The Virginia Department of Transportation (VDOT) has begun work on installing an active traffic management |(ATM) system on interstate 66 through Arlington, Fairfax and Prince William counties from the Washington, DC line to Route 29 in Gainesville.
Designed and built by TransCore, the system is intended to improve safety and incident management and will include new sign gantries, shoulder and lane control signs, speed displays, incident and queue detection, and increased traffic camera coverage.