Transportation data

View roadway, traffic and crash data as well as GIS maps and data layers for state routes and public roads. 

Crash data

Learn about crash-related data products and services such as how to request crash data and the crash data portal which displays summarized crash statistics.

Roadway data

Find information about the roadway data related products and services such as functional classification, highway performance monitoring system, national highway system, roadway images and state highway log.

Statewide GIS maps & data layers

You can get instant access to state transportation data, maps and interactive map applications.

Travel data

Learn about our traffic data collection program and the data and services we provide such as annual mileage and travel information, peak hour vehicle traffic report, traffic count services, traffic data request and summary statistics, and vehicle speed reports.

Winter driving tips

Traction tires are a special type of tire

manufactured with at least 1/8 of an inch tread. Traction tires are usually marked with a mountain/snowflake symbol, the letters M+S or “All Season.”

Carry chains, practice before leaving

Requiring chains keeps traffic moving during storms rather than closing a pass or roadway.

Prep your car. Fill up your gas tank,

pack jumper cables, ice scraper, warm clothing, snacks and water.