Editing Trolleybus (section)

===Comparison to trams===
*Cheaper infrastructure{{snd}}The initial start up cost of [[tram]]s is much higher, due to rail, signals, and other infrastructure. Trolleybuses can pull over to the kerb like other buses, eliminating the need for special boarding stations or boarding islands in the middle of the street, thus stations can be moved as needed.
*Better hill climbing{{snd}}Trolleybuses' [[rubber]] tyres have better [[adhesion]] than trams' steel wheels on steel rails, giving them better hill-climbing capability and braking.
*Easier traffic avoidance{{snd}}Unlike trams (where side tracks are often unavailable), an out-of-service vehicle can be moved to the side of the road and its trolley poles lowered. The ability to drive a substantial distance from the power wires allows trackless vehicles to avoid obstacles, although it also means a possibility that the vehicle may steer or skid far enough that the trolley pole can no longer reach the wire, stranding the vehicle. Trackless trolleys also are able to avoid collisions by manoeuvring around obstacles, similar to [[bus|motor buses]] and other road vehicles, while trams can only change speed.
*Quietness{{snd}}Trolleybuses are generally quieter than trams.
*Easier training{{snd}}The control of trolleybuses is relatively similar to motorbuses; the potential operator pool for all buses is much larger than for trams.