structural:summarization, linguistic:voice_change, quality:corruption
Route-setting

Where tracks diverge, the driver chooses the route, usually either by flicking a switch on the dashboard or by use of the power pedal – generally if power is applied the tram goes straight on, whereas if no power is applied the tram turns. Some systems use automatic point-setting systems, where the route for each journey is downloaded from a central computer, and an onboard computer actuates each point as it comes to it via an induction loop. Such is the case at Manchester Metrolink. If the powered system breaks down, most points may be operated manually, by inserting a metal lever ('point iron') into the point machine.