North Avenue Signal Timing Optimization

Project Name: North Avenue Signal Timing Optimization

Project Location: North Baltimore, MD

Client: SWA and Baltimore City

Description of Project: Develop and perform signal timing optimization of North Avenue signal timing optimization performed along North Avenue between Pennsylvania Avenue and Belair Road/Gay Street, composed of twenty-seven signalized intersections on North Avenue, plus an additional signalized intersection south of North Avenue.

T3D’s Role in Project: Conduct comprehensive existing condition data, including but not limited to roadway geometry data, intersection data, traffic volume data, parking information, traffic control, existing signal phasing, and existing pedestrian crossing information. Prepare existing condition for the “before” optimization condition using Synchro signal timing optimization software. Define coordination zones for the signal network and optimize signal timing for the “after” optimization condition. Compare the results between the “before” and “after” conditions data, and summarizes the benefits of optimizing and coordinating signal timing. Benefits are measured in terms of travel time savings, reduction in vehicle operating costs (measured in stops per vehicle), fuel consumption savings, and emissions reductions.

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Duke Street Congestion Mitigation Project

Project Location: Alexandria, VA

Client: Alexandria City

Description of Project: is to relieve traffic congestion along the Duke Street corridor from South Walker Street to the west and Dove Street to the east by implementing traffic responsive signal controls with optimized coordination timing plans, installing improved vehicle detection and installing accessible pedestrian signals. The corridor has peak and non-peak period vehicle demands that can be predicted for a typical day, however, the corridor is also impacted by non-recurring occurrences on both I-395and I-95/495, which cannot be predicted. The benefit of traffic responsive control is the ability to implement timing plans based on the non-predicted occurrences.

T3D’s Role in Project: Evaluate the existing traffic signal operations on Duke Street from South Walker Street to Dove Street. Provide recommendations for equipment and technology upgrades. Develop the plans and procurement documents for upgrades to the traffic control system, communications network equipment and infrastructure, system detectors on Duke Street, local intersection operations on Duke Street, and pedestrian operations on Duke Street. Update traffic signal timing plans and enhancing pedestrian operations within the corridor. Develop and implement traffic responsive signal timing operations.

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Northern Baltimore Network Signal Timing Optimization

Project Name: Northern Baltimore Network Signal Timing Optimization

Project Location: North Baltimore, MD

Client: SWA and Baltimore City

Description of Project: Develop and perform signal timing optimization of the north Baltimore network, composed of forty-one signals on 8 segments on the following corridors: Charles Street, Cold Spring Lane, Greenspring Avenue, University Parkway, St. Paul Street, 39th Street, 40th Street, and 41st Street. The goals established for signal timing optimization is to reduce stops and delays by 10%, reduce overall emissions, and reduce travel times.

T3D’s Role in Project: Conduct comprehensive existing condition data, including but not limited to roadway geometry data, intersection data, traffic volume data, parking information, traffic control, existing signal phasing, and existing pedestrian crossing information. Prepare existing condition for the “before” optimization condition using Synchro signal timing optimization software. Define coordination zones for the signal network and optimize signal timing for the “after” optimization condition. Compare the results between the “before” and “after” conditions data, and summarizes the benefits of optimizing and coordinating signal timing.