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A design prototype by Datopian, not an official website

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Seattle Freeway Travel Times

U.S Department of Transportation

Updated Oct 25, 2026

About this dataset

The purpose of the data set is to provide multi-modal data and contextual information (weather and incidents) that can be used to research and develop applications for the USDOT Dynamic Mobility Applications (DMA) program.

This legacy dataset was created before data.transportation.gov and is only currently available via the attached file(s). Please contact the dataset owner if there is a need for users to work with this data using the data.transportation.gov analysis features (online viewing, API, graphing, etc.) and the USDOT will consider modifying the dataset to fully integrate in data.transportation.gov.

Additional related data can be found here: <a href="https://data.transportation.gov/Automobiles/Seattle-20-Second-Freeway/ixg2-6cni">https://data.transportation.gov/Automobiles/Seattle-20-Second-Freeway/ixg2-6cni</a>

Data and resources (1)

Prototype by Datopian · not an official government website · data from data.virginia.gov