Impacts of Emergency Traffic Patrol Lights on Human Perception

The overall goal of the project is to understand how color, intensity and other features of Emergency Traffic Patrol (ETP) lights affect human perception and thus to provide recommendations on improvement of warning light systems. The research team will perform empirical experiments to address the following specific aims based on the weather and traffic conditions in Maryland. Aim 1. Characterize the relationships between color, intensity and flash pattern of warning lights and human perception-reaction time (PRT) under a variety of traffic environments. Aim 2. Identify light patterns that minimize the interferences caused by bright warning light. Aim 3. Optimize warning light system with an ambient light detector.

Language

• English

Project

• Status: Completed
• Sponsor Organizations:

  Maryland Department of Transportation State Highway Administration

  707 North Calvert Street
  Baltimore, MD  United States  21202
• Project Managers:

  Xiang, Hua

• Performing Organizations:

  Morgan State University

  1700 E. Cold Spring Lane
  Baltimore, MD 21251, Maryland  United States  21251
• Principal Investigators:

  Li, Yuejin

• Start Date: 20190110
• Expected Completion Date: 20210331
• Actual Completion Date: 20210331

Subject/Index Terms

• TRT Terms: Brightness; Color; Emergency vehicles; Optimization; Perception; Reaction time; Warning systems
• Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 01698878
• Record Type: Research project
• Source Agency: Maryland State Highway Administration
• Files: RIP, STATEDOT
• Created Date: Mar 15 2019 2:03PM