AZ Interstate Median Safety and Crossover Crash Analysis Study

Although the Manual on Uniform Traffic Control Devices (MUTCD) does not require the use of warning lights on channelization devices, the Arizona Department of Transportation (ADOT) has historically required their use on all traffic control devices used at nighttime construction zones. This report documents research done for ADOT on the use of steady-burn warning lights on vertical panels in roadway construction zones. Specific tasks included a review of the requirements and policies of the departments of transportation of other states regarding the use of flashing warning lights on traffic control devices, a review of ADOT’s construction zone requirements, a search for relevant research, reviews of construction zone accident reports and incident logs, and interviews with ADOT field construction staff regarding the past performance of the Ultra Panels (Type III sheeting) with and without steady-burn warning lights.

Language

• English

Project

• Status: Active
• Funding: $251,760
• Contract Numbers:

  SPR-784

• Sponsor Organizations:

  Arizona Department of Transportation Research Center

  206 S. 17th Avenue
  ADOT Research Center
  Phoenix, AZ  United States  85007
• Project Managers:

  Stone, Bill

• Performing Organizations:

  Volpe National Transportation Systems Center

  Transportation Planning Division
  55 Broadway
  Cambridge, MA  United States  02142-1093
• Start Date: 20220503
• Expected Completion Date: 20230630
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Crash analysis; Flashing beacons; Nighttime crashes; Traffic control devices; Warning signals; Work zone safety; Work zone traffic control
• Identifier Terms: Arizona Department of Transportation
• Geographic Terms: Arizona
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 01850657
• Record Type: Research project
• Source Agency: Arizona Department of Transportation
• Contract Numbers: SPR-784
• Files: RIP, STATEDOT
• Created Date: Jun 29 2022 4:17PM