Precision Systems, Inc. (PSI) embraces technology in design. For three decades, PSI has provided transportation engineering consulting serving public and private organizations in the DC, Northern Virginia, and Maryland regions. Our portfolio includes roadway and intersection design, signal and street lighting design, traffic analysis and reporting, crash analysis and countermeasure design, software development, data management, and more. Using the newest technologies and in-house software with up-to-the-date data makes PSI engineers experts in urban environments. Our team of professional engineers, planners, inspectors, software developers, and researchers combine practical experience and state-of-the-art technology to solve day-to-day operational and design issues facing our transportation system and industry.