摘要: |
This codebook documents datasets describing motor-vehicle traffic accidents that occurred in the State of Maryland during calendar year 2001. The datasets were developed by the Transportation Data Center at the University of Michigan's Transportation Research Institute (UMTRI) from data supplied by the Maryland State Patrol. The original data in the Maryland STARS protocol (State Traffic Accident Reporting System) have been formatted into three rectangular datasets documenting accident level, vehicle level, and person level information elements. |