Chapter 6G. TTC Zone Regulatory Signs¶
§6G.01 Regulatory Sign Authority¶
Support
01. Regulatory signs such as those shown in Figure 6G-1 inform road users of traffic laws or regulations and indicate the applicability of legal requirements that would not otherwise be apparent.
Standard
02. Regulatory signs shall be authorized by the public agency or official having jurisdiction and shall conform with Chapter 2B.
§6G.02 Regulatory Sign Design and Size¶
Standard
01. TTC regulatory signs shall comply with the Standards for regulatory signs presented in Part 2 and in the FHWA’s “Standard Highway Signs” publication (see Section 1A.05).
02. The sizes for TTC regulatory signs shall be as shown in Table 6G-1.
§6G.03 Regulatory Sign Applications¶
Standard
01. If a TTC zone requires regulatory measures different from those existing, the existing permanent regulatory devices shall be removed or covered and superseded by the appropriate temporary regulatory signs. This change shall be made in compliance with applicable ordinances or statutes of the jurisdiction.
§6G.04 Road Closed Signs (R11-2 Series)¶
Ohio-modified
Ohio amends this section per the Ohio Supplement to the MUTCD, 11th Edition (effective January 16, 2026). The National MUTCD text is shown above; below is Ohio's amended text, as published in the supplement (deletions removed, additions kept).
Supplement directives: - The Ohio Supplement replaces Section 6G.04 of the National MUTCD in its entirety; the amended text is shown below. - The Ohio Supplement also replaces Figure 6G-1 (see the supplement PDF for the revised artwork).
Guidance: 01. The ROAD CLOSED (R11-2) sign (see Figure 6G-1) should be used when the roadway is closed to all road users except contractors’ equipment or officially authorized vehicles. The R11-2 sign should be accompanied by appropriate warning and detour signing.
Option: 02. STREET CLOSED (R11-2a), BRIDGE OUT (R11-2b), or PATH CLOSED (R11-2c) signs may be substituted for Road Closed signs where applicable.
Guidance: 03. Road Closed signs should be installed at or near the center of the roadway on or above a Type 3 Barricade that closes the roadway (see Section 6K.07).
Standard: 04. Road Closed signs shall not be used where road user flow is maintained through the TTC zone with a reduced number of lanes on the existing roadway or where the actual closure is some distance beyond the sign. Page OH Part 6-7 04a Based on ORC 4511.714, when a determination has been made to close a road in response to high water conditions, the ROAD CLOSED HIGH WATER MAX FINE $2000 (R11-H4a) sign should be installed. [ORC 4511.714] 04b For temporary traffic control due to high water, see Chapter 6O and Section 2B.63. Page OH Part 6-8
Guidance: 1. R2-6P R2-6aP R2-6bP R2-10 R2-11 R-2-12 R3-1 AS--2 ~ MUST DO PASS [!l]~ I CARE PASS ~ R3-18 RJ-.27 A4•2 A4•7 ··1 LANE STAY IN I, POINT WAY A5•1a rt oNEWAYI l!lil r lnro tioo oo plic tio al lg peciric Sign5 sea sec ·oo re1ererg far :applic.a ion of ll}'e§e signs Page OH Part 6-9
10. LOCAL TRAfflC ONLY '= R10-6 R11·2 Rl1•2c R11-3 TURN Off THRU TRAFFIC TONS 5TONS ' CELL PHONE 0,, WORK ZONE I .... ~
3.
5. HIGH WATER CAUSE DEATH 6.+. .A.X.LE S 24T MAX FINE $2,000 40T R11-H4a R11-H5a R12-H6 2B.63 6G.08 28.64 Note: See Chapter 28 for information on the application of these signs. For Ohio Specific Signs see section reference for application of these signs.
Guidance
01. The ROAD CLOSED (R11-2) sign (see Figure 6G-1) should be used when the roadway is closed to all road users except contractors’ equipment or officially authorized vehicles. The R11-2 sign should be accompanied by appropriate warning and detour signing.
Option
02. STREET CLOSED (R11-2a), BRIDGE OUT (R11-2b), or PATH CLOSED (R11-2c) signs may be substituted for Road Closed signs where applicable.
Guidance
03. Road Closed signs should be installed at or near the center of the roadway on or above a Type 3 Barricade that closes the roadway (see Section 6K.07).
Standard
04. Road Closed signs shall not be used where road user flow is maintained through the TTC zone with a reduced number of lanes on the existing roadway or where the actual closure is some distance beyond the sign.
§6G.05 Local Traffic Only Signs (R11-3 Series and R11-4)¶
Guidance
01. The Local Traffic Only signs (see Figure 6G-1) should be used where road users follow detours to avoid a closure some distance beyond the sign, but where local road users can use the roadway to the point of closure. These signs should be accompanied by appropriate warning and detour signing.
02. In rural applications, the Local Traffic Only sign should have the legend ROAD CLOSED XX MILES AHEAD,
Option
03. In urban areas, a ROAD (STREET) CLOSED TO THRU TRAFFIC (R11-4) sign or the legend ROAD CLOSED, LOCAL TRAFFIC ONLY may be used.
04. In urban areas, a word message that includes the name of an intersecting street name or well-known destination may be substituted for the words XX MILES AHEAD on the R11-3 sign where applicable.
05. A STREET CLOSED (R11-3a) or BRIDGE OUT (R11-3b) sign may be substituted for an R11-3 sign, where applicable.
06. The words BRIDGE OUT, BRIDGE CLOSED, or STREET CLOSED may be substituted for the words ROAD CLOSED on the R11-4 sign where applicable.
Signs shown: G20-5aP, R1-1, R1-2, R1-2aP, R1-7, R1-7a, R1-8, R2-1, R2-6P, R2-6aP, R2-6bP, R2-10, R2-11, R2-12, R3-1, R3-2, R3-3, R3-4, R3-5, R3-6, R3-7, R3-8, R3-18, R3-27, R4-1, R4-2, R4-7, R4-7c, R4-9, R4-9a, R5-1, R5-1a, R6-1, R6-2, R8-3
in Temporary Traffic Control Zones (Sheet 1 of 2) R1-2aP R1-7a G20-5aP R2-6aP R2-6bP R4-9a R4-7c R5-1a Note: See Chapter 2B for information on the application of these signs.
Signs shown: R9-8, R9-9, R9-10, R9-11, R9-11a, R9-12, R9-20, R10-6, R11-2, R11-2c, R11-3, R11-4, R12-1, R12-2, R12-5, R22-2
in Temporary Traffic Control Zones (Sheet 2 of 2) R9-11a R11-2c Note: See Chapter 2B for information on the application of these signs.
§6G.06 Weight Limit Signs (R12-1, R12-2, and R12-5)¶
Ohio-modified
Ohio amends this section per the Ohio Supplement to the MUTCD, 11th Edition (effective January 16, 2026). The National MUTCD text is shown above; below is Ohio's amended text, as published in the supplement (deletions removed, additions kept).
Supplement directive: - The Ohio Supplement replaces Section 6G.06 of the National MUTCD in its entirety; the amended text is shown below.
Standard: 01. A Weight Limit sign (see Figure 6G-1), which shows the gross weight or axle weight that is permitted on the roadway or bridge, shall be consistent with State or local regulations and shall not be installed without the approval of the authority having jurisdiction over the highway.
02. When weight restrictions are imposed because of the activity in a TTC zone, a marked detour shall be provided for vehicles weighing more than the posted limit.
Standard
01. A Weight Limit sign (see Figure 6G-1), which shows the gross weight or axle weight that is permitted on the roadway or bridge, shall be consistent with State or local regulations and shall not be installed without the approval of the authority having jurisdiction over the highway.
02. When weight restrictions are imposed because of the activity in a TTC zone, a marked detour shall be provided for vehicles weighing more than the posted limit.
§6G.07 STAY IN LANE Signs (R4-9 and R4-9a)¶
Option
01. A STAY IN LANE (R4-9) sign (see Figure 6G-1) may be used where a multi-lane shift has been incorporated as part of the TTC on a highway to direct road users around road work that occupies part of the roadway on a multi-lane highway.
Guidance
02. A STAY IN LANE TO MERGE POINT (R4-9a) sign (see Figure 6G-1) should be used during late merge operations (see Section 6N.19) to direct traffic to use all available lanes until the merge point is reached.
§6G.08 Work Zone and Higher Fines Signs and Plaques¶
Ohio-modified
Ohio amends this section per the Ohio Supplement to the MUTCD, 11th Edition (effective January 16, 2026). The National MUTCD text is shown above; below is Ohio's amended text, as published in the supplement (deletions removed, additions kept).
Supplement directives: - The Ohio Supplement replaces Section 6G.08 of the National MUTCD in its entirety; the amended text is shown below. - The Ohio Supplement also replaces Figure 6H-1 (see the supplement PDF for the revised artwork).
Option: 01. A WORK ZONE (G20-5aP) plaque (see Figure 6G-1) may be mounted above a Speed Limit sign to emphasize that a reduced speed limit is in effect within a TTC zone. An END WORK ZONE SPEED Page OH Part 6-10 LIMIT (R2-12) sign (see Figure 6G-1) may be installed at the downstream end of the reduced speed limit zone.
Guidance: 02. A BEGIN HIGHER FINES ZONE (R2-10) sign (see Figure 6G-1) should be installed at or near the beginning of a TTC zone where increased fines are imposed for traffic violations, and an END HIGHER FINES ZONE (R2-11) sign (see Figure 6G-1) should be installed at or near the downstream end of the TTC zone. 02a See 6G.08, P05a through P05d for Ohio specific higher fines sign information for TTC zone use on State, County, and Township routes.
Option: 03. Alternate legends such as BEGIN (or END) DOUBLE FINES ZONE may also be used for the R2-10 and R2-11 signs.
04. A FINES HIGHER, FINES DOUBLE, or $XX FINE plaque (see Section 2B.25 and Figure 6G-1) may be mounted below the Speed Limit sign if increased fines are imposed for traffic violations within the TTC zone.
05. Individual signs and plaques for work zone speed limits and higher fines may be combined into a single sign or may be displayed as an assembly of signs and plaques. 05a ORC Section 5501.27(A)(1) requires that the Director of Transportation “adopt rules governing the posting of signs advising motorists that increased penalties apply for certain traffic violations on streets or highways in a construction zone.” Also, ORC Section 5501.27(A)(2) requires that the Director adopt “rules governing the posting of signs to be used pursuant to section 2903.081 of the Revised Code giving notice to motorists of the prohibitions set forth in sections 2903.06 and 2903.08 of the Revised Code regarding the death of or injury to any person in a construction zone as a proximate result of a reckless operation offense or speeding offense.” [ORC 2903.06] [ORC 2903.08] [ORC 2903.081] [ORC 5501.27] 05b In accordance with ORC Section 4511.98, the “director of transportation, board of county commissioners, or board of township trustees shall cause signs to be erected advising motorists that increased penalties apply for certain traffic violations occurring on streets or highways in a construction zone. The increased penalties shall be effective only when signs are erected in accordance with the guidelines and design specifications established by the director under section 5501.27 of the Revised Code, and when a violation occurs during hours of actual work within the construction zone.” [ORC 4511.98] [ORC 5501.27] 05c The Work Zone Increased Penalties (R11-H5a) sign shall be used to meet requirements described in Paragraph 05b of this section. 05d The guidelines established by the Director are in Part 6 of the ODOT Traffic Engineering Manual (TEM) and in Chapter 5501:2-10 of the Ohio Administrative Code (OAC). Administrative Code Section 5501:2-10-02 also requires that each agency adopt procedures pertaining to requiring a contractor, work crew, or utility to erect, maintain, and remove signs, in conformance with these guidelines. [OAC 5501:2- 10] Page OH Part 6-11 Chapter 6H – TTC Zone Warning Signs
Support: 7. ES WS-2 W6-3 W7-1 W7-JaP WS- Note: SeeChapli 2Ctor~. -~a l ll1ese ~ For Ol'liia Specific: Signs see section reference far epplice1ion of these signs. Page OH Part 6-12
2. ERGE HERE TAKE • 12- 3-1P al e for applical!oo of these signs. Page OH Part 6-13
Option
01. A WORK ZONE (G20-5aP) plaque (see Figure 6G-1) may be mounted above a Speed Limit sign to emphasize that a reduced speed limit is in effect within a TTC zone. An END WORK ZONE SPEED LIMIT (R2-12) sign (see Figure 6G-1) may be installed at the downstream end of the reduced speed limit zone.
Guidance
02. A BEGIN HIGHER FINES ZONE (R2-10) sign (see Figure 6G-1) should be installed at or near the beginning of a TTC zone where increased fines are imposed for traffic violations, and an END HIGHER FINES ZONE (R2-11) sign (see Figure 6G-1) should be installed at or near the downstream end of the TTC zone.
Table 6G-1. Temporary Traffic Control Zone Regulatory Sign and Plaque Sizes
| Sign or Plaque | Sign Designation | Section | Conventional Road | Freeway or Expressway | Minimum |
|---|---|---|---|---|---|
| Stop | R1-1 | 6G.02 | 30 x 30* | — | — |
| Stop (on Stop/Slow Paddle) | R1-1 | 6D.02 | 18 x 18 | — | — |
| Yield | R1-2 | 6G.02 | 36 x 36 x 36* | — | 30 x 30 x 30 |
| To Oncoming Traffic (plaque) | R1-2aP | 6G.02 | 36 x 30 | 48 x 36 | 24 x 18 |
| Wait on Stop | R1-7 | 6L.03 | 24 x 30 | 24 x 30 | — |
| Wait on Stop - Go on Slow | R1-7a | 6L.03 | 30 x 36 | 30 x 36 | — |
| Go on Slow | R1-8 | 6L.03 | 24 x 30 | 24 x 30 | — |
| Speed Limit | R2-1 | 6G.08 | 24 x 30* | 36 x 48 | — |
| Fines Higher (plaque) | R2-6P | 6G.08 | 24 x 18 | 36 x 24 | — |
| Fines Double (plaque) | R2-6aP | 6G.08 | 24 x 18 | 36 x 24 | — |
| $XX Fine (plaque) | R2-6bP | 6G.08 | 24 x 18 | 36 x 24 | — |
| Begin Higher Fines Zone | R2-10 | 6G.08 | 24 x 30 | 36 x 48 | — |
| End Higher Fines Zone | R2-11 | 6G.08 | 24 x 30 | 36 x 48 | — |
| End Work Zone Speed Limit | R2-12 | 6G.08 | 24 x 36 | 36 x 54 | — |
| Movement Prohibition | R3-1,2,3,4 | 6G.02 | 24 x 24* | 36 x 36 | — |
| Mandatory Movement Lane Control - Turn Only | R3-5 | 6G.02 | 30 x 36 | — | — |
| Optional Movement Lane Control - Thru and Turn | R3-6 | 6G.02 | 30 x 36 | — | — |
| Right (Left) Lane Must Turn Right (Left) | R3-7 | 6G.02 | 30 x 30* | — | — |
| Advance Intersection Lane Control (2 lanes) | R3-8 | 6G.02 | 30 x 30 | — | — |
| Movement Prohibition - No U or Left Turn | R3-18 | 6G.02 | 24 x 24* | 36 x 36 | — |
| Movement Prohibition - No Straight Through | R3-27 | 6G.02 | 24 x 24* | 36 x 36 | — |
| Do Not Pass | R4-1 | 6G.02 | 24 x 30 | 36 x 48 | — |
| Pass With Care | R4-2 | 6G.02 | 24 x 30 | 36 x 48 | — |
| Keep Right | R4-7 | 6G.02 | 24 x 30 | 36 x 48 | — |
| Narrow Keep Right | R4-7c | 6G.02 | 18 x 30 | — | — |
| Stay in Lane | R4-9 | 6G.07 | 24 x 30 | 36 x 48 | — |
| Stay In Lane To Merge Point | R4-9a | 6G.07 | 36 x 48 | 36 x 48 | — |
| Do Not Enter | R5-1 | 6G.02 | 30 x 30* | 36 x 36 | — |
| Wrong Way | R5-1a | 6G.02 | 36 x 24* | 42 x 30 | — |
| One Way | R6-1 | 6G.02 | 36 x 12* | 48 x 18 | — |
| One Way | R6-2 | 6G.02 | 24 x 30* | 36 x 48 | — |
| No Parking (symbol) | R8-3 | 6G.02 | 24 x 24* | 36 x 36 | — |
| Pedestrian Crosswalk | R9-8 | 6G.09 | 36 x 18 | — | — |
| Sidewalk Closed | R9-9 | 6G.10 | 24 x 12 | — | — |
| Sidewalk Closed, Use Other Side | R9-10 | 6G.10 | 24 x 12 | — | — |
| Sidewalk Closed Ahead, Cross Here | R9-11 | 6G.10 | 24 x 18 | — | — |
| Sidewalk Closed, Cross Here | R9-11a | 6G.10 | 24 x 12 | — | — |
| Bike Lane Closed | R9-12 | 6P.01 | 24 x 12 | — | — |
| Stop Here on Red | R10-6 | 6L.04 | 24 x 36 | — | — |
| Road Closed | R11-2, 2a, 2b, 2c | 6G.04 | 48 x 30 | — | — |
| Road Closed - Local Traffic Only | R11-3, 3a, 3b, 4 | 6G.05 | 60 x 30 | — | — |
| Weight Limit | R12-1, 2 | 6G.06 | 24 x 30 | 36 x 48 | — |
| Weight Limit | R12-5 | 6G.06 | 24 x 36 | 36 x 48 | — |
| Turn Off 2-Way Radio and Cell Phone | R22-2 | 6G.11 | 42 x 36 | 42 x 36 | — |
| Work Zone (plaque) | G20-5aP | 6G.08 | 24 x 18 | 30 x 24 | — |
* See Table 2B-1 for minimum size required for signs facing traffic on multi-lane conventional roads Notes: 1. Larger signs may be used wherever necessary for greater legibility or emphasis 2. Dimensions are shown in inches and are shown as width x height
Notes:
- 1. Larger signs may be used wherever necessary for greater legibility or emphasis
- 2. Dimensions are shown in inches and are shown as width x height
Option
03. Alternate legends such as BEGIN (or END) DOUBLE FINES ZONE may also be used for the R2-10 and R2-11 signs.
04. A FINES HIGHER, FINES DOUBLE, or $XX FINE plaque (see Section 2B.25 and Figure 6G-1) may be mounted below the Speed Limit sign if increased fines are imposed for traffic violations within the TTC zone.
05. Individual signs and plaques for work zone speed limits and higher fines may be combined into a single sign or may be displayed as an assembly of signs and plaques.
§6G.09 PEDESTRIAN CROSSWALK Sign (R9-8)¶
Option
01. The PEDESTRIAN CROSSWALK (R9-8) sign (see Figure 6G-1) may be used to indicate where a temporary crosswalk has been established.
Standard
02. If a temporary crosswalk is established, it shall be accessible to pedestrians with disabilities in accordance with Section 6C.03.
§6G.10 SIDEWALK CLOSED Signs (R9-9, R9-10, R9-11, and R9-11a)¶
Guidance
01. SIDEWALK CLOSED signs (see Figure 6G-1) should be used where pedestrian flow is restricted. Bicyclist/ Pedestrian Detour (M4-9a) signs or Pedestrian Detour (M4-9b) signs should be used where pedestrian flow is rerouted (see Section 6I.02).
02. The SIDEWALK CLOSED (R9-9) sign should be installed at the beginning of the closed sidewalk, at the intersections preceding the closed sidewalk, and elsewhere along the closed sidewalk as needed.
03. The SIDEWALK CLOSED, (ARROW) USE OTHER SIDE (R9-10) sign should be installed at the beginning of the restricted sidewalk when a parallel sidewalk exists on the other side of the roadway.
04. The SIDEWALK CLOSED AHEAD, (ARROW) CROSS HERE (R9-11) sign should be used to indicate to pedestrians that sidewalks beyond the sign are closed and to direct them to open crosswalks, sidewalks, or other travel paths.
05. The SIDEWALK CLOSED, (ARROW) CROSS HERE (R9-11a) sign should be installed just beyond the point to which pedestrians are being redirected.
Support
06. These signs are typically mounted on a detectable barricade to encourage compliance and to communicate with pedestrians that the sidewalk is closed. Printed signs are not useful to many pedestrians with vision disabilities. A barrier or barricade detectable by a person with a vision disability is sufficient to indicate that a sidewalk is closed. If the barrier is continuous with detectable channelizing devices for an alternate route, accessible signing might not be necessary.
§6G.11 TURN OFF 2-WAY RADIO AND CELL PHONE Sign (R22-2)¶
Standard
01. The TURN OFF 2-WAY RADIO AND CELL PHONE (R22-2) sign (see Figure 6G-1) shall be used to require road users to turn off mobile radio transmitters and cellular telephones where blasting operations occur.
Support
02. Section 6H.25 contains information about the full sequence of signs for blasting zones and the specific requirements for location of this regulatory sign.
§6G.12 Other Regulatory Signs¶
Option
01. Regulatory word message signs other than those classified and specified in this Manual and the “Standard Highways Signs” publication (see Section 1A.05) may be developed and used based on engineering judgment to aid the enforcement of other laws or regulations in TTC zones.
Guidance
02. Special regulatory signs should comply with the general requirements of color, shape, and alphabet size and series. The sign message should be brief, legible, and clear.