Center for Safety Equity in Transportation

rural • isolated • tribal • indigenous

Improving Safety for RITI Communities in Idaho – Documenting Crash Rates and Possible Intervention Measures

  • Active

    CSET Project #: 1806

    Project Funding: CSET and University of Idaho

  • Start Date: July 2018

    End Date: September 2019

    Budget: $115,000

Principal Investigator(s)

Ahmed Abdel-Rahim

Dr. Abdel-Rahim is a Professor in the Civil Engineering Department at the University of Idaho and the director of the University’s National Institute for Advanced Transportation Technology (NIATT). Dr. Abdel-Rahim research interest includes in highway safety and design, traffic flow operations and control, and transportation network modeling.  Dr. Abdel-Rahim has been involved in a variety of safety related research projects funded but USDOT, FHWA, and state DOTs. He managed more than 56 research projects and published more than 95 peer reviewed publications. 

Kevin Chang

 transportation engineering, traffic operations, traffic management, roadway design, safety management, school transportation, traffic calming, engineering education, professional development, and public outreach.

Michael Lowry

  • Transportation public investment decision-making
  • Planning for pedestrians and bicyclists
  • Assessing the influence of the built environment on travel demand models
  • Enhancing education in STEM fields

Project Summary

This project is a continuation of a CSET Year-1 project at the University of Idaho titled “Documenting the Characteristics of Traffic Crashes for RITI Communities in Idaho”. The project represents the second step in establishing an in-depth understanding of the traffic safety conditions in RITI communities towards the ultimate goal of improving safety for these underserved groups through research, education, and outreach activities. The Year-1 project, currently underway, has three objectives: 1) identify and document different sources of crash data for RITI communities in Idaho, 2) conduct an in-depth crash analysis to document the characteristics of traffic crashes in RITI communities in Idaho, and 3) identify and document different sources for traffic exposure data (vehicle-miles-travelled) for RITI communities in Idaho. In this project we aim to achieve the following three objectives:

1) Develop a methodology to estimate Average Annual Daily Traffic (AADT) on rural roads based on available traffic counts and on “potential network flow” between origins and destinations;

2) Use AADT and other exposure measure data to document crash rates for different roadway segments in RITI communities in Idaho; and

3) Synthesize and document possible engineering and education intervention measures to reduce the number and severity of crashes for RITI communities in Idaho.