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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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Iowa

Application of types of temporary/removable pavement marking material and special linestriping material

In Iowa, the standard temporary and permanent work zone markings have been waterborne paint. The state uses temporary tapes on diagonal temporary lines where these lines go across the final or UAC … [Read more...] about Application of types of temporary/removable pavement marking material and special linestriping material

Use of flashing stop/slow paddle

Iowa has improved highway work zone safety by outfitting its work crews with flashing stop/slow paddles. Iowa DOT purchased 75 flashing stop/slow paddles and distributed them to flaggers throughout … [Read more...] about Use of flashing stop/slow paddle

Signing for the end of work zone

See Iowa's Standard Road Plans below for the signing for the end of work zone: Standard Road Plan 1 Standard Road Plan 2 Standard Road Plan 3 Standard Road Plan 4 … [Read more...] about Signing for the end of work zone

Lane lines in work zones

For standard applications, Iowa DOT's typical lane line width is 4 inches. In work zones, IDOT uses 8 inch wide lines in shift and merge areas. The decision to implement wider lane lines is based on … [Read more...] about Lane lines in work zones

Time frame allowed for lane closure setup (e.g., 9:00am to 3:30pm)

Iowa general specifications state that no work can be done during hours of darkness (30 minutes before sunset to 30 minutes after sunrise.) … [Read more...] about Time frame allowed for lane closure setup (e.g., 9:00am to 3:30pm)

Personal protective equipment requirements

See the Policies and Procedures Manual at the given website for Iowa DOT's PPE requirements. … [Read more...] about Personal protective equipment requirements

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Copyright © 2023 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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