IHSDMDownload:About

The IHSDM Wiki and software download web site is developed and supported for the Interaction Highway Safety Design Model (IHSDM) program at the U.S. Department of Transportation, Federal Highway Administration (FHWA) under Contract No. . Please direct your comments about this web site to Peter Holm at or 719-599-1695.

The Interactive Highway Safety Design Model (IHSDM) is a suite of software analysis tools for evaluating safety and operational effects of geometric design decisions on two-lane rural highways. The IHSDMDownload wiki is a collaboration site for obtaining, using, configuring and enhancing the IHSDM software.

IHSDM is a decision-support tool. It checks existing or proposed two-lane rural highway designs against relevant design policy values and provides estimates of a design’s expected safety and operational performance. IHSDM results support decision making in the highway design process. Intended users include highway project managers, designers, and traffic and safety reviewers in State and local highway agencies and engineering consulting firms.

IHSDM currently includes five evaluation modules (Crash Prediction, Design Consistency, Intersection Review, Policy Review, and Traffic Analysis). A sixth module (Driver/Vehicle) is under development. This Web site summarizes the capabilities and applications of the IHSDM evaluation modules. It also provides a library of the research reports documenting their development.

If you would like to contribute to this site, please contact the IHSDM support staff at .