Established in 1988, Traffic Research & Analysis, also known as TRA, offers a range of traffic data collection services. It also provides classification study, geographic information system mapping and parking lot surveying services. The company s data collection capabilities include saturation flow studies, videotaping and vehicle volume counting. Traffic Research & Analysis manages a staff of field technicians and data processors. The company additionally offers automated data validation services. Traffic Research & Analysis serves clients throughout Arizona, California and Colorado. It has more than 20 full- and part-time employees.