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Interactive Highway Safety Design Model (IHSDM): Contacts


To request user technical support, contact:

IHSDM Help Line: (202) 493-3407
IHSDM Support Email:

For other information about IHSDM, contact:

Shyuan-Ren (Clayton) Chen
Office of Safety Research and Development
Turner-Fairbank Highway Research Center
Federal Highway Administration
6300 Georgetown Pike
McLean, VA 22101