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. Data include guardrail type, post type, rail height, and terminal type. The HSIS contains only police reported accident data on the state-maintained highway system.