Interactive Highway Safety Design Model (IHSDM)-Related Safety Data Case Studies

This case studies document highlights the projects that used Interactive Highway Safety Design Model (IHSDM) to apply Highway Safety Manual Part C Predictive Methods. The Federal Highway Administration (FHWA) Roadway Safety Data Program is working with State and local agencies to develop case studies around roadway safety data collection, management, and analysis issues. These case studies help illuminate both the challenges that agencies encounter on data issues and the solutions they are implementing to address those challenges.