Developing a Rural and Urban Roadway Lighting Practical Design Guide for Iowa

Project status

Completed

Start date: 08/01/05
End date: 03/31/08

Researcher(s)

Principal investigators:

Co-principal investigators:

Student researchers:

  • Caroline Kinzenbaw
  • Hillary Isebrands
  • Massiel Orellana

About the research

Citizens request the installation of roadway lighting in their communities based on several motivations, including the experience or perception that lighting improves traffic safety and reduces crime, while also providing a tangible benefit of taxpayer dollars at work. Roadway authority staff fully appreciate these citizen concerns; however, roadway lighting is expensive to install, supply energy to, and maintain in perpetuity. The installation of roadway lighting is only one of a number of strategies agencies have to address nighttime crash concerns. This research assists local agencies in deciding when, where, and how much rural intersection lighting to provide.

Publications

Report: Strategies to Address Nighttime Crashes at Rural, Unsignalized Intersections (2.71 mb pdf) February 2008

Tech transfer summary: Strategies to Address Nighttime Crashes at Rural, Unsignalized Intersections (168 kb pdf) Feb 2008

Sponsor(s)/partner(s)

Sponsor(s): Iowa Department of Transportation

Overhead flashing light next to stop sign
Use of overhead flashing beacons at all-way stop intersections