On ground vehicles, (more formally, specified as) compressed-air-actuated braking systems:
Air brake (road vehicle), friction-mediated type of brake used on large road vehicles in place of hydraulic brakes
Railway air brake (used on both locomotives, and on towed or pushed cars)
Topics referred to by the same term
This disambiguation page lists articles associated with the title Air brake. If an internal link led you here, you may wish to change the link to point directly to the intended article.