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2I. General Service Signs

§2I.01 Sizes of General Service Signs

Standard

01. Except as provided in Section 2A.07, the sizes of General Service signs that have a standardized design shall be as shown in Table 2I-1 and Table 2I-1(CA).

Support

02. Section 2A.07 contains information regarding the applicability of the various columns in Table 2I-1.

Option

03. Signs larger than those shown in Table 2I-1 may be used (see Section 2A.07).

§2I.02 General Service Signs for Conventional Roads

Support

On conventional roads, commercial services such as gas, food, and lodging generally are within sight and are available to the road user at reasonably frequent intervals along the route. Consequently, on this class of road there usually is no need for special signs calling attention to these services. Moreover, General Service signing is usually not needed in urban areas except for hospitals, law enforcement assistance, tourist information centers, and camping.

Option

02. General Service signs (see Figure 2I-1 and Figure 2I-1(CA)) may be used on conventional roads where such services are infrequent and are found only on an intersecting highway or crossroad.

Standard

03. All General Service signs and supplemental sign panels shall have a white legend and border on a blue background.

Guidance

04. General Service signs should be installed at a suitable distance in advance of the turn-off point or intersecting highway.

05. States that elect to provide General Service signing should establish a statewide policy or warrant for its use, and criteria for the availability of services. Local jurisdictions electing to use such signing should follow State policy for the sake of uniformity.

Option

06. Individual States may sign for whatever alternative fuels are available at appropriate locations.

Standard

07. To be eligible for an EV Charging General Service sign on a conventional road, the EV chargers provided shall meet the criteria for Direct Current Fast Chargers provided in 23 CFR 680.106 and be in continuous operation at least 16 hours per day, 7 days per week.

08. General Service signs, if used at intersections, shall be accompanied by a directional message.

Option

09. The Advance Turn (M5 series) or Directional Arrow (M6 series) auxiliary plaques (see Figure 2I-1) with white arrows on blue backgrounds may be used with General Service symbol signs to create a General Service directional assembly.

09a. The NEXT RIGHT/LEFT (G58P(CA)) plaque may also be used in conjunction with the General Service signs.

10. The General Service sign legends may be either symbols or word messages.

Standard

11. Symbols and word message General Service legends shall not be intermixed on the same sign.

12. The Pharmacy (D9-20) sign shall only be used to indicate the availability of a pharmacy that is open, with a State-licensed pharmacist present and on duty, 24 hours per day, 7 days per week, and that is located within 3 miles of an interchange on the Federal-aid system. The D9-20 sign shall have a 24 HR (D9-20aP) plaque mounted below it.

13. Use of the Hospital (D9-2) sign or the HOSPITAL (D9-13aP) plaque (see Figure 2I-1) shall be limited to facilities that operate 24 hours per day, 7 days per week.

Option

14. The Emergency Medical Services (D9-13) sign (see Figure 2I-1 and Paragraph 20 21 of this Section) may be used

01. for facilities that provide emergency medical care but do not operate on a full-time basis.

Support

15. Formats for displaying different combinations of these services are described in Section 2I.03.

Option

16. If the distance to the next point at which services are available is 10 miles or more, a Next Services Advance (D9-17P) plaque (see Figure 2I-2) may be installed below the General Service sign.

17. The International Symbol of Accessibility (D9-6) sign (see Figure 2I-1) may be used beneath General Service signs where paved ramps and rest room facilities accessible to, and usable by, persons with disabilities are provided.

Guidance

18. When the D9-6 sign is used in accordance with Paragraph 16 of this Section, and van-accessible parking is available at the facility, a VAN ACCESSIBLE (D9-6P) plaque (see Figure 2I-1) should be mounted below the D9-6 sign.

Option

19. The Recreational Vehicle Sanitary Station (D9-12) sign (see Figure 2I-1) may be used as needed to indicate the availability of facilities designed for the use of dumping wastes from recreational vehicle holding tanks.

20. The Litter Container (D9-4) sign (see Figure 2I-1) may be placed in advance of roadside turn-outs or rest areas, unless it distracts the driver’s attention from other more important regulatory, warning, or directional signs.

21. The Emergency Medical Services (D9-13) symbol sign (see Figure 2I-1) may be used to identify medical service facilities that have been included in the Emergency Medical Services system under a signing policy developed by the State and/or local highway agency.

Standard

22. The Emergency Medical Services symbol sign shall not be used to identify services other than qualified hospitals, ambulance stations, and qualified free-standing emergency medical treatment centers. If used, the Emergency Medical Services symbol sign shall be supplemented by a sign or plaque, as provided in Paragraph 22 23 of this Section, identifying the type of service provided.

Option

23. The Emergency Medical Services symbol sign may be used above the HOSPITAL (D9-13aP) plaque or above a plaque with the legend AMBULANCE STATION (D9-13bP), EMERGENCY MEDICAL CARE (D9-13cP), or TRAUMA CENTER (D9-13dP). The Emergency Medical Services symbol sign may also be used to supplement Telephone (D9-1), Channel 9 Monitored (D12-3) (see Figure 2I-8), or POLICE (D9-14) signs.

Standard

24. The legend EMERGENCY MEDICAL CARE shall not be used for services other than qualified free-standing emergency medical treatment centers.

Guidance

25. Each State should develop a policy for the implementation of the Emergency Medical Services symbol sign.

26. The State should consider the following guidelines in the preparation of its policy:

  • A. AMBULANCE
    • 1. 24-hour service, 7 days per week.
    • 2. Staffed by two State-certified persons trained at least to the basic level.
    • 3. Vehicular communications with a hospital emergency department.
    • 4. Operator should have successfully completed an emergency-vehicle operator training course.
  • B. HOSPITAL
    • 1. 24-hour service, 7 days per week.
    • 2. Emergency department facilities with a physician (or emergency care nurse on duty within the emergency department with a physician on call) trained in emergency medical procedures on duty.
    • 3. Licensed or approved for definitive medical care by an appropriate State authority.
    • 4. Equipped for radio voice communications with ambulances and other hospitals.
  • C. Channel 9 Monitored
    • 1. Provided by either professional or volunteer monitors.
    • 2. Available 24 hours per day, 7 days per week.
    • 3. The service should be endorsed, sponsored, or controlled by an appropriate government authority to guarantee the level of monitoring.

§2I.03 General Service Signs for Freeways and Expressways

Support

01. General Service (D9-18 series) signs (see Figure 2I-3) are generally not appropriate at major interchanges (see definition in Section 2E.11) and in urban areas.

Standard

02. General Service signs shall have a white legend and border on a blue background. Letter and numeral sizes shall comply with the minimum requirements of Tables 2E-2 through 2E-5. All approved symbols shall be permitted as alternatives to word messages, but symbols and word service messages shall not be intermixed on the same sign. If the services are not visible from the ramp of a single-exit interchange, the service signing shall be repeated in smaller size at the intersection of the exit ramp and the crossroad. Such service signs shall use arrows to indicate the direction to the services.

Guidance

03. Where General Service signs are used along routes with exit numbering, the General Service sign should include the exit number within the sign face as shown in Figure 2I-3.

04. Distance to services should be displayed on General Service signs along the exit ramp where distances are more than 1 0.5 mile from the ramp intersection with the crossroad.

04a. To avoid misleading the road user, those services that are more than 0.5 miles from the access point on the major route to the service, should have a Distance with Arrow (G66-21aP(CA)) plaque installed below the service sign.

Support

04b. Accordingly, it would be a disservice to the traveler to lead them off on to a minor road to a business providing a service when that same service can be obtained in a shorter distance by remaining on the major road.

Guidance

05. General Service signing should only be provided at locations where the road user can return to the freeway or expressway and continue in the same direction of travel.

Support

05a. Refer to FHWA’s List of Known Errors for error in heading between Paragraphs 5 and 6. Refer to Section 1A.04 for more details.

Guidance

06. Only services that fulfill the needs of the road user should be displayed on General Service signs. If State or local agencies elect to provide General Service signing, there should be a statewide policy for such signing and criteria for the eligibility and availability of the various types of services. The criteria should consider the following:

  • A. Gas, diesel, and/or alternative fuels, except for electric vehicle (EV) charging, if all of the following are available:
    • 1. Vehicle services such as gas, oil, and water;
    • 2. Modern sanitary facilities and drinking water; and
    • 3. Continuous operations at least 16 hours per day, 7 days per week.
  • B. Food if all of the following are available:
    • 1. Licensing or approval, where required;
    • 2. Continuous operation to serve at least two meals per day, at least 6 days per week; and
    • 3. Modern sanitary facilities.
  • C. Lodging if all of the following are available:
    • 1. Licensing or approval, where required;
    • 2. Adequate sleeping accommodations; and
    • 3. Modern sanitary facilities.
  • D. Public telephone if continuous operation, 7 days per week is available.
  • E. Hospital if continuous emergency care capability, with a physician on duty 24 hours per day, 7 days per week is available. A physician on duty would include the following criteria and should be signed in accordance with the priority as follows:
    • 1. Physician on duty within the emergency department;
    • 2. Registered nurse on duty within the emergency department, with a physician in the hospital on call; or
    • 3. Registered nurse on duty within the emergency department, with a physician on call from office or home.
  • F. 24-Hour Pharmacy if a pharmacy is open, with a State-licensed pharmacist present and on duty, 24- hours per day, 7 days per week and is located within 3 miles of an interchange on the Federal-aid system.
  • G. Camping if all of the following are available:
    • 1. Licensing or approval, where required;
    • 2. Adequate parking accommodations; and
    • 3. Modern sanitary facilities and drinking water.

Standard

07. To be eligible for an EV Charging General Service sign on freeways and expressways, the EV chargers provided shall meet the criteria for Direct Current Fast Chargers provided in 23 CFR 680.106 and be in continuous operation at least 16 hours per day, 7 days per week.

Support

08. Motorist expectations for facilities providing alternative fuels, such as EV Charging, compressed natural gas, liquefied natural gas, liquefied petroleum gas, and hydrogen, vary considerably and alternative fuel vehicles might have different needs than conventional fuel vehicles.

Guidance

09. The policy criteria for alternative fuel vehicles should take into account the needs, convenience, and safety of alternative fuel vehicle users (see Section 2H.14).

Standard

10. For any service that is operated on a seasonal basis only, the General Service signs shall be removed or covered during periods when the service is not available.

11. The General Service signs shall be mounted in an effective location, between the Advance Guide sign and the Exit Direction sign, in advance of the exit leading to the available services.

Option

12. If the distance to the next point where services are available is greater than 10 miles, a Next Services Advance (D9-17P) plaque (see Figure 2I-2) may be installed below the Exit Direction Advance Guide sign.

Guidance

12a. Whenever possible, General Service signs should be placed below the ground mounted Advance Guide (G83(CA) Series) signs. No more than four symbols should be mounted beneath a single advance directional sign.

Option

12b. If there are no ground mounted Advance Guide (G83(CA) Series) signs available, the General Service signs may be placed as separate installations with a Directional Arrow Auxiliary (M6 Series) sign or NEXT RIGHT/LEFT (G58P(CA)) plaque.

Standard

13. Signs for services shall comply with the format for General Service signs (see Section 2I.02) and as provided in this Manual. No more than six general road user services shall be displayed on one sign, which includes any appended supplemental signs or plaques. General Service signs shall display the legends for one or more of the following services: Food, Gas, EV Charging, Lodging, Camping, Phone, Hospital, 24-Hour Pharmacy, or Tourist Information.

14. The qualified services available shall be displayed at specific locations on the sign.

Guidance

15. To provide for future services that might become available, the sign space normally reserved for a given service symbol or word should be left blank when that service is not present.

16. The standard display of word messages should be FOOD and PHONE in that order on the top line, and GAS and LODGING on the second line. If used, HOSPITAL, 24-HOUR PHARMACY, and CAMPING should be on separate lines (see Figure 2I-3).

Option

17. Signing for EV Charging, DIESEL, LP-GAS, or other alternative fuel services may be substituted for any of the general services or appended to such signs. The International Symbol of Accessibility (D9-6) sign (see Figure 2I-1) may be used for facilities that qualify.

Guidance

18. When symbols are used for the road user services, they should be displayed as follows:

  • A. Six services:
    • 1. Top row—GAS, FOOD, and LODGING
    • 2. Bottom row—PHONE, HOSPITAL, and CAMPING
  • B. Four services:
    • 1. Top row—GAS and FOOD
    • 2. Bottom row—LODGING and PHONE
  • C. Three services:
    • 1. Top row—GAS, FOOD, and LODGING

Option

19. Substitutions of other services for any of the services described in Paragraph 18 of this Section may be made by placing the substitution in the lower right (four or six services) or extreme right (three services) portion of the sign. An action message or an interchange number may be used for symbol signs in the same manner as they are used for word message signs. The Diesel Fuel (D9-11) symbol or the LP-GAS (D9-11e) symbol may be substituted for the symbol representing fuel or appended to such assemblies. The Tourist Information (D9-10) or the 24-Hour Pharmacy (D9-20 and D9-20aP) symbol may be substituted on any of the configurations provided in Paragraph 18 of this Section.

Guidance

20. At rural interchange areas where limited road user services are available and where it is unlikely that additional services will be provided within the near future, a Rural Interchange General Services (D9-18dP, D9-18eP, or D918fP) plaque displaying one to three services (words or symbols) may should be mounted below a post-mounted Interchange Advance guide sign.

Standard

21. If more than three services become available at rural interchange areas where limited road user services were anticipated, the appended supplemental plaque described in Paragraph 20 of this Section shall be removed and replaced with an independently mounted General Service sign as described in this Section.

Option

22. A separate Telephone Service (D9-1) sign (see Figure 2I-1) may be installed if telephone facilities are located adjacent to the route at places where public telephones would not normally be expected.

23. The Recreational Vehicle Sanitary Station (D9-12) sign (see Figure 2I-1) may be used as needed to indicate the availability of facilities designed for dumping wastes from recreational vehicle holding tanks.

24. In some locations, signs may be used to indicate that services are not available.

25. A separate Truck Parking (D9-16) sign (see Figure 2I-1) may be mounted below the other general road user services to direct truck drivers to designated parking areas.

26. A TRUCK EXTERNAL POWER (D9-16aP) plaque (see Figure 2I-1) may be mounted below the Truck Parking (D9-16) sign to indicate the availability of receptacles providing power for electrical devices within the truck.

Support

26a. Refer to FHWA’s List of Known Errors for error in Paragraph 26. Refer to Section 1A.04 for more details.

Option

27. General Service signs may be placed where appropriate, on freeways and expressways and for bypassed communities reasonably accessible from the highway.

Support

28. General Service signs are not normally used on conventional highways except in rural areas where the service facilities are not visible from the highway or where commercial services are infrequent and the road users may need the information to enable them to plan their stops. Service signing is intended to be a service to the road user and not to be advertising for individual businesses. When private advertising for a service is provided, there is no need to place General Service signs.

29. In urban areas, commercial services (such as fuel, food, and lodging) are generally within sight and available to the road user at reasonably frequent intervals along the route. However, they can be desirable or necessary where services are infrequent or in areas that are predominantly residential or industrial, where such services are not readily apparent. Also, if the visibility of the private advertising signs have impaired or eliminated either by sound-walls or other items constructed on State right-of-way, or by landscaping or other vegetation that cannot be trimmed or removed, the location can qualify for General Service signing.

Standard

30. The following criteria shall apply to General Service signs:

  • 1. The business shall be within 1,000 feet of the intersection.
  • 2. All other qualifying criteria for Fuel, Food, and Lodging listed below shall be met.

Support

Except for the conditions stated above, General Service signing will not normally be provided in urban areas except for signs directing to a hospital and camping.

Standard

32. Follow-up signing, if necessary, shall be placed by local jurisdictions before General Service signs are placed on the State highway.

33. The maximum distance to a service station shall be 0.5 miles and have reasonably direct access from and return to the highway.

Option

34. Service may be signed to in bypassed communities, if the distance to the service is less than the distance to the next service on the through route.

Standard

35. Fuel, oil, compressed air, air gauge, radiator water, drinking water, telephone and restrooms shall be available during all service hours.

Guidance

36. The station should be open at least 12 hours a day.

Standard

37. Where gasoline is available, the Gas (D9-7) symbol sign shall be used.

38. Where gasoline and diesel are available, the Diesel Fuel (D9-11) symbol sign (with a superimposed “D”) shall be used.

Option

39. Where biofuel is available, the Biofuel (D9-11g) sign may be used in addition to other appropriate service signs.

40. The ELECTRIC VEHICLE CHARGING (D9-11b) sign may be used for Electric Vehicle Charging Stations in compliance with paragraph 07 of this section or paragraph 07 of section 2I.02 for conventional highways.

41. The FAST (G66-21cP(CA)) header plaque may be used to supplement the D9-11b sign to indicate that a Fast Electric Vehicle Charging Station is located off the State highway.

Support

42. A Fast Electric Vehicle Charging Station is where the rate of battery electric charging is at least 20 kWh in a 30-minute period. Fast charging stations include direct current (DC) fast charging and battery switching.

Option

43. The Liquefied Petroleum Gas (D9-11e) sign may be used for Liquefied Petroleum Gas Refueling Stations within 3 miles of a State highway and be available to the public at least 16 hours a day.

44. Where methanol fuel is available, the Methanol Fuel (G66-11B(CA)) sign may be used in addition to other appropriate service signs.

45. The Compressed Natural Gas (D9-11a) sign may be used for Compressed Natural Gas Refueling Stations within 3 miles of a State highway and be available to the public at least 16 hours a day.

46. The Liquefied Natural Gas (D9-11d) sign may be used for Liquefied Natural Gas Refueling Stations within 3 miles of a State highway and be available to the public at least 16 hours a day.

47. Where ethanol E85 fuel is available, the Alternative fuel -Ethanol (D9-11c) symbol sign may be used in addition to the other appropriate signs.

48. Where hydrogen (HYD) fuel is available, the Hydrogen (D9-11f) symbol sign may be used within 3 miles of a State highway and be available to the public at least 16 hours a day, in addition to the other appropriate signs.

Support

49. Refer to Section 2A.04 on the development of new word message signs for alternative fuels. Food or Lodging Signs (D9-8 and D9-9)

Standard

50. To qualify for food signs, single establishments shall be open to serve at least two meals a day. Both food and lodging establishments shall score at least 10 points in the following categories, including at least one point in Category 4, to qualify for signs.

  • 1. Maximum distance from the highway exit to the first service facility:

31. 0 – 1 mile 3 Points 1 – 2 miles 2 Points 2 – 5 miles 1 Point More than 5 miles 0 Points

  • 2. Number of traffic control devices (signals or stop signs) between the exit and the facility: 0 - 1 Devices 3 Points 2 – 3 Devices 2 Points 4 – 4 Devices 1 Point More than 5 0 Points
  • 3. Number of seats available in food facilities: 50 or more 3 Points 30 – 49 2 Points 15 – 29 1 Point Less than 15 0 Points
  • 4. Number of rooms available with private baths at lodging facilities: 30 or more 3 Points 10 – 30 2 Points 2 – 10 1 Point Less than 2 0 Points
  • 5. Distance to the next highway exit served by a food or lodging establishment: 15 miles or more 3 Points 7 – 15 miles 2 Points 3 – 7 miles 1 Point 3 miles or less 0 Points

Guidance

  • 6. Judgment factors include comfort, appearance, scope of service provided, etc., should be scored 0 to 3 points by the inspecting official. Camping Signs (D9-3)

Option

51. The Camping (D9-3) sign may be placed for campgrounds providing individual service and utility hookups for one-night stops for travel trailers, campers and other recreational vehicles.

Standard

52. To qualify for the Camping (D9-3) sign, the facility shall meet all the following criteria:

  • 1. It shall be licensed for private operation or be operated by a governmental agency.
  • 2. It shall be accessible to and capable of handling all types of recreational vehicles.
  • 3. It shall be open to the public for 24 hours each day during the time the signs are in place.
  • 4. It shall be no more than 10 miles from the highway exit designated by the sign.
  • 5. It shall be equipped to handle a minimum of 25 travel trailers, campers, and other recreational vehicles for overnight stops, including individual service, utility hook-ups and individual sewer connections or a central sewer holding tank. Hospital Sign (D9-2 and D9-13)

Option

53. Hospitals, as defined in CCR, Title 22, Division 5, Chapter 1, Article 1, § 70005 and licensed by the Department of Health Services, which provide 24 hour inpatient care, in urban and rural areas which are located in close proximity to a highway and provide specified medical services, may qualify for the Hospital (D9-2) symbol sign.

54. The D9-2 signs may be provided for hospitals in urban areas within 1 mile of a highway, accept emergency cases and have a medical doctor in attendance 24 hours a day.

55. The D9-2 signs may be provided for hospitals in rural areas within 3 miles of a highway, accept emergency cases and have a doctor on call 24 hours a day.

56. Exceptions to the distance requirement may be made in areas where hospitals are a great distance apart. Telephone Sign (D9-1)

57. The Telephone (D9-1) sign is placed where a telephone is available 24 hours a day and is located in a remote area where it would not be expected. STAA Truck Service and Terminal Access Signs (G66-55(CA) and G66-56(CA))

58. The STAA Truck Service (G66-55(CA)) and STAA Truck Terminal Access (G66-56(CA)) signs may be placed by Caltrans on the National Network of Highways to identify locations where STAA trucks may leave the National Network to access services and terminals per CVC § 35401.5(c) and (d). The G66-55(CA) and G66-56(CA) signs may also be used on Terminal Access routes to indicate turns and access ending points.

Support

59. More information on the National Network and State Terminal Access routes is available from the Office of Traffic Engineering in Caltrans’ Division of Traffic Operations. Some of this information can also be accessed on the Internet at the following web site: http://www.dot.ca.gov/hq/traffops/engineering/trucks/ STAA Definitions
• STAA - Surface Transportation Assistance Act of 1982, federal funding authorization that declared, among other things;

  • 1. Semitrailers up to and including 48 feet in length are exempt from state kingpin to rear axle (KPRA) and overall combination length limits,
  • 2. Semitrailers over 48 feet long and up to and including 53 feet in length are exempt from state overall length limits. (These semitrailers are subject to state KPRA limits in California.),
  • 3. Double trailers in combination where each does not exceed 28.5 feet in length are exempt from any state overall length limits.
  • 4. Federal length rules apply to these combination vehicles only when operating on a federally declared system of highways called the National Network and the state and local determined terminal access and service access highways. Note: Tour buses up to 45 feet long (motorcoaches) were added to the federal regulations under the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA). Motorhomes (housecars) up to 45 feet in length were legalized in California in October 2001. Although highway restrictions apply to both these vehicle types, they may operate beyond the STAA Network. However, the Motorcoach and Motorhome Network map defines highway access restrictions imposed at the limits of turning performance (i.e., the 45 feet vehicles would need to cross centerlines).
    • National Network – federally designated state highways for STAA vehicles as defined and listed in the Federal Code of Regulations, Title 23, Part 658 (23CFR658) and 658.23 Appendix A.
    • Terminal Access – state and local agency highways designated for “reasonable access” to/from the National Network by STAA vehicles as provided for in the CVC § 35401.5(c) and (d). All transitions (egress) from National Network to Terminal Access highways, critical decision points (all turns) and Terminal Access end points should be so designated with a G66-56(CA) sign.
    • STAA Network – the California network of Terminal Access and National Network highways. A map and Truck Route List identifying the STAA Network (includes State highway system only, does not include local streets and roads) are available from Office of Traffic Engineering in Caltrans’ Division of Traffic Operations.
    • Service Access (SA) – state and local agency highways identified for service use by STAA vehicles. Service access is limited to 1 mile off the STAA network and must be “identified.” Identification may include a map indicating service access for STAA vehicles, an approved list, or by G66-55(CA) signs.
    • STAA trucks – are truck tractor-semitrailer combinations, or doubles with a long length configuration such that the vehicles may operate legally only on the STAA Network and SA routes. STAA Truck Service (G66-55(CA)) Sign

Option

60. The STAA Truck Service (G66-55(CA)) Sign may be placed on the STAA Network to identify locations where STAA trucks may exit the network to obtain services as provided for by CVC § 35401.5(c) and (d).

Standard

61. STAA trucks shall not exit the STAA Network to obtain services unless the G66-55(CA) sign indicates egress. STAA Truck Service (G66-55(CA)) signs shall be provided as follows:

  • 1. Access – All the following requirements shall be met:
    • Fuel, food, lodging and/or repair facilities shall be located within 1 mile of the point of ingress and egress from the designated system.
    • Ramps, intersections and streets shall have adequate turning radii and lane widths to safely accommodate STAA trucks.
    • The service being made accessible shall have parking provisions for STAA trucks, or alternative parking within 1 mile shall be identified.
  • 2. Facilities – Two of the four services - fuel, food, lodging & repair - shall be provided:
    • Fuel (Diesel) - Fuel is available at least 12 hours during the working day.
    • Food - Conforms to requirements for Food (D9-8) signs in this section.
    • Lodging - Conforms to requirements for Lodging (D9-9) signs in this section.
    • Repair Services - Oil, tire repair, engine and brake services are available.
  • 3. Concurrence:
    • The proposal for G66-55(CA) signing has written concurrence by the local jurisdiction(s) having responsibility for maintenance of the roadways within 1 mile of ingress/egress.
  • 4. Sign Placement:
    • The G66-55(CA) sign on the STAA Network shall be displayed in advance of the ramp or intersection.
    • Although no follow-up signing is required, trailblazer signs may be used where applicable. STAA Truck Terminal Access (G66-56(CA)) Sign

Option

63. STAA Truck Terminal Access (G66-56(CA)) signs may be placed to identify Terminal Access routes leading from the National Network as trailblazers and to indicate the end of a Terminal Access route. STAA trucks can exit the National Network onto Terminal Access routes only where indicated by a G66-56(CA) sign. (Note: In California, no signs indicate the National Network routes.) State routes may be designated Terminal Access only if the curves, ramps, and intersections meet the geometric criteria for STAA trucks, including adequate turning radii and lane width.

Support

64. The geometric criteria for using the STAA design vehicle to design or analyze the intersection, ramp, or curve are described in Topic 404 in the Caltrans Highway Design Manual. If the Terminal Access route ends without connecting to another STAA route, then the geometric criteria also include ensuring that an adequate turn-around location is available for all STAA vehicles 24 hours per day, 7 days per week.

Standard

65. STAA Truck Terminal Access (G66-56(CA)) signs shall be provided as follows:

  • 1. On State Routes:
    • State route segments under consideration for Terminal Access shall meet all geometric criteria (see Paragraph 60) for STAA trucks.
    • The end of any Terminal Access route segment shall be signed as such.
    • Trail-blazing signs shall be placed at decision points indicating direction(s) a STAA truck may proceed.
    • The G66-56(CA) sign shall be placed in advance of the ramp or intersection where a STAA truck may exit the National Network or the designated Terminal Access routes.
  • 2. On Local Routes:
    • Signing of egress from a State Terminal Access route to a local Terminal Access route shall be done by Caltrans, only if: a) The local agency has requested that Caltrans place the sign and, b) the local agency has informed Caltrans in writing that the local roads and intersections on the proposed local Terminal Access route meet all geometric criteria for STAA trucks and,

62. • c) where the proposed Terminal Access route passes through more than one local jurisdiction, each affected agency has informed Caltrans in writing that the local roads and intersections on the proposed local Terminal Access route meet all geometric criteria for STAA trucks and, d) Caltrans has verified that the State highway ramps or intersections meet all geometric criteria for STAA trucks. After steps a) through d) have been completed in item 2 “On Local Routes,” the local agency or agencies shall place G66-56(CA) signs at every critical decision point on the Terminal Access route in their respective jurisdictions, including a G66-56(CA) sign with END Auxiliary (M4-6P) sign at the 24-hour turn-around location where the Terminal Access route ends if it does not connect to another STAA route. After the local agency or agencies have placed all the required signs on the local Terminal Access routes, Caltrans shall place a G66-56(CA) sign on the State route in advance of the ramp or intersection to the local Terminal Access route.

Guidance

• Local agencies should furnish Terminal Access route information to the Office of Commercial Vehicle Operations for web publication. Some examples are available on the following website: https://dot.ca.gov/programs/traffic-operations/legal-truck-access/local-truck-routes NEXT EXIT OK Sign (G66-56aP(CA))

Option

66. The NEXT EXIT OK (G66-56aP(CA)) sign may be used below the appropriate G66-55(CA) or G66-56(CA) signs. Law Enforcement Signs (G66-57A(CA), G66-61A(CA) and D9-14

67. The Highway Patrol (G66-57A(CA)) signs may be placed for California Highway Patrol offices located within 1 mile of a highway.

68. The Sheriff (G66-61A(CA)) sign may be placed for a sheriff's office located within 1 mile of a highway.

69. The Police (D9-14) sign may be placed for a police station located within 1 mile of a highway. Emergency Services Signs

70. Emergency Service signs, such as DRINKING WATER, RADIATOR WATER; etc. may be placed when appropriate. Call Box Signs (SG25(CA) and SG41(CA))

Support

71. The Call Box (SG25(CA)) sign is used to designate call boxes on the county SAFE (Service Authority for Freeway Emergencies) Call Box System. The special sign sizes are intended for use only on scenic highways, within designated coastal zones and National or State parks, to keep signing compatible with scenic values.

72. The call box identification number is established by using the route number to the left of the hyphen. The first two numbers to the right of the hyphen are the post mile numbers (or three numbers if applicable); the last number locates the call box within the post mile.

73. For northbound and eastbound routes, this number will be 2 for the call box in the first quarter mile; 4 for the call box between one quarter and one half mile; 6 for the call box between one half and three quarter mile; and 8 for the call box between three quarter and one mile, within a given post mile. 0 will be used for infills or for call boxes at the post mile.

74. For southbound and westbound routes, this number will be 3 for the call box in the first quarter mile; 5 for the call box between one quarter and one half mile; 7 for the call box between one half and three quarter mile; and 9 for the call box between three quarter and one mile, within a given post mile. 1 will be used for infills or for call boxes at the post mile.

Option

• A letter code may precede the post mile (R for realignment, etc.).

Standard

• Call boxes located in the median shall be designated by the letter “M” following the post mile.
• Call boxes located on a transition or connector shall be designated by the letter “T” following the post mile.
• Call boxes located at a park and ride lot shall be designated by the letter “A” following the post mile.
• Call boxes located on a carpool lane shall be designated by the letter “P” following the post mile.
• Call boxes located on a split (i.e. Cypress) shall be designated by the letter “S” following the post mile.

Option

75. The END CALL BOXES (SG41(CA)) sign may be used to inform motorists of the end of the SAFE Call Box System for a particular segment of highway. CAL Fire Station Signs (SG38A(CA) and SG39A(CA))

Option

76. The CAL FIRE STATION NEXT RIGHT (SG38A(CA)) sign may be used on freeways in rural areas to give advance notice of an exit to a California Department of Forestry Fire Station which is within 0.5 miles of the exit and is open 24 hours each day of the year.

77. The CAL FIRE STATION with Arrow (SG39A(CA)) sign may be used in rural areas on expressways, conventional highways and freeway ramp terminals in advance of the turn off to a California Department of Forestry Fire Station which is within 0.5 miles of the exit and is open 24 hours each day of the year.

§2I.04 Interstate Oasis Signing (D5-12 Series)

Support

01. An Interstate Oasis is a facility near an Interstate highway that provides products and services to the public, 24-hour access to public restrooms, and parking for automobiles and heavy trucks. Interstate Oasis guide signs inform road users on Interstate highways as to the presence of an Interstate Oasis at an interchange and which businesses have been designated by the State within which they are traveling as having met the eligibility criteria of the Federal Highway Administration’s Interstate Oasis policy. The FHWA’s policy, which is dated October 18, 2006, and which can be viewed on the MUTCD Web site at http://mutcd.fhwa.dot.gov/res-policy.htm, provides a more detailed definition of an Interstate Oasis and specifies the eligibility criteria for an Interstate Oasis designation in compliance with the requirements of laws enacted by Congress.

Guidance

02. If a State elects to provide or allow Interstate Oasis signing (see Figure 2I-4), there should be a statewide policy, program, procedures, and criteria for the designation and signing of a facility as an Interstate Oasis that complies with the FHWA’s policy and with the provisions of this Section.

03. States electing to provide or allow Interstate Oasis signing should use the following signing practices on the freeway for any given exit to identify the availability of a designated Interstate Oasis:

  • A. If adequate sign spacing allows, a separate Interstate Oasis (D5-12) sign should be installed in an effective location with spacing of at least 800 feet from other adjacent guide signs, including any Specific Service signs. This Interstate Oasis sign should be located upstream from the Advance Guide sign or between the Advance Guide sign and the Exit Direction sign for the exit leading to the Interstate Oasis. The Interstate Oasis sign should display the words INTERSTATE OASIS and the exit number or, for an unnumbered interchange, an action message such as NEXT RIGHT.
  • B. If the spacing of the other guide signs precludes the use of a separate sign as described in Item A of this Paragraph, an INTERSTATE OASIS (D5-12aP) supplemental plaque should be mounted below an existing D9-18 series General Service sign for the interchange.

Option

04. If Specific Service signing is provided at the interchange, a business designated as an Interstate Oasis and having a business identification sign panel on the Food and/or Gas Specific Service signs may use the bottom portion of the business identification sign panel to display the word OASIS.

05. If Specific Service signing is not provided at the interchange, the name of the business designated as an Interstate Oasis may be displayed on a business identification sign panel, in compliance with the provisions of Sections 2J.03 through 2J.05, below the INTERSTATE OASIS legend on the D5-12 sign.

Standard

06. If Specific Service signs containing the OASIS legend as a part of the business identification sign panel(s) are not used on the ramp and if the Interstate Oasis is not clearly visible and identifiable from the exit ramp, an Interstate Oasis Directional (D5-12b) sign shall be provided on the exit ramp to indicate the direction and distance to the Interstate Oasis.

07. If needed, additional trailblazer guide signs shall be used along the crossroad to guide road users to an Interstate Oasis.

§2I.05 Rest Area and Other Roadside Area Signs (D5-1 through D5-11 Series)

Standard

01. Rest Area signs (see Figure 2I-5 and Figure 2I-5(CA)) shall have a retroreflective white legend and border on a blue background.

02. Signs that include the legend REST AREA shall be used only where parking and restroom facilities are available.

Guidance

03. A roadside area that does not contain restroom facilities should be signed to indicate the major road user service that is provided. For example, the sign legends for an area with only parking should use the words PARKING AREA (D5-9 series) instead of REST AREA. The sign legends for an area with only picnic tables and parking should use words such as PICNIC AREA, ROADSIDE TABLE, or ROADSIDE PARK (D5- 10 series) instead of REST AREA.

04. Rest areas that have tourist information and welcome centers should be signed as provided in Section 2I.08.

05. Scenic area signing should be consistent with that provided for rest areas, except that the legends should use words such as SCENIC AREA, SCENIC VIEW, or SCENIC OVERLOOK (D5-11 series) instead of REST AREA.

06. If a rest area or other roadside area is provided on a conventional road, a D5-1 and/or D5-1a sign should be installed in advance of the rest area or other roadside area to permit the driver to reduce speed in preparation for leaving the highway. A D5-5 sign (or a D5-2 sign if an exit ramp is provided) should be installed at the turn-off point where the driver needs to leave the highway to access the rest area or other roadside area.

07. If a rest area or other roadside area is provided on a freeway or expressway, a D5-1 sign should be placed 1 mile and/or 2 miles in advance of the rest area.

Standard

07a. When rest areas are provided (or planned) on the same route, a NEXT REST (XX MILES) Plaque (G79aP(CA)) shall be placed below the REST AREA (XX MILES) (D5-1) sign.

08. A D5-2a sign shall be placed at the rest area or other roadside area exit gore.

Option

09. A D5-1a sign may be placed between the D5-1 sign and the exit gore on a freeway or expressway. A second D5-1 sign may be used in place of the D5-1a sign with a distance to the nearest ½ or ¼ mile displayed as a fraction rather than a decimal for distances of less than 1 mile.

10. To provide the road user with information on the location of succeeding rest areas, a Next Rest Area (D5-6) sign (see Figure 2I-5) may be installed independently or as a supplemental sign mounted below one of the REST AREA advance guide signs.

Standard

11. All signs on freeways and expressways for rest and other roadside areas shall have letter and numeral sizes that comply with the minimum requirements of Tables 2E-2 through 2E-5. The sizes for General Service signs that have standardized designs shall be as shown in Table 2I-1.

Option

12. If the rest area has facilities for persons with disabilities (see Section 2I.02), the International Symbol of Accessibility (D9-6) sign (see Figure 2I-1) may be placed with or beneath an advance guide sign for the rest area.

13. If telecommunication devices for the deaf (TDD) are available at the rest area, the TDD (D9-21) symbol sign (see Figure 2I-1) may be used to supplement the advance guide signs for the rest area.

14. If wireless Internet services are available at the rest area, the Wireless Internet (D9-22) symbol sign (see Figure 2I-1) may be used to supplement the advance guide signs for the rest area.

15. The PATROLLED BY HIGHWAY PATROL (G80B(CA)) sign may be used below the REST AREA (D5-2) sign where the California Highway Patrol has made an agreement with Caltrans to patrol a specific rest area.

16. The Highway Patrol PARKING ONLY (S34(CA)) sign may be used in a Safety Roadside Rest Area to designate a parking stall(s) dedicated for California Highway Patrol Vehicles only. The S34(CA) sign may be supplemented with a “CHP” pavement marking.

Guidance

17. When used, the pavement marking should be located so that it is visible when a vehicle is parked in the space.

Option

18. The Rest Area/Vista Point 8 HOUR PARKING (S23(CA)) sign may be used to discourage extended stays in roadside rests or vista points for noncommercial vehicles. The 10-HOUR PARKING COMMERCIAL MOTOR VEHICLES (R39-3(CA)) may be used to allow ten total hours for parking for commercial vehicles. Refer to CVC § 22651(s)1 and CVC § 22651(s)2.

19. The NO SOLICITING (S24(CA)) sign may be used to prohibit the vending of merchandise, foodstuff, or services and the soliciting of money within any roadside rest areas or vista points. Refer to SHC § 225.5. Refer to Section 1A.05 for information regarding this publication.

20. The ALT FUEL VEHICLE PARKING ONLY (R116(CA)) sign may be used in a public parking facility or a park-and-ride lot to designate a parking stall(s) dedicated for alternatively fueled vehicles only.

Support

21. Public Resource Code § 25722.9 (a) defines “alternatively fueled vehicles” as light-, medium-, and heavy-duty vehicles that reduce petroleum usage and related emissions by using advanced technologies and fuels, including those vehicles described in § 5205.5 of the CVC.

§2I.06 Brake Check Area Signs (D5-13 and D5-14)

Guidance

01. If an area has been provided for drivers to pull off of the roadway to check the brakes on their vehicle, a Brake Check Area Advance (D5-13) sign (see Figure 2I-6) should be installed in advance of the brake check area.

Support

02. The Brake Check Area (G66-58(CA) sign (refer to Figure 2I-6(CA)) is provided to give notice to motorists, particularly truck operators, of an area provided to allow vehicle operators to stop and check the condition and adjustment of their brakes. These areas are generally provided just prior to a significant downgrade.

§2I.07 Chain-Up Area Signs (D5-15 and D5-16)

Guidance

If an area has been provided for drivers to pull off of the roadway to install chains on their tires, a Chain-Up Area Advance (D5-15) sign (see Figure 2I-6) should be installed in advance of the chain-up area, and a D5-16 sign (see Figure 2I-6) should be placed at the entrance to the chain-up area.

§2I.08 Tourist Information and Welcome Center Signs (D5-7 Series and D5-8)

Support

Tourist information and welcome centers have been constructed within rest areas on freeways and expressways and are operated by either a State or a private organization. Others have been located within close proximity to these facilities and operated by civic clubs, chambers of commerce, or private enterprise.

Guidance

02. The number of supplemental sign panels installed with Tourist Information or Welcome Center signs should be limited to three so as not to impose an undue informational load on the road user.

Standard

03. Tourist Information or Welcome Center signs (see Figure 2I-7 and Figure 2I-7(CA)) shall have a white legend and border on a blue background. Continuously staffed or unstaffed operation at least 8 hours per day, 7 days per week, shall be required.

04. If operated only on a seasonal basis, the Tourist Information or Welcome Center signs shall be removed or covered during the off seasons.

Guidance

05. For freeway or expressway rest area locations that also serve as tourist information or welcome centers, the following signing criteria should be used:

  • A. The locations for tourist information and welcome center Advance Guide, Exit Direction, and Exit Gore signs should meet the General Service signing requirements described in Section 2I.03.
  • B. If the signing for the tourist information or welcome center is to be accomplished in conjunction with the initial signing for the rest areas, the message on the Rest Area Tourist Info Center Advance (D5-7) sign should be REST AREA, TOURIST INFO CENTER, XX MILES or REST AREA, STATE NAME (optional), WELCOME CENTER XX MILES. On the Rest Area Tourist Info Center Entrance Direction (D5-8) sign the message should be REST AREA, TOURIST INFO CENTER with a diagonally upward-pointing directional arrow (or NEXT RIGHT), or

01. REST AREA, STATE NAME (optional), WELCOME CENTER with a diagonally upward-pointing directional arrow (or NEXT RIGHT).

  • C. If the initial rest area Advance Guide and Exit Direction signing is in place, these signs should include, on supplemental signs, the legend TOURIST INFO CENTER or STATE NAME (optional), WELCOME CENTER.
  • D. The Exit Gore sign should contain only the legend REST AREA with the arrow and should not be supplemented with any legend pertaining to the tourist information center or welcome center.

Option

06. As an alternative to the supplemental TOURIST INFO CENTER legend, the Tourist Information (D9-10) sign (see Figure 2I-1) may be appended beneath the REST AREA advance guide sign.

07. The name of the State or local jurisdiction may appear on the Advance Guide and Exit Direction tourist information/welcome center signs if the jurisdiction controls the operation of the tourist information or welcome center and the center meets the operating criteria set forth in this Manual and is consistent with State policies.

Guidance

08. For tourist information centers that are located off the freeway or expressway facility, additional signing criteria should be as follows:

  • A. Each State should adopt a policy establishing the maximum distance that a tourist information center can be located from the interchange in order to be included on official signs.
  • B. The location of signing should be in accordance with requirements pertaining to General Service signing (see Section 2I.03).
  • C. Signing along the crossroad should be installed to guide the road user from the interchange to the tourist information center and back to the interchange.

Option

09. As an alternative, the Tourist Information (D9-10) sign (see Figure 2I-1) may be appended to the guide signs for the exit that provides access to the tourist information center. As a second alternative, the Tourist Information sign may be combined with General Service signing. Tourist Information Signs (G81-21(CA) and G81-24(CA))

Option

10. The TOURIST INFORMATION (G81-21(CA) and G81-24(CA)) signs may be placed directing to off-highway facilities.

Support

11. These signed facilities need to have a principal function of providing local tourist information. Those facilities provided by local chamber of commerce (or other official body) representing a group of people or businesses need to be given initial priority for signing.

Guidance

12. The G81-21(CA) or G81-24(CA) signs should be placed on State highways only where privately-owned off-highway signs would not reasonably provide adequate directions to motorists. These signs should be restricted to those facilities which are spaced no closer than 15 miles apart in each direction along any highway. An excessive number of supplemental panels should not be installed with Tourist Information or Welcome Center signs so as not to overload the road user.

13. These signs should be placed beneath another primary guide sign.

Option

14. If no guide signs are available, the G81-21(CA) or G81-24(CA) signs may be placed as separate installations.

Guidance

15. Facilities should be within 0.5 miles of the highway and have reasonably direct access from, and return to, the highway.

16. Facilities should provide lighting, telephone and information on a 24-hour basis and cover the entire area served. Information should include area and regional maps, and 24-hour service information including, but not limited to medical, police, fire, restrooms, auto repair service and fuel. Outside maps and displays must be provided at all manned centers for use during periods when the facility is not manned.

17. Facilities should have adequate on premise and off right-of-way signing, where necessary, denoting “Tourist Information”. Displays should be professionally designed and constructed and provide resistance to fading, chipping and vandalism.

18. For freeway or expressway rest area locations that also serve as tourist information centers, the following signing criteria should be used:

  • A. The locations for the Advance Guide (G83(CA) Series), Exit Direction (G85(CA) Series), and Exit Gore (E5-1) signs should meet the General Service signing requirements.
  • B. The TOURIST INFORMATION (G81-21(CA) and G81-24(CA)) signs should be placed beneath the REST AREA (D5-2) sign or other primary guide sign. If no guide signs are available, they may be placed as a separate installation.
  • C. The gore sign should contain only the legend REST AREA with the arrow and should not be supplemented with any legend pertaining to the tourist information. California Welcome Center Signs (SG47(CA) Series)

Option

19. The CALIFORNIA WELCOME CENTER (SG47(CA) Series) signs may be placed directing to a statewide network of visitor information centers as designated by the California Office of Tourism to encourage tourism in California and provide benefits to the State economy.

Support

20. The facilities signed need to have a principal function of providing statewide tourist information. Centers that can be so designated need to include, but not be limited to, centers operated by convention centers and visitor bureaus, chambers of commerce, federal, state or local governments, or private entities.

Standard

21. Designation of an entity as a California Welcome Center shall be based on conditions established by the Office of Tourism through written agreement with the entity.

22. The SG47(CA) Series signs shall have a yellow welcome center logo, and a white legend and border on a blue background.

Guidance

23. The SG47(CA) Series signs should be placed as separate installations with the individual welcome centers being charged directly for the initial and ongoing cost and fees related production, maintenance and permitting of the signs.

24. Facilities should be within 3 miles in urban areas and 5 miles of a State highway and have reasonably direct access from, and return to, the highway.

Standard

25. Follow-up signing or trail blazers, if necessary, shall be placed by local jurisdictions before these signs are place on the State highway.

26. If operated only on a seasonal basis, where criteria cannot be met during closed periods, signs shall be covered or removed as directed by the Office of Tourism.

Option

27. The CALIFORNIA WELCOME CENTER X MILES (SG47A(CA)) sign may be placed on the nearest freeway approximately 2 miles, or more as appropriate, in advance of the exit to a California Welcome Center that has been established under the authority of the California Office of Tourism.

28. The CALIFORNIA WELCOME CENTER NEXT RIGHT (SG47B(CA)) sign may be placed on the nearest freeway, at the appropriate exit to a California Welcome Center that has been established under the authority of the California Office of Tourism.

29. The CALIFORNIA WELCOME CENTER with Arrow (SG47C(CA)) sign may be placed at a freeway ramp terminal, conventional highway or local road to provide direction to a California Welcome Center that has been established under the authority of the California Office of Tourism.

30. The CALIFORNIA WELCOME CENTER X MILES with Arrow (SG47D(CA)) sign may be placed at a freeway ramp terminal to provide direction and distance to a California Welcome Center that has been established under the authority of the California Office of Tourism.

Guidance

31. The distance on the SG47D(CA) sign should be no more than 3 miles from the State highway.

Support

32. The Welcome Center will be charged directly for the initial and ongoing cost and fees related to production, maintenance and permitting of the SG47A(CA), SG47B(CA), SG47C(CA) and SG47D(CA) signs.

§2I.09 Radio Information Signing (D12-1 Series)

Option

01. A Radio-Weather Information (D12-1) sign (see Figure 2I-8) may be used in areas where difficult driving conditions commonly result from weather systems. Radio-Traffic Information (D12-1a) signs may be used in conjunction with traffic management systems.

Standard

02. Radio-Weather and Radio-Traffic Information signs shall have a white legend and border on a blue background. Only the numerical indication of the radio frequency shall be used to identify a station broadcasting travel-related weather or traffic information. Stations shall broadcast on AM or FM frequencies licensed by the Federal Communications Commission (FCC) for traveler information stations. No more than three frequencies shall be displayed on each sign. Only radio stations whose signal will be of value to the road user and who agree to broadcast either of the following two items shall be identified on Radio-Weather and Radio- Traffic Information signs:

  • A. Periodic weather warnings at a rate of at least once every 15 minutes during periods of adverse weather; or
  • B. Driving condition information (affecting the roadway being traveled) at a rate of at least once every 15 minutes, or when required, during periods of adverse traffic conditions, and when supplied by an official agency having jurisdiction.

03. If a station to be considered operates only on a seasonal basis, its signs shall be removed or covered during the off season.

Guidance

04. The radio station should have a signal strength to adequately broadcast at least 70 miles along the route. Signs should be spaced as needed for each direction of travel at distances determined by an engineering study. The stations to be included on the signs should be selected in cooperation with the association(s) representing major broadcasting stations in the area to provide: (1) maximum coverage to all road users on both AM and FM frequencies; and (2) consideration of 24 hours per day, 7 days per week broadcast capability.

Option

05. The URGENT MESSAGE WHEN FLASHING (D12-1bP) plaque may be mounted below the D12-1 or D12-1a sign if supplemented by Warning Beacons (see Section 4S.03) that flash only when a message related to adverse travel conditions is being broadcast.

05a. The WHEN FLASHING (G81-64aP(CA)) plaque may be used with the D12-1, D12-1a, and the G81-65(CA) sign when messages are not broadcast full time and to accommodate “real-time” usage.

Guidance

05b. The G81-64aP(CA) plaque should be placed with flashing yellow beacons above and on the same posts with the D12-1 and D12-1a sign.

06. In roadway rest area locations, a smaller sign using a greater number of radio frequencies, but of the same general design, may be used.

Standard

07. Radio-Weather and Radio-Traffic Information signs installed in rest areas shall be positioned such that they are not visible from the main roadway.

Support

08. There are three types of radio information signs:

  • 1. Radio – Weather Information (D12-1)
  • 2. Radio – Traffic Information (D12-1a)
  • 3. Radio – Recreational Information (G81-65(CA)) Radio – Traffic Information (D12-1a)

Option

09. The D12-1a sign may be used to inform motorists of broadcasts about traffic conditions for highways and public inter-modal transportation facilities.

Support

10. The radio station needs to be operated by the public agency having jurisdiction over the transportation facility. The agency operating the station will be responsible for monitoring and maintaining the system and changing the message content as situations warrant. Radio – Recreation Information (G81-65(CA))

Option

11. The G81-65(CA) sign (refer to Figure 2I-8(CA)) may be used on rural highways to inform travelers of broadcasts about State or federal parks and recreational facilities.

Standard

12. The G81-65(CA) sign shall have a white legend and border on a brown background. The sign and sign structure shall be free of extraneous messages or logos, and must stand alone with no external lights or flashing beacons. Only the numerical indication of the radio frequency shall be used to identify a station. No more than three frequencies shall be shown on each sign. Only radio stations whose signal will be of value to the road user and who agree to broadcast in accordance with the items below shall be identified on this sign:

  • A. Provides information about State or federal recreational facilities located in rural areas.
  • B. Message content is devoted to public highway purposes.
  • C. Broadcasts operate 24 hours per day and 7 days per week.
  • D. Broadcasts contain no commercial messages.

Support

13. For installation of G81-65(CA) sign on State highways, the sign needs to be installed by the permittee through Caltrans’ encroachment permit process. The costs, conditions of operation, and specific message content needs to be clearly specified in the encroachment permit subject to the following terms and conditions:

  • A. The permittee is the State or federal agency that owns and/or operates the recreational facility.
  • B. The permittee possesses a valid FCC license to operate the radio station as a traveler information station.
  • C. The permittee is responsible for the accuracy of the message and message content.
  • D. The permittee bears all costs, including but not limited to, FCC approval and licensing; fabrication and installation of signs; and the installation, operation and maintenance of appurtenant radio equipment and facilities.

§2I.10 Channel 9 Monitored Sign (D12-3)

Option

01. A Channel 9 Monitored (D12-3) sign (see Figure 2I-8) may be installed as needed. Official public agencies or their designees may be displayed as the monitoring agency on the sign.

Standard

02. Only official public agencies or their designee shall be displayed as the monitoring agency on the Channel 9 Monitored sign.

§2I.11 EMERGENCY CALL 911 Sign (D12-4)

Option

01. An EMERGENCY CALL 911 (D12-4) sign (see Figure 2I-8) may be used for cellular telephone communications.

Guidance

01b. The (D12-4) sign should be installed as a separate installation in an appropriate location following the Welcome To California (G10B(CA)) sign.

Option

02. The EMERGENCY CALL 9-1-1 (G81-61P(CA)) plaque (refer to Figure 2I-8(CA)) may be placed below all new Unincorporated Community (G9-2(CA)), City Limit (G9-5(CA)) and Jurisdictional boundary I2-1 signs. The G81-61P(CA) may also be placed below the existing G9-2(CA), G9-5(CA) and I2-1 signs when they are changed for other purposes, such as updating population figures. The G81-61P(CA) plaque may be shorter than the G9-2(CA), G9-5(CA) and I2-1 sign panel under which it is placed.

Guidance

03. The G81-61P(CA) plaque should not be longer than the G9-2(CA), G9-5(CA) and I2-1 sign panel under which it is placed.

Standard

The letter size used in the G81-61P(CA) sign shall not exceed that of the words “City Limit” on the G9-5(CA) sign or the words “COUNTY LINE” on the I2-1 sign.

§2I.12 TRAVEL INFO CALL 511 Signs (D12-5 and D12-5a)

Option

01. A TRAVEL INFO CALL 511 (D12-5 or D12-5a) sign (see Figure 2I-8) may be installed if a 511 travel information services telephone number is available to road users for obtaining traffic, public transportation, weather, construction, or road condition information.

02. The pictograph of the transportation agency or the travel information service or program that is providing the travel information may be displayed in place of the 511 pictograph on the D12-5 sign above the TRAVEL INFO CALL 511 legend.

Standard

03. The logo of a commercial entity shall not be incorporated within the TRAVEL INFO CALL 511 signs.

04. If the pictograph of the transportation agency or the travel information service or program is used in place of the 511 pictograph on the D12-5 sign (see Paragraph 2 of this Section), the maximum height of the pictograph shall not exceed the height of the 511 pictograph on the standard sign size specified for the roadway classification in Table 2H-1.

05. The TRAVEL INFO CALL 511 signs shall have a white legend and border on a blue background.

§2I.13 Roadside Assistance Sign (D12-6)

Option

01. A Roadside Assistance (D12-6) sign (see Figure 2I-8) displaying the Highway Assistance cellular telephone code designated for that roadway or jurisdiction may be used along a highway that is served by an authorized roadside assistance program with authorized service vehicles and personnel that provide roadside vehicle repair assistance to road users free of charge.

02. Roadside Assistance Sign (D12-6) may be installed on freeways if a Service Authority for Freeway Emergencies (SAFE) has established a mobile call box program, which is available to road users for obtaining roadside assistance such as tow service.

Standard

03. The pictograph of the SAFE that is providing the roadside assistance or the logo of a commercial entity shall not be incorporated within the sign.

04. The ### shall be replaced with the mobile call number applicable to the SAFE providing the roadside assistance.

05. The Post Mile plaque (SG49dP(CA)) shall be placed below the D12-6 to indicate the county, route, and post mile.

Option

06. A call box identification number (refer to Section 2I.03, Paragraph 72) may be included on the sign for location identification purpose when the sign has been placed at a location where a call box has been removed.

§2I.14 Carpool and Ridesharing Signing (D12-2)

Option

01. In areas having carpool matching services, a Carpool Information (D12-2) sign (see Figure 2I-8) may be provided adjacent to highways with preferential lanes or along any other highway.

02. Carpool Information signs may include an Internet domain name or telephone number of more than four characters within the legend.

Standard

03. If a local transit pictograph or carpool symbol is incorporated into the Carpool Information sign, the maximum vertical dimension of the pictograph or symbol shall not exceed 18 inches and the maximum horizontal dimension shall not exceed 30 inches.

Option

04. The Ridesharing Information (SG19(CA)) sign (refer to Figure 2I-8(CA)) may be placed at selected locations for incoming traffic in urban areas.

05. The Park & Ride Facility Information (SG20(CA)) sign (refer to Figure 2I-8(CA)) may be used to identify park and ride facilities provided for the use of car-poolers and transit users.

Guidance

06. For freeways and expressways, the D12-2, SG19(CA), and SG20(CA) sign locations should be no closer than 10 miles apart.

§2I.15 Signing for Truck Parking Availability (D9-16b through D9-16e)

Option

01. General Service signs may be used to display the number of available truck parking spaces at roadside areas such as rest areas, welcome centers, and weigh stations, and at facilities off a highway that are open to the public and provide parking for commercial vehicles 24 hours per day, 7 days per week.

Standard

02. The Truck Parking Availability General Service (D9-16b through D9-16e) signs (see Figure 2I- 9) shall include a changeable message element with a white changeable legend on a black opaque background that displays only the number of parking spaces currently available at each location or the legend FULL. The upper section of the sign shall display the Truck Parking (D9-16) symbol sign and the legend SPACES OPEN. The sign shall display the number of available truck parking spaces for no more than three parking facilities. Where two lines of legend, such as the location and a distance, are displayed for a parking facility, not more than two parking facilities shall be displayed on the sign.

03. Where the truck parking facility is located off the main highway and is accessed from the crossroad, directional assemblies with the Truck Parking (D9-16) sign shall be installed along the ramp and along crossroads where the route to the facility requires a turn, where it is unclear as to which roadway to follow, or where additional guidance is needed.

Support

04. Displaying the number of parking spaces available at a facility when the number is low could result in truckers choosing to continue to a distant facility that no longer has available space by the time they arrive.

Option

05. The word FULL in a white legend may be displayed on changeable message elements of a Truck Parking Availability General Service sign when the number of truck parking spaces available at the associated facility reaches a predetermined lower threshold.

Guidance

06. Truck Parking Availability signs should be located 3 to 5 miles in advance of the nearest parking facility. The parking facilities displayed on the sign should be no more than 60 miles from the sign location.

Support

07. Examples of uses of Truck Parking Availability signs are shown in Figure 2I-10.

§2I.101(CA) REPORT DRUNK DRIVERS CALL 911 (G81-66(CA)) Sign

Option

01. The REPORT DRUNK DRIVERS CALL 911 (G81-66(CA)) Sign (refer to Figure 2I-8(CA)) may be installed on the roadway for safety enhancement.

§2I.102(CA) PEDESTRIANS PROHIBITED CALL 911 (G81-67(CA)) Sign

Option

When pedestrians are prohibited on the roadway, the PEDESTRIANS PROHIBITED CALL 911 (G81-67(CA)) Sign (refer to Figure 2I-8(CA)) may be installed to report the presence of pedestrians on highways by calling 911 to improve roadway safety.

Figure 2I-1. General Service Signs and Plaques
Figure 2I-1. General Service Signs and Plaques

Signs shown: D9-1, D9-2, D9-3, D9-4, D9-6, D9-6P, D9-7, D9-8, D9-9, D9-10, D9-11, D9-11a, D9-11b, D9-11bP, D9-11c, D9-11d, D9-11e, D9-11f, D9-11g, D9-12, D9-13, D9-13aP, D9-13bP, D9-13cP, D9-13dP, D9-14, D9-16, D9-16aP, D9-20, D9-20aP, D9-21, D9-22

Figure 2I-1(CA). California General Service Signs and Plaques
Figure 2I-1(CA). California General Service Signs and Plaques

Signs shown: G66-21aP(CA), G66-21cP(CA), G66-55(CA), G66-56(CA), G66-56aP(CA), G66-11B(CA), G66-57A(CA), G66-61A(CA)

Figure 2I-2. Example of Next Services Plaque
Figure 2I-2. Example of Next Services Plaque

Signs shown: D9-17P

Figure 2I-3. Examples of General Service Signs with and without Exit Numbering
Figure 2I-3. Examples of General Service Signs with and without Exit Numbering

Signs shown: D9-18, D9-18a, D9-18b, D9-18c, D9-18dP, D9-18eP, D9-18fP

Figure 2I-4. Examples of Interstate Oasis Signs and Plaques
Figure 2I-4. Examples of Interstate Oasis Signs and Plaques

Signs shown: D9-18, D5-12, D5-12aP, D5-12b

Figure 2I-5. Rest Area and Other Roadside Area Signs
Figure 2I-5. Rest Area and Other Roadside Area Signs

Signs shown: D5-1, D5-1a, D5-2, D5-2a, D5-5, D5-6, D5-9, D5-9a, D5-9b, D5-10, D5-10a, D5-10b, D5-11, D5-11a, D5-11b

Figure 2I-5(CA). California Rest Area and Other Roadside Area Signs
Figure 2I-5(CA). California Rest Area and Other Roadside Area Signs

Signs shown: R39-3(CA)

Figure 2I-6. Brake Check Area and Chain-Up Area Signs
Figure 2I-6. Brake Check Area and Chain-Up Area Signs

Signs shown: D5-13, D5-14, D5-15, D5-16

Figure 2I-6(CA). California Brake Check Area and Chain-Up Area BRAKE CHECK AREA
Figure 2I-6(CA). California Brake Check Area and Chain-Up Area BRAKE CHECK AREA

Signs shown: G66-58(CA)

Figure 2I-7. Examples of Tourist Information and Welcome Center Signs
Figure 2I-7. Examples of Tourist Information and Welcome Center Signs

Signs shown: D5-7, D5-7a, D5-8

Figure 2I-7(CA). California Examples of Tourist Information and Welcome Center Signs
Figure 2I-7(CA). California Examples of Tourist Information and Welcome Center Signs

Signs shown: G81-21(CA), G81-24(CA)

To u r i s t I n f o r m a t i o n To u r i s t Information

01. /

Figure 2I-8. Radio, Telephone, and Carpool Information Signs
Figure 2I-8. Radio, Telephone, and Carpool Information Signs

Signs shown: D12-1a, D12-1, D12-1bP, D12-2, D12-3, D12-4, D12-5, D12-5a, D12-6

*The pictograph of the transportation agency or the travel information service or program may be used in place of the 511 pictograph (see Section 2I.12) D12-5a

Figure 2I-8(CA). California Radio, Telephone, and Carpool Information Signs
Figure 2I-8(CA). California Radio, Telephone, and Carpool Information Signs

Signs shown: G81-61P(CA), G81-64aP(CA), G81-65(CA), G81-66(CA), G81-67(CA)

Figure 2I-9. Examples of Truck Parking Availability Signs
Figure 2I-9. Examples of Truck Parking Availability Signs

Signs shown: D9-16b, D9-16c, D9-16d, D9-16e

Figure 2I-10. Examples of Use of Truck Parking Availability Signs
Figure 2I-10. Examples of Use of Truck Parking Availability Signs

Signs shown: D9-16b, D9-16, M5-2P, M6-1P, D9-16d, D9-16e, M5-1P

Table 2I-1. General Service Sign and Plaque Sizes (Sheet 1 of 2)

Sign or PlaqueSign DesignationSectionConventional RoadFreeway or Expressway
Rest Area AdvanceD5-12I.0578 x 36*132 x 60* (F)
114x 48* (E)
Rest Area Advance DirectionD5-1a2I.0578 x 36*132 x 60* (F) 114 x 48* (E)
Rest Area Entrance DirectionD5-22I.0578 x 36*132 x 66* (F)
114 x 60 (E)
Rest Area Gore ****D5-2a2I.0542 x 48*78 x 78* (F) 66 x 72* (E)
Rest Area DirectionalD5-52I.0542 x 48*—
Next Rest AreaD5-62I.0578 x 54*132 x 78* (F) 108 x 66* (E)
Rest Area Tourist Info Center AdvanceD5-72I.0890 x 72*156 x 108* (F)
132 x 96* (E)
Rest Area Tourist Info Center Advance DirectionD5-7a2I.0890 x 72*156 x 108* (F) 132 x 96* (E)
Rest Area Tourist Info CenterD5-82I.0884 x 72*138 x 108* (F)
Entrance Direction120 x 96* (E)
Parking Area AdvanceD5-92I.0596 x 36*162 x 60* (F) 138 x 48* (E)
Parking Area Entrance DirectionD5-9a2I.0596 x 36*162 x 60* (F)
138 x 54* (E)
Parking Area Gore ****D5-9b2I.0562 x 48*108 x 78* (F) 88 x 66* (E)
Picnic Area (Roadside Table, RoadsideD5-102I.0584 x 36*144 x 60* (F)
Park) Advance120 x 48* (E)
Picnic Area (Roadside Table, Roadside Park) Entrance DirectionD5-10a2I.0584 x 36*144 x 60* (F) 120 x 54* (E)
Picnic Area (Roadside Table, RoadsideD5-10b2I.0554 x 48*92 x 78* (F)
Park) Gore ****76 x 66* (E)
Scenic Area (Scenic View, Scenic Overlook) AdvanceD5-112I.0584 x 36*144 x 60* (F) 120 x 48* (E)
Scenic Area (Scenic View, ScenicD5-11a2I.0584 x 36*144 x 60* (F)
Overlook) Entrance Direction120 x 54* (E)
Scenic Area (Scenic View, Scenic Overlook) Gore ****D5-11b2I.0554 x 48*92 x 78* (F) 76 x 66* (E)
Interstate OasisD5-122I.04—198 x 60 (F)
162 x 48 (E)
Interstate Oasis (plaque)D5-12aP2I.04—114 x 48
Interstate Oasis DirectionalD5-12b2I.04—48 x 36
Brake Check Area AdvanceD5-132I.0696 x 54132 x 66
Brake Check Area Entrance DirectionD5-142I.0696 x 54132 x 78
Chain-Up Area AdvanceD5-152I.0772 x 54102 x 66
Chain-Up Area Entrance DirectionD5-162I.0772 x 54102 x 78
TelephoneD9-12I.0224 x 2430 x 30
HospitalD9-22I.0224 x 2430 x 30
CampingD9-32I.0224 x 2430 x 30
Litter ContainerD9-42I.0224 x 3036 x 48
International Symbol of AccessibilityD9-62I.0224 x 2430 x 30
Van Accessible (plaque)D9-6P2I.0218 x 9—
GasD9-72I.0224 x 2430 x 30
FoodD9-82I.0224 x 2430 x 30
LodgingD9-92I.0224 x 2430 x 30
Tourist InformationD9-102I.0224 x 2430 x 30
Diesel FuelD9-112I.0224 x 2430 x 30
Alternative Fuel - Compressed Natural GasD9-11a2I.0224 x 24***30 x 30***
Electric Vehicle ChargingD9-11b2I.0224 x 24***30 x 30***
Electric Vehicle Charging (plaque)D9-11bP2I.0224 x 1830 x 24
Alternative Fuel - EthanolD9-11c2I.0224 x 2430 x 30

Table 2I-1. General Service Sign and Plaque Sizes (Sheet 2 of 2)

Sign or PlaqueSign DesignationSectionConventional RoadFreeway or Expressway
Alternative Fuel - Liquefied Natural GasD9-11d2I.0224 x 24***30 x 30***
Alternative Fuel - Liquefied Petroleum GasD9-11e2I.0224 x 24***30 x 30***
Alternative Fuel - HydrogenD9-11f2I.0224 x 24***30 x 30***
Alternative Fuel - BiofuelD9-11g2I.0224 x 2430 x 30
RV Sanitary StationD9-122I.0224 x 2430 x 30
Emergency Medical ServicesD9-132I.0224 x 2430 x 30
Hospital (plaque)D9-13aP2I.0224 x 1230 x 12
Ambulance Station (plaque)D9-13bP2I.0224 x 1230 x 15
Emergency Medical Care (plaque)D9-13cP2I.0224 x 1830 x 24
Trauma Center (plaque)D9-13dP2I.0224 x 1230 x 15
PoliceD9-142I.0224 x 2430 x 30
Truck ParkingD9-162I.0324 x 2430 x 30
Truck External Power (plaque)D9-16aP2I.0324 x 2430 x 30
Truck Parking Availability - Exit NumberD9-16b2I.15Varies x 144Varies x 144
Truck Parking Availability - DistanceD9-16c2I.15Varies x 144Varies x 144
Truck Parking Availability - Rest AreaD9-16d2I.15Varies x VariesVaries x Varies
Truck Parking Availability - CombinedD9-16e2I.15Varies x VariesVaries x Varies
Next Services Advance (plaque)D9-17P2I.0272 x 24114 x 30
Next EV Charging ****D9-17a2H, 2J—126 x 60
General Services (up to 6 symbols) with Exit NumberD9-182I.03108 x 84132 x 114 (F) 132 x 108 (E)
General Services with Exit NumberD9-18a2I.0372 x 60132 x 108** (F)
102 x 84** (E)
General Services (up to 6 symbols) with Action MessageD9-18b2I.03108 x 84132 x 114 (F) 132 x 108 (E)
General Services with Action MessageD9-18c2I.0372 x 60**132 x 108** (F)
102 x 84** (E)
Rural Interchange General Services (up to 3 symbols) (plaque)D9-18dP2I.03—120 x 36
Rural Interchange General ServicesD9-18eP2I.03—Varies x 24
(1 line) (plaque)
Rural Interchange General Services (2 line) (plaque)D9-18fP2I.03—Varies x 42
PharmacyD9-202I.0224 x 2430 x 30
24-Hour (plaque)D9-20aP2I.0224 x 1230 x 12
Telecommunications Device for the DeafD9-212I.0224 x 2430 x 30
Wireless InternetD9-222I.0224 x 2430 x 30
Radio - Weather InformationD12-12I.0984 x 48132 x 84
Radio - Traffic InformationD12-1a2I.0996 x 48120 x 60
Urgent Message When Flashing (plaque)D12-1bP2I.0984 x 30108 x 36
Carpool InformationD12-22I.1460 x 4296 x 66
Channel 9 MonitoredD12-32I.1084 x 48132 x 84
Emergency Call 911D12-42I.1166 x 3096 x 48
Travel Info Call 511 (pictograph)D12-52I.1248 x 6066 x 72
Travel Info Call 511D12-5a2I.1248 x 3666 x 48
Roadside AssistanceD12-62I.1360 x 4278 x 54

* The size shown is for a sign with a REST AREA, PARKING AREA, PICNIC AREA, SCENIC AREA, and/or TOURIST INFO CENTER legend. The size should be appropriately adjusted if an alternate legend is used.

** The size shown is for a sign with four lines of services. The size should be appropriately adjusted depending on the amount of legend displayed.

*** The Standard Highway Signs publication contains layouts for the 18 x 18-inch and 24 x 24-inch alternative fuels symbol signs mounted with the Alternative Fuels Corridor sign in accordance with Section 2H.14.

**** Refer to FHWA’s List of Known Errors for error in sign. Refer to Section 1A.04 for more details.

Notes: 1. Larger signs may be used when appropriate. 2. Dimensions in inches are shown as width x height 3. Where two sizes are shown, the larger size is for freeways (F) and the smaller size is for expressways (E)

Table 2I-1(CA). California General Service Sign and Plaque Sizes

Sign or PlaqueSign DesignationSectionConventional RoadFreeway or Expressway
Next Right/Left (plaque)G58P(CA)2I.02, 2I.0330 x 2430 x 24
Methanol FuelG66-11B(CA)2I.0324 x 2430 x 30
Distance with Arrow (plaque)G66-21aP(CA)2I.0324 x 1630 x 18
FAST (Header Plaque) (plaque)G66-21cP(CA)2I.0324 x 630 x 8
STAA Truck ServiceG66-55(CA)2I.0324 x 2430 x 30
STAA Truck Terminal AccessG66-56(CA)2I.0324 x 2430 x 30
NEXT EXIT OK (plaque)G66-56aP(CA)2I.0330 x 3030 x 30
Highway PatrolG66-57A(CA)2I.0324 x 2430 x 30
BRAKE CHECK AREAG66-58(CA)2I.06VAR x 36VAR x 42
SheriffG66-61A(CA)2I.0324 x 2430 x 30
NEXT REST (X MILE) (plaque)G79aP(CA)2I.0572 x 12144 x 24
PATROLLED BY HIGHWAY PATROL (plaque)G80bP(CA)2I.0572 x 12144 x 24
TOURIST INFORMATIONG81-21(CA)2I.08144 x 24204 x 30
TOURIST INFORMATIONG81-24(CA)2I.0896 x 42132 x 48
EMERGENCY CALL 9-1-1 (plaque)G81-61P(CA)2I.11VAR x 6VAR x 18
WHEN FLASHING (plaque)G81-64aP(CA)2I.0984 x 12108 x 18
Radio-Recreation InformationG81-65(CA)2I.0984 x 48108 x 66
REPORT DRUNK DRIVERS CALL 911G81-66(CA)2I.101(CA)36 x 3648 x 48
PEDESTRIANS PROHIBITED CALL 911G81-67(CA)2I.102(CA)---72 x 54
ALT FUEL VEHICLE PARKING ONLYR116(CA)2I.0512 x 18---
Ridesharing InformationSG19(CA)2I.1448 x 3072 x 42
Park & Ride Facility InformationSG20(CA)2I.1448 x 3666 x 54
Call BoxSG25(CA)2I.0318 x 2430 x 36
CAL FIRE STATION NEXT RIGHTSG38A(CA)2I.0378 x 30102 x 36
CAL FIRE STATION with ArrowSG39A(CA)2I.0348 x 2160 x 30
END CALL BOXESSG41(CA)2I.0336 x 3648 x 48
CALIFORNIA WELCOME CENTER X MILESSG47A(CA)2I.0866 x 48108 x 66
CALIFORNIA WELCOME CENTER NEXT RIGHTSG47B(CA)2I.0866 x 48108 x 66
CALIFORNIA WELCOME CENTER with ArrowSG47C(CA)2I.0842 x 2454 x 30
CALIFORNIA WELCOME CENTER X MILES with ArrowSG47D(CA)2I.0842 x 2854 x 36
Rest Area/Vista Point 8 HOUR PARKINGS23(CA)2B.52, 2I.0524 x 24---
NO SOLICITINGS24(CA)2I.0524 x 18---
Highway Patrol PARKING ONLYS34(CA)2I.0512 x 18---
10 HOUR PARKING COMMERCIAL MOTOR VEHICLESR39-3(CA)2B.52, 2I.0524 x 18---

--12 x 18 --72 x 42