Listener and big-rig truck driver David Huiner says he relies on the sound of his air brakes to let him know that his truck is operating safely. He gives us an example.

It’s hard to imagine what modern brake systems are capable of until you really put them to the test. Jim Park did, and came away amazed.

Air still actuates the foundation brakes, but it gets there much faster. EBSs measure braking demand by means of a sensor at the brake pedal.

The air brake test simulation allows a student to visually inspect a variety of randomized freight cars, as part of a train, while manipulating brake components as necessary to properly configure the ...