These brakes reduce the speed of the train.
All units had a dynamic brake to reduce the wear of the brake pads.
Inboard front brakes (as well as independent suspension) reduced unsprung weight.
Inboard brakes at the rear and an innovative hub/rim arrangement reduced unsprung weight.
Fitted originally to airplanes in the 1950s, anti-lock brakes have significantly reduced the number of heavy vehicle accidents.
Contrary to popular belief, antilock brakes don't substantially reduce stopping distances on most surfaces.
The ceramic brakes also reduce unsprung mass by around 50% and thereby improve steering response and overall handling.
If, as expected, anti-lock brakes reduce accidents, insurance rates would probably drop.
A well designed muzzle brake can significantly reduce recoil, turning a rifle that would otherwise be punishing to shoot into a far more tolerable experience.
A conventional control system will use the brakes to reduce the speed of the faster moving wheel (which is the one with less traction)and reduce engine power.