Railbus

A railbus is a very lightweight type passenger rail vehicle (typically non-articulated or rigid frame) that shares many aspects of their construction with a bus, usually having a bus, or modified bus body, and having four wheels on a fixed base, instead of on bogies. These railbuses, a design developed in the 1930s, have evolved into larger dimensions, performance and characteristics similar in appearance to a light railcar and today, the terms railcar and railbus are often used interchangeably.

Railbuses designed for use specifically on little-used railway lines were commonly employed in countries such as Germany, Italy, France, United Kingdom and Sweden. Today railbuses are being replaced by modern light DMU railcar designs.

Read more about Railbus:  British Rail Railbuses, German Railbuses, Australian Railbuses