However, it will continue to support IHSDM and HSM users in a variety of ways.

IHSDM-related training is offered by the FHWA Resource Center and through the FHWA’s National Highway Institute.ĭevelopment of the IHSDM was coordinated with the HSM, which was developed by the Transportation Research Board and the American Association of State Highway and Transportation Officials (AASHTO), and was also published by AASHTO.įHWA will no longer carry out IHSDM software development. The IHSDM – HSM Predictive Method 2021 Release (version 17.0.0, September 2021) may be downloaded free of charge via the Software Download page. User technical support is also available free of charge at 20. Now Available: The IHSDM – Highway Safety Manual (HSM) Predictive Method 2021 Release (version 17.0.0, September 2021) This website provides a link to download the software, summarizes the capabilities and applications of the IHSDM evaluation modules, and provides a library of the research reports documenting their development.

The IHSDM-which supports the Federal Highway Administration's (FHWA's) Data-Driven Safety Analysis (DDSA) initiative-includes five evaluation modules (i.e., Crash Prediction, Design Consistency, Policy Review, Traffic Analysis, and Driver/Vehicle), as well as an Economic Analyses Tool. Intended users include highway project managers, designers, and traffic and safety reviewers in State and local highway agencies and in engineering consulting firms. Results of the IHSDM support decisionmaking in the highway design process. IHSDM is a decision-support tool that provides estimates of a highway design's expected safety and operational performance. IHSDM is a suite of software analysis tools used to evaluate the safety and operational effects of geometric design decisions on highways.

Hsmworks 2021