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.
Bridge & Freeway Work Zones: Traffic Management for Safety & Mobility
Massachusetts
To improve work zone safety, MassDOT created construction standards and specifications for Accelerated Bridge Construction, moveable barriers, and lane closures scheduled at night. The measures increased safety, traffic flow, and cost savings.
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.
US-31/M-72 had frequent fog, blowing snow, and a severe crash pattern. After adding a center median, edgeline and centerline corrugations, guardrail, new pavement, and a flashing low visibility warning system, the segment had less severe crashes.
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.
Concerned with rural intersections crashes, MnDOT developed a standard layout of lane constrictors. They installed lane constrictors at 61 side street, stop-controlled locations.
More than 70% of fatal and serious injury crashes in Minnesota occurred on local roads. MnDOT re-engaged local agencies with workshops, an education and resources webpage, videos, and webinars.
The MnDOT Safe System Approach Implementation Plan integrates the SSA into programming. Their process involves an internal SSA implementation workgroup, tools library, speed management guide, training, and updated technical guidance documents.
Safer Mobility: Embracing Technology and Pilot Programs through the Safe System Approach
FloridaKentuckyMassachusettsMissouri
Emerging innovations offer new opportunities to align with the safe system approach. Broward County, Florida identified 35 technologies for safer roads. Louisville, Kentucky developed strategies for safer speeds. MassDOT’s virtual reality pop-up experience strengthened outreach for safer people. Missouri’s predictive layered operations initiative (PLOI) enhanced post-crash care.
