Metros and light railways which ser

Metros and light railways which serve a city or large conurbation will often have lines or services which originate in outer suburbs, run through the city center and cross out to suburbs on the other side, with some converging or at least interchange with other lines or transport modes.At the beginning and end of the traffic day on such systems traffic demand will fall off,particularly in the outer areas. Because of this, some trains will often be reversed before they reach the outer terminus, reducing the train frequency in the outer suburbs. This likely pattern of operation needs to be carefully considered before the location of depots is finalized on metros, light railways and other essentially suburban commuter services.