FHWA's Future Plans for IHSDM [fact sheet]

doi:10.21949/s1dp-1c49

i

FHWA's Future Plans for IHSDM [fact sheet]

2025-01-01
By United States. Department of Transportation. Federal Highway Administration

File Language:

English

Details

Corporate Creators:

United States. Department of Transportation. Federal Highway Administration
Contributors:

Lim, In-Kyu
Corporate Contributors:

United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center
Subject/TRT Terms:

Computer Models Crash Data Highway Design Highway Safety
Publication/ Report Number:

FHWA-HRT-26-015
DOI:

https://doi.org/10.21949/s1dp-1c49
Resource Type:

Brief
Right Statement:

Public Domain
Geographical Coverage:

United States
Corporate Publisher:

United States. Department of Transportation. Federal Highway Administration
Abstract:

The Federal Highway Administration (FHWA) has discontinued the Interactive Highway Safety Design Model (IHSDM) software development. However, FHWA will continue to provide free technical support via Geometric Design Laboratory (GDL) staff essentially as long as agencies are still using the IHSDM 2021 (version 17.0.0) software. Based on the current schedule, it is likely that the American Association of State Highway and Transportation Officials (AASHTO) will publish the Highway Safety Manual (HSM) second edition (HSM2) in 2026. Even after publication, agencies might need some time to transition from using HSM first edition (HSM1) methods and models to the new or recalibrated HSM2 models (e.g., to calibrate the new HSM2 models and vet the new models for their use). During that transition period (which will vary by agency), FHWA will continue to provide IHSDM and HSM support. Since the HSM2 will include models for some facility types or crash types that differ significantly from the HSM1 form (e.g., new pedestrian and bicycle crash models), some parts of the IHSDM Crash Prediction Module (CPM) will become obsolete over time. At some point, the entire IHSDM CPM may become obsolete. Again, FHWA will provide IHSDM technical support to users until then.
Format:

PDF
Collection(s):

Federal Highway Administration
Main Document Checksum:

urn:sha-512:92056239abc063c493167fb7d96ecbb23ddf70f79fb40f306b234f9a0999cc6727afa17ef9b89e16a44e07cf667ada09017d0ff251bc778ab5ecb210a236a59a
Download URL:

https://rosap.ntl.bts.gov/view/dot/88871/dot_88871_DS1.pdf
File Type:

[PDF - 1.30 MB ]

File Language:

English

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