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Aroll way orrunning pad is the pad placed on aconcrete slab or on theties on the outside of the1,435 mm (4 ft 8+1⁄2 in)conventional track along bothrunning rails of arubber-tyred metro or along the unconventional track of atram. The rubber-tyred wheels roll directly on the roll ways.

• With a conventional track:
  • The ones of theMontreal Metro areprecast concrete on aconcrete slab.
  • The ones of theParis Métro areH-steel on ties.
  • The ones of theMexico City Metro are H-steel.
  • The ones of theSantiago Metro are precast concrete below ground and H-steel above ground.
  • The ones of theLausanne Métro Line M2 are H-steel.
  • The ones of theLyon Metro (lines A, B and D) are H-steel.
• Without a conventional track:
  • The ones of theLille Metro are precast concrete.
  • The ones of theToulouse Metro are precast concrete.
  • The ones of theSapporo Municipal Subway are flat steel with acentral guide rail.
  • Busan Subway Line 4 runs directly on aconcrete slab betweenguide bars.
  • Manypeople mover systems, such asCrystal Mover, run directly on concrete slabs or other surfaces between guide bars.
  • Someguided buses,rubber-tyred trams, such asTranslohr andBombardier Guided Light Transit, use concrete slabs while being guided by a singlecentral rail.

• 
  View of a track from asand drag, in the Montreal Metro near theBeaugrand Station, showing the cross-section ofguide bars,precast concrete roll ways and conventional track
• 
  Lausanne Métro Line M2, showing the angle ironguide bars and theI-beam roll ways as well asbumper posts
• 
  Lille Metro line 1 near Quatre Cantons Workshop, the absence of conventional rail for guidance at junctions is compensated by a central stubguide rail.

• The technology of rubber-tyred metros
• Translohr, uses rollways

• Visual dictionary
  • Truck and runway (bogie and roll way)
• Rail system
• VAL"Documentation technique du VAL 206 [dont le VAL 208 en est l'évolution]"(PDF).traction-electrique.ch (in French). Retrieved7 February 2023.

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