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Work Zone Safety Information Clearinghouse

Library of Resources to Improve Roadway Work Zone Safety for All Roadway Users

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Communication and Control

Work zone speed limit

In Oregon: Speed reductions are typically approved for traffic restrictions that remove recovery areas such as shoulder, narrow lanes below minimum standards; areas where equipment and workers are … [Read more...] about Work zone speed limit

Work zone speed limit

See the Construction Manual Section, 5.42 TEMPORARY WORK ZONE SPEED LIMITS on the web site below. … [Read more...] about Work zone speed limit

Placement of G20-1 signs

MUTCD subsection 6F-1 c.(2) states that the G20-1 sign "...should be used in advance of any temporary traffic control zone of more than 2 miles in length," and subsection 6C-2 says "The temporary … [Read more...] about Placement of G20-1 signs

Placement of G20-1 signs

In New York, relative placement of the W20-1 and G20-1 signs depends on actual conditions, and varies project to project. The G20-1 is typically placed near the project limits, but location must be … [Read more...] about Placement of G20-1 signs

Placement of G20-1 signs

In Wisconsin the G20-1 sign is usually placed at or near the beginning of the actual construction, so there would be one or more W20-1 signs in advance of the G20-1. … [Read more...] about Placement of G20-1 signs

Placement of G20-1 signs

Wording in the Ohio MUTCD was revised from "shall" to "should" in erecting G20-1 signs at the limits of any major construction project. Therefore, in Ohio you will see this sign at times placed in … [Read more...] about Placement of G20-1 signs

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Copyright © 2025 American Road & Transportation Builders Association (ARTBA). The National Work Zone Safety Information Clearinghouse is a project of the ARTBA Transportation Development Foundation. It is operated in cooperation with the U.S. Federal Highway Administration and Texas A&M Transportation Institute. | Copyright Statement · Privacy Policy · Disclaimer
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