Seattle-area drivers are testing out the Smarter Highways initiative, deployed by the Washington State Department of Transportation (WSDOT) along the I-5 corridor, which helps alleviate congestion and delays caused by traffic incidents. The Smarter Highways initiative installed electronic overhead signs every half-mile which inform drivers of variable speed limits, lane status alerts, and real time traffic information. This information allows drivers to make more informed decisions, both on the speed in which they travel and the route they take in case of a major incident. The implementation of smart highways in Europe has had good results.

CMAP supports the development of initiatives like Smarter Highways in the Invest Strategically in Transportation section of the GO TO 2040 draft plan.