Deployment of variable rate, all-electronic, open road tolling on SR-520 Bridge near Seattle yielded $55 million of revenue in 2012.
The Seattle/Lake Washington Corridor Urban Partnership Agreement projects evaluated tolling, technology, transit, and travel demand management strategies to reduce congestion.
Made Public Date
12/11/2017

758

Seattle
Washington
United States
Identifier
2017-01182
TwitterLinkedInFacebook

Seattle/Lake Washington Corridor Urban Partnership Agreement: National Evaluation Report

Summary Information

In 2006, the U.S. DOT initiated the UPA (Urban Partnership Agreement) program to demonstrate congestion reduction through strategies consisting of combinations of the 4Ts: Tolling, Transit, Telecommuting/TDM, and Technology. The Seattle/LWC UPA projects focused on reducing traffic congestion on SR 520 between I-405 and I-5, a heavily-traveled, east-west commuter route across Lake Washington. The lake separates Seattle from the eastern suburbs (including Bellevue and Redmond). These strategies included tolling all lanes of the SR 520 bridge, adding bus service in the SR 520 corridor, implementing active traffic management systems, and real-time traveler information signs on highways and at transit stops and stations. The suite of projects had a combined benefit-to-cost ratio of 1.76 due to travel time savings and reduced emissions.

Findings

A key driver of adding tolls to the existing SR 520 bridge was to generate revenue for a replacement bridge. The SR 520 tolls generated $54,879,495 in 2012 during the 2012 post-deployment period.
Goal Areas
Deployment Locations