Free Republic

WASHINGTON — The two-year-old high-tech system that allows the Interstate 66 “red X” lanes to be opened outside of rush hour will be taken down within the next 12 months, WTOP has learned.The active traffic management system, which includes digital signs over each lane on a stretch of about 12 miles of I-66 just outside the Capital Beltway, cost $39 million. Work began in 2013; the system was first activated in September 2015.Construction on two HOV or toll lanes in each direction between the Beltway and Gainesville is set to ramp up this spring, and that will disrupt the system....

Dive Brief: The Pennsylvania Department of Transportation has awarded Jacobs Engineering Group a 10-year, multimillion dollar contract to design an active traffic management (ATM) system for Interstate 76 through Philadelphia, according to Traffic Technology Today. Jacobs' services for the Schuylkill Expressway will include preliminary and system engineering, design, analysis of alternatives, right-of-way acquisition and construction consultancy.The final ATM system could include occasional use of the shoulder, connected vehicle technology, variable speed limit signage and traffic jam detection and alerts. PennDOT could also implement features like ramp metering, junction control, dynamic lane assignments, and multimodal strategies in tandem with shoulder use....