In addition, individual states also collect other types of data. Depending on the particular problem being studied, files from one or more States may be used by the analyst. The following table indicates the files that are available. Typical data includes type of accident, types of vehicle, sex and age of occupants, fixed object struck, accident severity, and weather conditions. Roadway Geometrics - Contains horizontal curve and vertical grade information.
Data includes degree of curve, length of curve, percent grade.
Intersection - Contains information on highway intersections. Data includes traffic control type, intersection type, signal phasing, and turn lanes. Interchange - Contains information on highway interchanges. Data includes interchange type and ramp characteristics. Data includes make and model, body style, body type, curb weight, and wheelbase.