Freeway Traffic Safety and Efficiency Enhancement through Adaptive Roadway Lighting and Control Enabled by Connected Sensor and Infrastructure Networks

Roadway safety and efficiency are adversely affected by bad weather conditions and environmental factors such as inappropriate lighting, sun glare, etc. Recent studies have found that uniform roadway lighting does not necessarily make a roadway safer. Instead, adaptive lighting based on roadway, traffic, environmental, and weather conditions is likely to achieve better safety, efficiency, and energy conservation benefits than conventional lighting schemes. Although the benefits of combining adaptive lighting and active traffic management (a control strategy demonstrated effective in reducing crashes and enhancing vehicle throughput) may seem obvious, very little research has been done along this line. The Federal Highway Administration (FHWA) is currently surveying ambient light levels on thousands of miles of public roadways as a basis for setting adaptive lighting level standards in the future. In a parallel initiative, FHWA is examining adaptive traffic signal technologies. Washington State Department of Transportation (WSDOT) is currently working on the Statewide light-emitting diodes (LED) Roadway Lighting Conversion and Removal Project and plans to install an adaptive lighting system (using the Acuity Brands’ ROAM system) along seven miles of urban freeway through Olympia, the state capital city. This corridor offers a great opportunity to study how adaptive lighting and active traffic management/control may be combined to maximize safety and efficiency benefits. Thus, this project intends to investigate the potential safety and efficiency benefits that may be afforded through combined implementation of adaptive lighting and active traffic control strategies enabled by connected sensor and infrastructure networks.

Language

  • English

Project

  • Status: Active
  • Funding: $180000
  • Contract Numbers:

    DTRT13-G-UTC40

  • Sponsor Organizations:

    Pacific Northwest Transportation Consortium

    University of Washington
    More Hall Room 112
    Seattle, WA  United States  98195-2700

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Managing Organizations:

    University of Washington, Seattle

    Civil and Environmental Engineering Department
    201 More Hall, Box 352700
    Seattle, WA  United States  98195-2700
  • Project Managers:

    Wang, Yinhai

  • Performing Organizations:

    University of Washington, Seattle

    Civil and Environmental Engineering Department
    201 More Hall, Box 352700
    Seattle, WA  United States  98195-2700

    Oregon State University, Corvallis

    School of Civil and Construction Engineering, 101 Kearney Hall
    Corvallis, OR  United States  97331-2302
  • Principal Investigators:

    Wang, Yinhai

    Wang, Haizhong

  • Start Date: 20161215
  • Expected Completion Date: 20180131
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers
  • Subprogram: DTRT13-G-UTC40
  • Source Data: http://depts.washington.edu/pactrans/research/projects/freeway-traffic-safety-and-efficiency-enhancement-through-adaptive-roadway-lighting-and-control-enabled-by-connected-sensor-and-infrastructure-networks/

Subject/Index Terms

Filing Info

  • Accession Number: 01631071
  • Record Type: Research project
  • Source Agency: Pacific Northwest Transportation Consortium
  • Contract Numbers: DTRT13-G-UTC40
  • Files: UTC, RiP
  • Created Date: Mar 28 2017 4:45PM