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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation
FHWA Highway Safety Programs


The Highway Safety Improvement Program (HSIP) is a core Federal-aid program with the objective to achieve a significant reduction in traffic fatalities and serious injuries on all public roads through the implementation of highway safety improvement projects. The HSIP, similar to other Federal-aid programs, is a federally-funded, state administered program. The FHWA establishes the HSIP requirements via 23 CFR 924, and the States develop and administer a program to best meet their needs.

The HSIP requires a data-driven, strategic approach to improving highway safety on all public roads that focuses on performance. To obligate HSIP funds, each State shall:

  • Develop, implement, and update a State strategic highway safety plan;
  • Produce a program of projects or strategies to reduce identified safety problems; and
  • Evaluate the SHSP on a regularly recurring basis.

States are also required to submit a report that describes the progress being made to implement highway safety improvement projects and the effectiveness of those improvements. The HSIP MAP-21 Reporting Guidance outlines the content and schedule for the annual HSIP report. The HSIP report should include, at a minimum, a discussion of each State's:

  • Program Structure
  • Progress in Implementing the HSIP projects
  • Progress in Achieving Safety Performance Targets
  • Assessment of the Effectiveness of the Improvements (Program Evaluation)

The HSIP 2015 National Summary Report compiles and summarizes aggregate information related to the States progress in implementing HSIP projects during the 2015 reporting cycle. Progress in implementing HSIP projects is described based on the amount of HSIP funds available and the number and general listing of projects obligated as documented in the 2015 HSIP reports. The HSIP 2015 National Summary Report is not intended to compare states; rather to illustrate how the states are collectively implementing the HSIP to reduce fatalities and serious injuries on all public roads across the nation.

A summary of available funding and the number and general listing of projects from prior years is available in the HSIP National Summary Baseline Report: 2009 -2012HSIP 2013 National Summary Report, and HSIP 2014 National Summary Report.