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.
Crashes to Conflicts: Advancing Predictive Safety Evaluations with Lidar-Developed Near-Miss Analytics
Nevada
NDOT used a model with LiDAR-based all-traffic trajectory data to enhance pedestrian safety assessments at urban intersections. The data is helping planners anticipate and mitigate safety risks and develop precisely targeted improvements.
NCHRP: Institutionalizing the Safe System Approach in Planning and Programming
NCHRP
The new toolkit from NCHRP Project 08-171 helps transportation agencies break down barriers to SSA adoption. It offers 30 practical strategies in areas like working with elected officials, funding, and multimodal network design.
TETC Multi-State Bridge Hit Mitigation Media and Strategy Campaign
AlabamaConnecticutDelawareKentuckyMarylandMassachusettsNorth CarolinaPennsylvaniaVirginiaWest Virginia
Several states and D.C. created a regional “bridge hit” media campaign targeted at drivers hitting low clearance bridges and restricted parkways. The campaign received significant engagement and media coverage.
Smarter Roads Ahead: The Smart Work Zone Success at Rainbow/Veterans Bridges
Texas
Smart work zone strategies on a TxDOT bridge project improved safety for workers and the public. Temporary incident detection and surveillance, travel time, and speed monitoring systems made the project area was safer and more responsive.
Predictive Safety Evaluation for Effective Infrastructure Planning
Texas
Using proprietary, AASHTO, and FHWA tools, TxDOT identified safety improvements, predicted, and evaluated safety performance in early stages of project development. The tools help every DOT project become a safety project.
Texas DOT’s combined CMF calculator tool calculates the combined reduction factor of multiple countermeasures (which provides HSIP funding documentation). The full tool is accessible to district staff.
A Comprehensive Approach for Friction-Enhancing Treatment Selection
Kentucky
Kentucky replaced a needs-based, hot-spot approach with a more precise, systemic, “solutions-based” approach to friction-enhancing treatments and improved pavement safety performance.
Wisconsin’s Safety First program is a strategic and collaborative approach to coordinate safety projects; a community of practice including a workgroup, lectures, and shared data; communication and public engagement efforts.
