Braking Mark
Definition
A continuous black skid produced when wheels are fully locked under braking and the tyre slides on the road. Length plus drag factor gives a minimum speed at the start of the skid.
Related terms
- Drag Factor (μ)
- The effective coefficient of friction between the tyre and the road surface during a braking event. Used in the skid-mark speed formula....
- EDR (Event Data Recorder)
- An onboard module that records pre-crash speed, throttle, brake application, steering input and seatbelt status for several seconds before airbag deployment. The...
- Gouge Mark
- A scrape or trench cut into the pavement when a metal component (frame, axle, undercarriage) strikes the road during or after impact....
- Paint Transfer
- Layers of paint left on a struck vehicle, pedestrian's clothing, or roadside object during contact. The layer sequence, ordered from primer outward,...
- Yaw Mark
- A curved, striated tyre impression produced when a vehicle slides at an angle to its direction of travel during a steered or...
Explained in
- Accident Investigation: Skid Marks, Collision and Hit-and-RunA continuous black skid produced when wheels are fully locked under braking and the tyre slides on the road. Length plus drag factor gives a minimum speed at t...