Roll way

rdf:langString Roll way

rdf:langString A roll way or running pad is the pad placed on a concrete slab or on the ties on the outside of the 1,435 mm (4 ft 8+1⁄2 in) conventional track along both running rails of a rubber-tyred metro or along the unconventional track of a tram. The rubber-tyred wheels roll directly on the roll ways. * With a conventional track: * The ones of the Montreal Metro are precast concrete on a concrete slab. * The ones of the Paris Métro are H-steel on ties. * The ones of the Mexico City Metro are H-steel. * The ones of the Santiago Metro are precast concrete below ground and H-steel above ground. * The ones of the Lausanne Metro Line M2 are H-steel. * The ones of the Lyon Metro (lines A, B and D) are H-steel. * Without a conventional track: * The ones of the Lille Metro are precast concrete. * The ones of the Toulouse Metro are precast concrete. * The ones of the Sapporo Municipal Subway are flat steel with a central guide rail * Busan Subway Line 4, runs directly on a concrete slab between guide bars * Many people mover systems, such as Crystal Mover, run directly on concrete slabs or other surfaces between guide bars * Some guided buses, rubber-tyred trams, such as Translohr and Bombardier Guided Light Transit, use concrete slabs while being guided by a single central rail