Abstract
The accident Data Subsystem of the State Traffic Records System has the primary functional objective of serving the operational requirements related to the collection and maintenance of data on traffic accidents occurring within the State. The subsystems consist of an accident case directory file, a basic case data file, a fatalities analysis supplement file, and an in-depth investigation supplement file. The data contents of the four subsystems files are summarized and detailed recommended coding formats and codes for the data elements contained in the subsystem files are described.