Letter to Applicants (IN FLAP)

Amendment Process

Interactive Highway Safety Design Model (IHSDM) FAQs: IHSDM Graphical User Interface (GUI)

This page provides information and tips for navigating and customizing the IHSDM user interface. 

Interactive Highway Safety Design Model (IHSDM) FAQs: IHSDM Data Structure

The basic components of the IHSDM data organization structure include users, projects, highways, intersections, interchanges, ramp terminals, roundabouts, sitesets, and evaluations. This section contains guidance for where to find information about these components and their relationships, as well as the sample IHSDM Projects provided with the software.

Acronyms/Abbreviations
The following acronyms/abbreviations are used in the FAQs below.

Interactive Highway Safety Design Model (IHSDM) FAQs: IHSDM and Highway Safety Manual (HSM)

There is an important and direct relationship between IHSDM and AASHTO’s Highway Safety Manual. This section explains that relationship and the advantages of using IHSDM to apply HSM Part C predictive methods.

Acronyms/Abbreviations
The following acronyms/abbreviations are used in the FAQs below.

Interactive Highway Safety Design Model (IHSDM): Resources (Technical Support, Training, and More.)

Welcome to the IHSDM Resources and Training Page. There are many resources available to help IHSDM users. This section provides information on resources such as technical support, training, and contacts.

Acronyms/Abbreviations
The following acronyms/abbreviations are used in the FAQs below.

Interactive Highway Safety Design Model (IHSDM) FAQs: Getting Started

This section provides suggestions for getting started with IHSDM as a new user or as a previous user of the tool.

Acronyms/Abbreviations
The following acronyms/abbreviations are used in the text below.

Interactive Highway Safety Design Model (IHSDM): Downloading and Installing IHSDM

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. 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.

Interactive Highway Safety Design Model (IHSDM) FAQs: Overview and Capabilities

Welcome to the IHSDM Frequently Asked Questions page. This is the starting point for information regarding the capabilities of this software, its most effective uses, and how to deploy it.

Acronyms/Abbreviations
The following acronyms/abbreviations are used in the FAQs below.

Interactive Highway Safety Design Model (IHSDM) FAQs: Downloading and Installing

The following FAQs will help you to download and install the IHSDM software.