New Alternative Design Application

June 26, 2024

AASHTOWare Safety powered by Numetric is excited to announce the new Alternative Design application. This tool enables designers, planners, and safety engineers, to run Part C calculations found in the Highway Safety Manual, replacing the IHSDM. Alternative Design calculates the safety improvements made by designers, planners, and safety engineers, through changes made to roadway characteristics including lighting, shoulder size, lane width, etc. This application also produces reports that demonstrate comparisons between multiple design proposals and includes predictive methods for:

• Rural Two-Lane, Two-Way Roads
• Rural Multilane Highways
• Urban and Suburban Arterials
• Freeways, Interchange Ramps, and Interchange Terminals

If you are interested in learning more about how other agencies are using this new application, you can watch the recent webinar “Incorporating the Highway Safety Manual, Including Part-C, in the Design Process”. In this webinar, Wisconsin DOT discusses their experience using our new Alternative Design tool and demonstrates the benefits of using predictive methods in the design process.

You can also view more about the application in the FY25 AASHTOWare catalog.

For more information about AASHTOWare Safety or the new Alternative Design application contact Ryan Fragapane, Product Director.