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                Media ContactsMenu OFFICE OF RESEARCH, DEVELOPMENT, AND TECHNOLOGY AT THE TURNER-FAIRBANK HIGHWAY RESEARCH CENTER Home
                        Research
                        Turner-Fairbank Highway Research Center
                        Research and Development
                        IHSDM


            
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   Laboratory Manager
      In-Kyu Lim
      
                    
            Geometric Design Laboratory Manager
      
                    
            Turner-Fairbank Highway Research Center
      
                    
            United States Department of Transportation Federal Highway Administration6300 Georgetown PikeMcLean, VA 22101United States
      
          
    **Email:**in-kyu.lim@dot.gov
    If you are deaf, hard of hearing, or have a speech disability, please dial 7-1-1 to access telecommunications relay services.
                
                Interactive Highway Safety Design Model (IHSDM) Software Version 17
		

		
		
					
							
			
		 

    							The **IHSDM Version 17 software download** is composed of a suite of software analysis tools used to evaluate the safety and operational effects of geometric design decisions on highways.

IHSDM is a decision-support tool that provides estimates of a highway design's expected safety and operational performance. Results of the IHSDM support decisionmaking in the highway design process. Intended users include highway project managers, designers, and traffic and safety reviewers in State and local highway agencies and in engineering consulting firms.

NOTICE:

The Federal Highway Administration (FHWA) recently acquired the .gov domain for the Interactive Highway Safety Design Model (IHSDM) program. Although FHWA used to be associated with the www.ihsdm.org domain name, it was recently purchased by another entity unrelated to FHWA. As such, FHWA is no longer affiliated with the .org site and thus not associated with any content that appears on the .org domain name.
		
		
		
    
					Last updated: Monday, March 21, 2022 U.S. DEPARTMENT OF TRANSPORTATION

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