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Datasets

4,395 datasets

U.S Department of Transportation

HPMS County Summary 2019

State DOTs provide Local and Rural Minor Collector mileage summarized by county and ownership as a direct input to the Highway Performance Management System (HPMS). The final numbers provided in the Highway Statistics…

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Updated Oct 25, 2026

U.S Department of Transportation

Public Road Length by Functional System and State, 1980 - 2024 (HM-20)

Annual length of U.S. public roads in miles by functional system for each of the 50 states, DC, and Puerto Rico from the Highway Statistics table HM-20. (Note: In 2009, the Urban functional class of Collectors became…

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Updated Oct 25, 2026

U.S Department of Transportation

Takata Recall

Tens of millions of vehicles with Takata air bags are under recall. Long-term exposure to high heat and humidity can cause these air bags to explode when deployed. Such explosions have caused injuries and deaths. NHTSA…

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Updated Oct 25, 2026

U.S Department of Transportation

Rail Equipment Accidents - Accidents By State/Railroad

"This file contains reported cases of collisions, derailments, fires, explosions, acts of God, or other events involving the operation of railroad on-track equipment and involving damages exceeding the reporting…

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Updated Oct 25, 2026

U.S Department of Transportation

HPMS Urban Area Summaries 2023

The Highway Performance Monitoring System Urban Area Summaries table contains daily travel and demographics data for all local functional system roads for each adjusted urbanized area.

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Updated Oct 25, 2026

U.S Department of Transportation

HPMS Roadway Sample 2018

State DOTs provide the Highway Performance Monitoring System (HPMS) with the location limits of highway sections used to represent statewide aggregations based on a statistically valid Sample Panel.

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Updated Oct 25, 2026

U.S Department of Transportation

Bridges by NHS and State

This summary tables provides annual counts of bridges on and off the National Highway System (NHS) by States and territories beginning in 2000.

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Updated Oct 25, 2026

U.S Department of Transportation

Highway Rail Accidents - Frequency of Crossing Collisions

This file contains reported cases of impacts between on-track equipment and any user of a public or private highway-rail intersection. National files from 1975 through the current year are available for download. In…

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Updated Oct 25, 2026

U.S Department of Transportation

HPMS Roadway Events Data 2024

Roadway attributes datasets in the Highway Performance Monitoring System (HPMS) consist of three separate tables: the Road Designations Table, the Road Identifications Table, and the Road Events Table. The Roads Event…

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Updated Oct 25, 2026

U.S Department of Transportation

Highway Rail Accidents - Accident/Incident Overview by State/Region

This file contains reported cases of impacts between on-track equipment and any user of a public or private highway-rail intersection. National files from 1975 through the current year are available for download. In…

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Updated Oct 25, 2026

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