Is this a Train or a Bus?

Or

Have you ever seen this kind of bus track before ?

This special track is called the O-Bahn Busway and it is a guided busway that is part of Australia’s Adelaide bus rapid transit (BRT) system.
It was conceived by Daimler-Benz as a measure to beat traffic congestions.

The special buses that ply the 12 kilometres (7.5 mi) long route are equipped with guide-wheels (tiny wheels at the front of the front wheels) that steers them along the raised edge of the track.

See How Mercedes-Benz BRT Buses Drive Like Trains On This Special Guided Busway below!!

http://automilas.com/2018/11/12/how-mercedes-benz-brt-buses-drive-like-trains-on-this-special-guided-busway/