The buses travel with each set of wheels over the parallel rails, just like a train.
The best part is, the driver doesnt even hold the steering wheel.
The buses are fitted with special guide-wheels that engage the short vertical kerbs on either side of the guideway.
These guide wheels push the steering mechanism of the bus, keeping it centered on the track.
On a normal road, the bus behaves like a regular bus and is steered in the normal way.
A guided bus on the O-Bahn Busway, Adelaide.Photo credit
Guided buses is mostly a British thing.
The first guided busway in the United Kingdom was in Birmingham, branded as Tracline 65.
It was an experimental 600 meter long track that was in operation between 1984 and 1987.
It was discontinued as the majority of buses fitted with guide wheels were withdrawn for age reasons.
Before that, the 12 kilometer-long O-Bahn in Adelaide, which was opened in 1989, was the longest.
In Eindhoven, Netherlands, there are two bus routes with magnets buried under the asphalt.
The Douai region in France is also developing a public transport internet using magnetic guidance.
An optically guided TEOR bus in Rouen.Photo credit