In Tysons Corner, Virginia optimized signal timing reduced delay by approximately 22 percent and decreased stops by roughly 6 percent.
Date Posted
09/21/2000
Identifier
2007-B00395
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Traffic Signal Optimization for Tysons Corner Network Volume I. Evaluation and Summary

Summary Information

Beginning in 1994, Fairfax County, Prince William County, and Louden County in the Commonwealth of Virginia deployed a system to connect approximately 700 signalized intersections to a central control system using leased telephone lines. In the control room, operators attempted to effectively manage the arterial transportation network by optimizing signal timings to improve traffic progression and reduce environmental impacts.

FINDINGS

In May 1999, optimization of signal timing at 40 intersections was completed in the Tysons Corner area. Impact analyses indicated the system reduced vehicle stops by approximately six percent and decreased delay by approximately 22 percent.

Goal Areas
Deployment Locations