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.
Safe Truck Mobility for North Dakota Winter Roads
North Dakota
North Dakota Highway Patrol and North Dakota DOT studied crash risk and travel disruption due to severe winter storms through a Safe System lens. They found several proactive opportunities for safe truck mobility during winter storm events.
Get Involved with Transportation Research Board (TRB)
NCHRP
NCHRP and BTSCRP develop resources for DOTs, transportation professionals, and other agencies. Resources include research related to the AASHTO Highway Safety Manual and AASHTO Manual for Assessing Safety Hardware, safety guides for practitioners, and behavioral research. Transportation professionals may contribute problem statements, conduct research, and volunteer for project panels.
Safety Tools for Intersection Control Evaluation (ICE)
FHWA
ICE is a process that provides a framework, steps, and tools for agencies to make data-driven safety decisions about intersection forms and controls. NCHRP and FHWA offer several tools to support ICE.
The MnDOT Safe System Approach (SSA) implementation plan has the goal of institutionalizing the SSA across the agency. will be a framework leading the agency to broad application of SSA principles throughout the project development process. The SSA will be seen as an approach for staff at MnDOT to utilize in their work toward eliminating fatalities and serious injuries.
Data for Proactive Road Safety: Continuous Pavement Friction Measurement
Kentucky
Pavement Friction Management (PFM) using Continuous Pavement Friction Measurement (CPFM) is a proactive approach for managing pavements for safety throughout the roadway lifecycle. Taking a lifecycle approach to designing, specifying, and maintaining friction performance saved Kentucky more than $1 billion annually and reduced fatal and severe crashes by up to 24%.
Iowa DOT's short-term network screening method identifies freeway segments most likely to have excess crashes in coming weeks, which helps prioritize emergency response and enforcement. Seasonal conditions (weather, animal crossings) may be factored into crash risk. The method can also help with the design of effective countermeasures.
Public Outreach Efforts to Earn Local Support for Safety Countermeasures
Iowa
Iowa DOT uses a variety of public outreach efforts to garner local support for safety countermeasures, such as a video series, dynamic message signs, social media and blog posts, public meetings, informational materials, a speed feedback sign program, and a public awareness campaign.
Data-Driven Strategies Using Predictive Modeling and Interactive Dashboards
Iowa
Since traffic safety projects often yield varying impacts on safety performance, Iowa DOT established a robust system to track crash histories related to safety projects, which is essential to assess project effectiveness, efficiency, and return on investment. The system is helpful to site identification, safety issue diagnosis, and countermeasure evaluation.