Guided Bus
Guided buses are buses steered for part or all of their route by external means, usually on a dedicated track. This track, which often parallels existing roads, excludes other traffic, permitting the maintenance of reliable schedules on heavily used corridors even during rush hours.
Guidance systems can be either physical, such as kerbs, guide bars or remote, such as optical or radio guidance.
On kerb-guided buses (often abbreviated to KGB) small guide wheels are attached to the bus which engage vertical kerbs on either side of the guideway. These guidewheels push the steering mechanism of the bus from side-to-side, keeping the bus centralised on the track. Away from the guideway, the bus is steered in the normal way. The start of the guideway is funnelled from a wide track to the normal width. This system permits high-speed operation on a narrow guideway as well as precise positioning at boarding platforms, facilitating access for the elderly and disabled. It is also possible to get electrical propulsion, sometimes called rubber-tyred trams.
Read more about Guided Bus: History, Rubber-tyred "trams", Examples of Guided Busways
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