MUTCD/Ohio
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The Ohio Manual of Uniform Traffic Control Devices (OMUTCD) is the standard for road signs, signals, and markings in the U.S. state of Ohio. It is developed by the Ohio Department of Transportation "in substantial conformance to" the national MUTCD developed by the Federal Highway Administration.
The OMUTCD defines the content and placement of road signs. Design specifications are detailed in a separate document, the Sign Designs & Markings Manual (SDMM), which mirrors the national Standard Highway Signs and Markings document. The final edition of the OMUTCD, published in 2012, will be discontinued by 2026. The SDMM has been revised several times, most recently on July 19, 2024 (as of July 2024).
Usage in OpenStreetMap
A traffic sign specific to the OMUTCD is mapped as a 
node tagged traffic_sign=US:OH:Z1-2, where "US:OH" is the state's ISO 3166 code and Z1-2 is the sign's alphanumeric designation.
Sign designations
Each standard sign or plaque in the OMUTCD and SDMM is assigned an alphanumeric designation and organized by series. A sign designation follows the same format as in the national MUTCD and SHSD; however, the sign designation for a state-specific sign includes an "H" before the sign number.
| Category | Series | Sign | Variant | Position | Orientation | |
|---|---|---|---|---|---|---|
| R | 12 | - | H7 | a | P | |
| Regulatory | Weight Limits | Emergency Vehicle Weight Limit | Single Axle and Tandem | Plaque | Normal |
Signs by series
- Main article: MUTCD#Signs by series
The following pages contain a correspondence between OMUTCD-specific signs and their most likely tagging in OpenStreetMap:
- Series D – Directional Signs
- Series E – Exit Signs
- Series G – Work Zone
- Series I – Information Signs
- Series M – Marker Signs
- Series R – Regulatory Signs
- Series S – School Area Signs
- Series W – Warning Signs
including:
- Work Zone
- Work Zone
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