September 5, 2013

Map: Schools and Road Pollution in Washington State

Print More

Related Article ยป

Definitions

In the map above, high-traffic routes carry at least 50,000 vehicles per day, according to WSDOT data.

T-1 truck routes carry more than 10 million tons of annual freightage. T-2 truck routes carry more than 4 million tons of annual freightage.

Comments are closed.