encyclopedia

DYNAMIC BRAKING

An electric primary braking system whereby the current derived from the motors, acting as generators, is modulated to provide controlled braking; system of retarding locomotives and/or trains by using the traction motors to generate electric current. Use of dynamic braking…

DYNAMIC ENVELOPE

The clearance required for the train and its overhang due to any combination of loading, lateral motion, or suspension failure

DYNAMIC PRICING

A toll collection strategy where tolls are continuously adjusted throughout the day according to traffic conditions to maintain a minimum designated speed.

DYNAMITER

Car with defective air brake which applies in emergency whenever air brakes are applied.