Traffic Lab

Traffic Lab is a Seattle Times project that digs into the region’s thorny transportation issues, spotlights promising approaches to easing gridlock, and helps readers find the best ways to get around. Traffic Lab receives financial support from Pemco Mutual Insurance Company. Seattle Times editors and reporters maintain editorial control over Traffic Lab content.

Seattle-area traffic jams are creeping back; here are the worst corridors

Traffic flows over the I-5 ship canal bridge Saturday September 18, 2021.

After an overnight drenching of rain, Seattle gets a sun break.

Congestion has risen since last year, according to a new report, but is still 60% below 2019 levels as large employers delay office returns and the pandemic drags on.

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