roll way
{{Short description|Tracks for rubber-tyred metros}}
{{confuse|Runway}}
{{Unreferenced|date=January 2023}}
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A roll way or running pad is the pad placed on a concrete slab or on the ties on the outside of the {{Track gauge|sg|lk=on}} 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 Métro 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.
Gallery
Image:QC-STM GarageBeaugrand 20040706-132759 VoieEssai.jpg|View of a track from a sand drag, in the Montreal Metro near the Beaugrand Station, showing the cross-section of guide bars, precast concrete roll ways and conventional track
Image:M2-Ouchy-train-arrive+track.jpg|Lausanne Métro Line M2, showing the angle iron guide bars and the I-beam roll ways as well as bumper posts
File:Ligne 1 du métro de Lille Métropole - Garage-atelier des Quatre Cantons (11).JPG|Lille Metro line 1 near Quatre Cantons Workshop, the absence of conventional rail for guidance at junctions is compensated by a central stub guide rail.
See also
- The technology of rubber-tyred metros
- Translohr, uses rollways
External links
- [https://infovisual.info/transport Visual dictionary]
- [http://www.infovisual.info/05/050_en.html Truck and runway (bogie and roll way)]
- [http://railsystem.net/rubber-tyred-metro-2/ Rail system]
- VAL {{Cite web|url=http://www.traction-electrique.ch/documents/Fich0681.pdf|title=Documentation technique du VAL 206 [dont le VAL 208 en est l'évolution]|website=traction-electrique.ch|access-date=7 February 2023|lang=fr}}
{{Rail tracks}}
{{rail-transport-stub}}