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Wednesday, May 10, 2023

State DOT Links

Links to State DOT GIS data portals and GIS applications are now available on our GIS Practices page.

Wednesday, May 10, 2023

Using GIS for Crash Location and Analysis at State DOTs

Case Studies of Select Transportation Agencies

State DOTs identified “crash location and analysis to improve road safety” as an area they are interested in learning how GIS is applied. This case study report identifies notable practices from these State DOTs across the country: Alabama DOT, Oregon DOT (ODOT), New York DOT (NYSDOT), North Carolina DOT (NCDOT), and Connecticut DOT (CTDOT).
The case study can be found here.

To view previous reports, visit our report page.

Friday, March 31, 2023

National Road Network Webinar Summary Report now available.

Justin Clarke and Thomas Roff of the Federal Highway Administration (FHWA) presented on FHWA efforts to develop a National Road Network Project (NRNP). As defined by Congress, NRNP incorporates requirements and a process framework to improve the quality of the Highway Performance Monitoring System (HPMS) road network in three areas: Connectivity of networks at intra- and interstate borders, Spatial representation of multi-carriageway roadways, and Spatial accuracy of networks. The webinar summary can be found here.

To view previous webinar summaries, visit our webinar page.

Friday, March 31, 2023

Winter 2023 Newsletter now available.

The latest edition of the GIS in Transportation newsletter is now available here.

This edition features a spotlight from the North Carolina Department of Information Technology - Transportation summarizing their work with Linear Referencing Systems (LRS) through ArcGIS Roads and Highways. They work closely with Arizona DOT and other States through the Roads and Highways User Group to benefit from the use of GIS-based LRS tools.

The newsletter also features the National Road Network Webinar.

To view past editions of our newsletters, visit our newsletter page.

Friday, March 31, 2023

GIS and E911/NG911 Peer Exchange: Summary Report now available.

Our latest peer exchange report is now available here!

The Federal Highway Administration’s (FHWA) Geographic Information System (GIS) in Transportation program sponsored a three-day virtual peer exchange in June 2022 to bring together practitioners of GIS applications to discuss and learn about how State Departments of Transportation (DOTs) and E911 agencies are building and managing their road networks and how DOT and E911 agencies can collaborate to have one road network for the State.

Previous Peer Exchange reports can be found here.

What We Do

The GIS in Transportation program facilitates the knowledge transfer of GIS skills, best practices, and technical resources among State, regional, and local transportation organizations. This website captures the respective lessons learned and makes them available to all GIS practitioners and transportation professionals.

FHWA HEPGIS Application

The HEPGIS website is an interactive, web-based geographic map server that enables users to navigate, view, and print geospatial maps using only their web browser.

Geospatial Data Collaboration

Geospatial Data Collaboration (GDC) is an FHWA Every Day Counts 2 initiative that encourages transportation agencies to use geospatial tools to share data, increase collaboration, and improve the quality and speed of transportation decision-making.


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Mark Sarmiento
FHWA Office of Planning

Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000