Running Rails

Some articles on rail, rails, running rails:

Rack Railway - Switches
... rely on the rack for driving (with the conventional rail wheels undriven) such as the Dolderbahn in Zurich, Štrbské Pleso in Slovakia and the Schynige Platte rack railway ... The Dolderbahn switch works by bending all three rails, an operation that is performed every trip as the two trains pass in the middle ... If the rack is elevated above the running rails, there is no need to interrupt the running rails to allow passage of the driving pinions of the engines ...
London Underground Infrastructure - Electrification
... in Great Britain The Underground is one of the few networks in the world that uses a four-rail system ... The additional rail carries the electrical return that on third-rail and overhead networks is provided by the running rails ... A top-contact third rail beside the track is energised at +420 V DC, and a top-contact fourth rail centrally between the running rails is at -210 V DC, combining to provide the traction ...
Railway Electrification System - Direct Current - Fourth Rail
... in England is one of the few networks that uses a four-rail system ... The additional rail carries the electrical return that, on third rail and overhead networks, is provided by the running rails ... London Underground, a top-contact third rail is beside the track, energized at +420 V DC, and a top-contact fourth rail is located centrally between the running rails at −210 V DC, which combine to provide a ...

Famous quotes containing the words rails and/or running:

    The train’s gone, the rails are cold.
    Russian saying, trans. by Vladimir Ivanovich Shlyakov (1993)

    The road became a channel running flocks
    Of glossy birds like ripples over rocks.
    Robert Frost (1874–1963)