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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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Publication

Evaluation of Work Zone Traffic Control Enhancements

Author/Presenter: Gent, Steve J.; Gerken, Jeff
Abstract:

In an attempt to improve work zone safety, the Iowa Department of Transportation (DOT) initiated a research project to determine the overall effectiveness, including functionality, of several proposed work zone traffic control devices. These devices included: portable rumble strips, flashing STOP/SLOW paddles, BE PREPARED TO STOP signs with fluorescent orange sheeting, orange flags, amber strobe lights, fluorescent yellow-green flagger vests, and additional flagger. The research project began in June of 1995 and ended in July of 1996. The research was conducted in two phases with the first phase using asphalt paving operations and the second phase using Iowa DOT maintenance operations. Motorist survey cards and Iowa DOT employee questionnaires were the primary measures of effectiveness in phases 1 and 2 respectively.

Publisher: Iowa Department of Transportation
Publication Date: December 1996
Notes: The clearinghouse has a copy of this item.
Publication Types: Books, Reports, Papers, and Research Articles
Topics: Evaluation and Assessment; Traffic Control Devices

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