• Skip to primary navigation
  • Skip to main content
Logo

Work Zone Safety Information Clearinghouse

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

  • About
  • Newsletter
  • Contact
  • X
  • Facebook
  • LinkedIn
  • Work Zone Data
    • At a Glance
    • National & State Traffic Data
    • Work Zone Traffic Crash Trends and Statistics
    • Worker Fatalities and Injuries at Road Construction Sites
  • Topics of Interest
    • Commercial Motor Vehicle Safety
    • Smart Work Zones
    • Work Zone Safety and MobilityTransportation Management Plans
    • Accommodating Pedestrians
    • Worker Safety and Welfare
    • Project Coordination in Work Zones
  • Training
    • Online Courses
    • FHWA Safety Grant Products
    • Toolboxes
    • Flagger
    • Certification and
      Accreditation
  • Work Zone Devices
  • Laws, Standards & Policies
  • Public Awareness
  • About
  • Events
  • Contact
  • Search
Publication

Speed Control Through Work Zones: Techniques Evaluation and Implementation Guidelines

Author/Presenter: Noel, Errol C.; Dudek, Conrad L.; Pendleton, Olga J.; McGee, Hugh W.; Sabra, Ziad A.
Abstract:

This report presents the implementation and evaluation of four techniques for improving the effectiveness of speed zoning in construction areas on multilane freeways. The techniques are (a) the flagging procedure of the Manual On Uniform Traffic Control Devices (MUTCD), (b) the use of the MUTCD flagging procedure as well as motioning motorists to slow and pointing at a nearby speed limit sign with the free hand of the flagger, (c) a marked police car with cruiser lights and radar active, and (d) a uniformed police officer standing to control traffic. Each of the techniques were applied continuously on six-lane freeways for a period of 10-15 days. The results of the analysis indicate that all four techniques can derive significant reduction in traffic speed through highway construction zones. The flagging methods were effective in construction areas where one lane remained open to traffic. The law enforcement methods demonstrated a stronger speed reduction capability, particularly when the lane closures result in two or more lanes open. The construction projects used for the field data collection required speed reduction from the regulatory 55 m.p.h. to an advisory 45 m.p.h. Although the law enforcement techniques were determined to be effective, their implementation requires a high degree of administrative coordination and cooperation involving police departments, highway officials and construction contractors. A User Guide on speed control in work zones is provided in Appendix B.

Publisher: Federal Highway Administration, Turner-Fairbank Highway Research Center
Publication Date: February 1987
Full Text URL: Link to URL
Publication Types: Books, Reports, Papers, and Research Articles
Topics: Speed Control; Temporary Traffic Control

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
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