![Chart 4. Most congested commuting routes in Washington.](https://www.infrastructureusa.org/wp-content/uploads/2015/04/WA-chart4.jpg)
TRIP
Washington’s residents and businesses require a high level of personal and commercial mobility. Population increases and economic growth in the state have resulted in an increase in the demand for mobility as well as an increase in vehicle miles of travel (VMT). To foster quality of life and spur economic growth in Washington, it will be critical that the state provide a safe and modern transportation system that can accommodate future growth in population, tourism, recreation and vehicle travel.