King, Washington Traffic Data

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Estimated annual traffic volume: 14,084,985 vehicles. Based on an average trip distance of 3.6 mi and an average travel time of 34.0 min, the estimated average travel speed is 6.4 mph. This reflects door-to-door average speed, including time stopped at traffic signals, in congestion, and at intersections.
Annual highway traffic is 21,999,645 vehicles, which is 57% more than non-highway traffic. Trucks make up 4.4% of highway traffic, which means there are approximately 2,652 daily trucks on highways within King County, or an estimated 967,980 trucks per year.
Non-highway average travel time is 33.9 min, which is 15% less than on highways. Average trip distance on non-highway roads is 3.5 mi, which is 67% less than on highways. The average age of non-highway drivers is 41.5 yrs, which is 1% less than on highways. The average income of non-highway drivers is $130,006, which is 4% more than on highways.

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