Quarterly vehicle speed report

Find summarized vehicle speed data from our network of traffic recorders permanently installed in Washington State highways. This data may be used to evaluate vehicle speed trends to assist in highway design and safety improvements.

As of 2021, this report is no longer produced.  However, equivalent information is available through our Traffic Data Reporting System. For assistance with this application, including accessing and extracting data, please see our Help and User’s Guide (PDF 2.0MB).

Quarterly speed reports

2020

2019

2018

2017

2016

2015

2014

2014 Support document (PDF 1MB)

2013

 

Slow down – lives are on the line.

Excessive speed was a top cause of work zone collisions in 2024.

Phone down, eyes up.

Work zones need our undivided attention.

It's in EVERYONE’S best interest.

96% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.