State Safety Initiative Database

Explore relevant case studies by filtering via agency, keyword, or pre-set filters in the left menu, or by using the topic tags located at the bottom of the page.

Texas DOT’s Combined CMF Calculator Tool (Version 2)

Texas
The Safety Division of the Texas Department of Transportation (TxDOT) developed an intuitive spreadsheet-based tool to estimate the combined safety effects of multiple countermeasures. This poster highlights an enhancement to the tool that was introduced last year, incorporating crash proportions into the combined CMF methodology to provide more accurate estimates of crash reduction benefits when multiple countermeasures are implemented. The enhancement also accounts for the fact that some CMFs are applicable only to specific crash types, ensuring that benefits are estimated only for the crashes each countermeasure is intended to address. This improvement significantly supports project prioritization by identifying projects with the greatest potential safety benefits. The tool also utilizes crash proportion data derived from TxDOT's AASHTOWare Safety platform, further improving the reliability and accuracy of safety benefit estimates across the state.

A Proactive Path to Safer Roads: New Jersey DOT’s Systemic Safety Program

New Jersey
NJDOT’s systemic safety approach proactively reduces crash risk by applying low-cost, proven countermeasures across the network. The poster summarizes horizontal curve, wrong-way driving, school zones, signalized intersection, pedestrian, and bicyclist analyses using a machine learning approach.

Integrating Crash Data and Telematics to Advance Safety Analysis in Nebraska

Nebraska
Safety professionals understand where crashes occur, while telematics is creating new opportunities to understand operational characteristics of the roadway. By including telematics in their safety management process, Nebraska enhanced network screening and identified targeted enforcement corridors.

Strengthening Traffic Safety through Public Health Partnerships

California Colorado Georgia North Carolina Washington
Traffic fatalities are a key public health challenge, yet DOT safety efforts are often siloed from public health practice. This poster highlights work from five pilot states participating in a program designed to strengthen collaboration and support public health integration into safety efforts.

Minnesota Evaluations for Rest in Red and Advance Warning Flashers

Minnesota
On an MnDOT-funded project, HDR and HSRC evaluated traffic safety strategies in Minnesota. The analysis results found statistically significant safety effectiveness for both Rest-in-Red overnight signal operations in Ramsey County and advance warning flashers at signalized intersections statewide.

Minnesota DOT Local Road Traffic Safety Webinars

Minnesota
This webinar series delivers targeted, data-driven safety training to local agencies in MN and beyond. Webinars are a strategy to sustain engagement. The poster covers promotion strategies, content format, including local-focused crash data and peer speakers, and key lessons learned.

From Vision to Action: Implementing the Safe System Approach at Kentucky Transportation Cabinet

Kentucky
The Kentucky Transportation Cabinet (KYTC) partnered with the Kentucky Transportation Center (KTC) to identify effective strategies for implementing the Safe System Approach (SSA) within project development and delivery processes through a collaborative, multidisciplinary effort.