Skid Speed Calculator
This calculator is provided without
warranty and is not applicable to any specific
proceedings or insurance claims actions. It is not a substitute for a speed analysis by a
qualified traffic accident reconstructionist.
Many 1999 and later Chevrolet, Pontiac, Buick, Saturn, Cadillac, GMC,
Hummer, Ford, Lincoln, Mercury, Dodge, Jeep, Saab, Isuzu and Chrysler cars.
trucks, vans and SUVs have an Event Data
Recorder (Black Box) on board.
These devices can record vehicle speed in
the seconds preceding a crash. You will find a current list of
vehicles, by make, year and model, with an Event Data Recorder, and much more information, here.
Harris Technical Services can recover the information in these data
Contact us if you need assistance.
Enter the grade in percent:
Use 0% for level.
Use negative ( - ) for a downhill grade.
Example: 2.5% downhill = -2.5%
Enter the length of the skid:
The result will appear in a new window. This form will reset
after each calculation.