Gauntlet track

Frog gauntlets are also commonly used when a rail line's capacity is increased by the provision of an additional track, but cost or other factors prevent the widening of the bridges.At a small number of locations on single track lines in Britain, interlaced loops had been provided where sprung catch points were required because of the steep gradient.In Melbourne, broad (1600 mm) and standard dual gauge gauntlet track is located within the passenger yard of Southern Cross station, and in platforms 1 and 2.In Brisbane, standard and narrow (1067 mm) dual gauge gauntlet track is located on platform 2 of Roma Street station.The Toronto Streetcar System includes a very short section of gauntlet track on Queen Street East, at Coxwell Avenue.[11] A loop allowing southbound cars to return northbound on Coxwell Avenue briefly interlaces with the westbound track on Queen Street, due to turning radius limitations.Other similar stretches were removed or re-organised, since according to the standards, gauntlet tracks on tram lines are only permitted as a temporary measure.[14] Similar arrangements exist on the approach to Kaliningrad, where 1435 mm (4 ft 8+1⁄2 in) track extends from the Polish border with some sections of dual gauge.
Triple gauntlet track at Kaufungen , Germany. Wider mainline trains go down the centre; narrower trams switch either to the left, or right, to be closer to the appropriate platform. Beyond the station, the rails return to single track.
The Torne River Railway Bridge between Sweden and Finland, with guard rails between dual gauge gauntlet track
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