A commonly used phrase by roller coaster enthusiasts is Air Gate. These are the gates in roller coaster stations that prevent riders from walking in front of the roller coaster train when its not stationery at the ride station. The name is based on the fact that the gates are often controlled using air pressure.
Alternatives to Air Gates
Calling them “air gates” implies that they are air operated, which may not always be the case. Alternatives include manually operated gates, spring-loaded gates with magnetic catches, motor actuated gates, and on rare occasion no gates at all. Often on rides where no air gates are present riders are prevented from entering the station platform until the train is stationary.
An Additional Ride Safety Feature
Air Gates often act as a safety feature, linked to the rides control unit they prevent the roller coaster train from being dispatched until they are closed. In addition to this the air gates will not open until the train is stationary in the roller coaster station.
Revolution at Blackpool Pleasure Beach is an example of a roller coaster ride with no air gates.