Credits
From IHSDMDownload
The Interactive Highway Safety Design Model (IHSDM) is a product of the U.S. Department of Transportation Federal Highway Administration Safety Research and Development Program.
The Geometric Design Lab at the Federal Highway Administration Turner-Fairbank Highway Research Center provides engineering, technical and software support to the IHSDM research and development program.
Most of the IHSDM software is being developed by Harris Corporation under contract number .