An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
A method is needed to track new strategies and technologies as they are developed and deployed on our Nation’s roadways...
The IHSDM Library includes all recently published materials on IHSDM in online and/or hard copy format. Past published materials, denoted as archive, are also available; these materials are somewhat dated, but may still contain information of interest to serious researchers. Some publications...
A product of the Federal Highway Administration’s (FHWA) Safety Research and Development Program, the Interactive Highway Safety Design Model (IHSDM) is a suite of safety analysis tools to evaluate the safety and operational effects of geometric-design decisions on highways.
Improving roadway safety continues to be at the forefront of all stages of project development, including planning, alternatives analysis, design, construction, and operations.
Originally released in January 2019, data disseminated and displayed through InfoBridge includes the National Bridge Inventory (NBI), the National Bridge Elements (NBE), climate data extracted from National Aeronautics and Space Administration’s Modern-Era Retrospective analysis for Research and Applications, Version 2 database, as well as data collected through LTBP program efforts including design and construction data for select bridges, NDE data for select bridges, as well as data from experimental testing The visualization c
The Long-Term Pavement Performance (LTPP) program was established to collect pavement performance data as one of the major research areas of the Strategic Highway Research Program (SHRP). The first 5 years of the LTPP program were completed under the funding and direction of SHRP. Since 1991, the Federal Highway Administration (FHWA) has continued the management and funding of the program. The LTPP program is managed by the Long-Term Infrastructure Performance Team (HRDI-30) under the Office of Infrastructure Research and Development.
IHSDM is 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....
SHRP 2 Naturalistic Driving Study Pooled Fund: Advancing Implementable Solutions TPF 5(361)
Seven State DOTs (AL, CT, IA, IL, NV, UT, WA) and three FHWA Offices (Office Safety R&D, Office of Operations, Office of Planning, Environment...