IHSDM Overview
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.
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.
Now Available: 2007 Public Release of IHSDM
The 2007 release of IHSDM may be downloaded free-of-charge at http://www.ihsdm.org. User technical support is also available free-of-charge. An IHSDM Training Course is available through the FHWA’s National Highway Institute.
IHSDM development is coordinated with two related initiatives: the SafetyAnalyst, under development by FHWA; and the Highway Safety Manual, under development by the Transportation Research Board.
See IHSDM Library for References
|