Case Study Filter: Data Mgt. & Analysis

Back to Catalog

Improving Rural Intersection Safety and Efficiency with Dynamic Dilemma Zone Protection: Alabama Pilot Study

Alabama
Rural high-speed intersections in Alabama experienced several benefits, including 24-35% fewer red light-runner crashes, in a pilot of CWA (continuous wide area) sensors used in a dynamic DZP (dilemma zone protection) system.
AASHTO Safety Summit Poster 2025

AASHTOWare: Prioritizing Roadway Departure Crashes

AASHTO
AASHTOWare compares and contrasts three methods for safety improvement location identification: 1) crash prediction model, 2) expected crash frequency exceeding threshold, and 3) crash prediction model + systemic safety characteristics.
AASHTO Safety Summit Poster 2025

Data-Driven Calibration of Safety Performance Functions Using Optimization Techniques

Georgia
Georgia worked to calibrate SPFs for rural and urban roadways to optimize and refine SPF models. GDOT found that a combination of models for outlier detection and optimization yielded the most robust SPFs.
AASHTO Safety Summit Poster 2025

Safety of Automated Vehicles Services – Status and Projections

Colorado
AV robotaxi services are rolling out throughout the United States. The current safety record is encouraging. Projections show that the safety benefits of AV will be realized at scale in the 2030s.
AASHTO Safety Summit Poster 2025Scan Tour ArticleStudy Document

Driver Risk Based Analytics

Florida
Florida DOT identified hot spots for driver behavior across its District 2, allowing them to develop countermeasures to address poor behavior and crashes in those locations.
AASHTO Safety Summit Poster 2025HSIP Report 2024Safe Roads Challenge WebsiteSafe Roads App - GoogleSafe Roads App - Apple

FDOT SAFETY Systems Enterprise

Florida
To identify locations with high Return on Investment for safety improvements, Florida DOT developed an advanced platform that integrates extensive data and safety metrics into one platform.
AASHTO Safety Summit Poster 2025

FDOT’s Statewide Systemic Analysis

Florida
FDOT uses a data-driven, risk-based approach to guide systemic investments. Their systemic analysis led FDOT leadership to approve $35 million in HSIP funds, plus additional state funding for safety investments.
AASHTO Safety Summit Poster 2025

Louisiana Vulnerable Road User (VRU) Safety Assessment

Louisiana
Using a systematic, data-driven approach, Louisiana’s VRU Safety Assessment identified target areas for improvements and recommended infrastructure countermeasures, education, programs and policies. Priority factors were mapped to focus on areas for project implementation.
AASHTO Safety Summit Poster 2025LaDOTD VRU Safety Assessment

Using Probe Data and Telematics for Local Traffic Safety Campaigns

Massachusetts
MassDOT uses probe and telematics data to identify safety issues in local communities. They develop targeted campaigns and use probe and telematics data to measure post-campaign behavior.
AASHTO Safety Summit Poster 2025Holyoke Campaign Press ReleaseChelsea Campaign Press Release

Don’t Wait, Be Proactive! Systemic Safety for Minnesota’s District Safety Plans

Minnesota
MnDOT updated road safety plans in every district with a systemic crash analysis. Analysis confirmed that higher crash densities and severe crashes occurred at locations with higher risk scores.
AASHTO Safety Summit 2025
Other keywords: