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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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Changing light bulbs on overhead signs

Maine DOT does not use lighted overhead signing. They would close a lane to do maintenance on the overhead signs themselves, but perhaps that would normally be a longer-term closure than would be … [Read more...] about Changing light bulbs on overhead signs

Center lane closure

Hawaii DOT has used center lane closure on low-speed roadways, but does not recommend it on high-speed facilities. The cones or delineators situated between the two lanes at the beginning and end of … [Read more...] about Center lane closure

Center lane closure

Illinois typically uses Design Standards 701400 and 701446 to divert three lanes of traffic into one. If there is not a time of day when traffic volumes would allow a single lane open, the shoulder … [Read more...] about Center lane closure

Center lane closure

Ohio DOT would use a two-lane shift operation for long-term construction, removing conflicting pavement markings and placing temporary pavement markings. For a short-term paving operation, ODOT would … [Read more...] about Center lane closure

Center lane closure

Vermont has no multi-lane freeways or arterials. I agree with Hawaii's concern about the cone-line between the two travel lanes. … [Read more...] about Center lane closure

Center lane closure

Colorado uses a slightly modified version of MUTCD TA-38 (see the web site below). … [Read more...] about Center lane closure

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American Road and Transportation Builders Association Transportation Development Foundation, American Road and Transportation Builders Association U.S. Department of Transportation Federal Highway Administration Texas A&M Transportation Institute