Crash Prediction Module

The Crash Prediction Module (CPM) includes an implementation of the crash prediction methods documented in part C of the American Association of State Highway and Transportation Officials’ (AASHTO) First Edition Highway Safety Manual (HSM). CPM includes capabilities to evaluate rural two-lane...

Interactive Highway Safety Design Model (IHSDM): Software Download

Click the link to download the IHSDM 2021 software release (version 17.0.0; September 2021). 

The IHSDM—which supports the Federal Highway Administration's Data-...

Related Initiatives

The Highway Safety Design Manual (HSM) shares the Interactive Highway Safety Design Model’s (IHSDM’s) goal of providing quantitative safety analysis tools to decisionmakers.

The HSM is a Transportation Research Board (TRB) and...

Modules

The Interactive Highway Safety Design Model (IHSDM) suite of software analysis tools includes five evaluation modules and an Economic Analyses (EA) Tool:

1. Crash...

Geometric Design Laboratory Overview

Purpose

The mission of the Geometric Design Laboratory (GDL) is to support the Office of Safety Research and Development in research related to the geometric design of roadways and the impacts on safety. The GDL provides technical support to develop, maintain, and...

Interactive Highway Safety Design Model (IHSDM): FAQs

Welcome to the Interactive Highway Safety Design Model (IHSDM) Frequently Asked Questions list. Here you will find the links to each section of the FAQ to help you download, install, and use this software.

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Interactive Highway Safety Design Model Contacts

To request user technical support, contact:

IHSDM Help Line: (202) 493-3407
IHSDM Support Email: IHSDM.Support@dot.gov

For other information about IHSDM, contact:

In-Kyu Lim
Office of Safety and Operations Research...

ELCSI-PFS Publications

The goal of this research is to develop reliable estimates of the effectiveness of the safety and operational improvements identified by the ELCSI-PFS Advisory Committee (TAC). These estimates are determined by conducting scientifically rigorous before-and-after evaluations at...

Studies of ELCSI-PFS

Completed and Published Studies (Technical Reports, Tech Briefs, Papers, and Reference Guides) under, and with the support of, the Development of Crash Modification Factors Program (...

Evaluations of Low Cost Safety Improvements Pooled Fund Study (ELCSI–PFS)

ELCSI–PFS is conducted under and supported by the Development of Crash Modification Factors (DCMF) program. The ELCSI–PFS, which...