PSI acted as a Prime Consultant to support DC's effort to reconstruct 128 alleys in Washington, DC every year. Known as "Alleypalooza," this effort is DC's most successful community campaign. PSI's Alley system prioritizes alleyways by distress condition. A semi-automatic process was developed which included panoramic cameras, lidar, GPS, DMI, and a custom built collection vehicle.

PSI is the Prime Consultant selected to revitalize and improve Massachusetts Avenue, N.W. from Dupont Circle to Waterside Drive. This design includes streetscape, stormwater, traffic operation, safety, and landscaping improvements for over 5000ft, including Sheridan Circle. Lighting and signals will be upgraded along the boulevard, and new trees will be planted with a fuller canopy in mind. Embassy Row will have a modern streetscape design which pays homage to the boulevard's history and Beaux Arts asthetics

PSI acted as the Prime Consultant in designing 14th Street, N.W. from Thomas Circle to Florida Avenue. With a new geotmetric design, bicycalists are fully protected at major intersections.

PSI acted as Prime Consultant for the citywide ADA Inventory Project -- the latest in DDOT's ongoing efforts to provide a safe, accessible, pedestrian oriented transportation system. It establishes the data collection and analysis methodologies and procedures to perform ADA evaluation citywide, identify remedial treatments and estimated costs, prioritize remedial treatments, and track progress towards compliance.

Precision Systems, Inc. was sub-consultant to Parsons Transportations Group (PTG) for design of the traffic signal and streetlight systems for the Walter E. Convention Center. The entire project included installation of over 100 No. 16 streetlights on 12 street blocks and traffic signal modifications for 9 intersections. The electrical work on 9th Street was particularly difficult because half the street was cantilevered on top of an underground parking garage. Crowded utilities made for complicated conduit and cable design and required manholes and passways for conduits to be placed between pavement decks. Traffic and construction traffic were rerouted within 20 blocks of street network to minimize impact on city traffic. All construction materials were hauled directly through 9th Street tunnel to Virginia and through New York Avenue to Maryland. This operation involved signal modification of over 40 intersections.

PSI's TARAS2 is a SAAS software program that imports and refines crash data from MPD for engineering use. It provides quick reporting features, a comprehensive and flexible query system, and standard reports and visualization that enables DDOT engineers to approach safety improvement through a data driven process.

PSI served as sub-consultant to McKissack & McKissack, Inc. designing and implementing street lighting design plans

PSI was the Prime Consultant for this project which included traffic improvement, sidewalk reconstruction, and alternative design at the Missouri Avenue & Kansas Avenue intersection. PSI evaluated the Kennedy Street Revitalization plan and prepared preliminary and final construction documents to implement recommended streetscape improvements and traffic operation & safety improvements.

PSI served as sub-consultant to redesign the entire streetlight and traffic signal system for Columbus Plaza. This involved coordination with all Utility owners, National Park Services, Architect of Capitol, DCDOT and FHWA to complete an electrical system to support the traffic signal and streetlight design.