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| | TRACKLESS TROLLEYS WERE COST EFFECTIVE |
 | | This combination trackless trolley, and gas or diesel-electric bus, was called an "all service vehicle". |
 | | With an all service vehicle, when the end of the overhead electric wires was reached, the trolley poles could be hooked down to the roof, and a gasoline or diesel engine could be started, which drove a generator, which generated the electricity needed by the electric motors, to run the vehicle. |
 | | When the all service vehicle, returned to the part of the route where overhead power lines were available, the trolley poles could be raised, to again collect power from the overhead wire, and save on gasoline or diesel fuel. |
| www.trolleystop.com /tracklesstrolley.htm (527 words) |
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