A dual-mode bus, also known as a duobus or bimodal bus, is a bus that can operate using two independent power sources. Most commonly, this refers to a vehicle that combines the features of an electric
Boston Neoplan DMA-460LF dual-mode bus, operating in diesel mode (with its trolley poles lowered)
Esslingen dual-mode bus of the type Mercedes-Benz O 405 GTD, also operating in diesel mode.
The Basel trolleybus system was part of the public transport network of Basel, Switzerland, for nearly six decades. Opened in 1941, it combined after 1997 with the Basel Regional S-Bahn, the Basel tra
Basel Neoplan trolleybus no. 929 on line 31, August 2005.
Ex-Basel trolleybus 918 in service in Braşov (Romania) in 2006, still wearing BVB fleet livery