A roll way or running pad is the pad placed on a concrete slab or on the ties outside along the rails of the conventional track of a rubber-tyred metro or tram.
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 (?)
The ones of the Lille Metro are precast concrete
The ones of the Toulouse Metro are precast concrete.
Without a conventional track:
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, such as Translohr and Bombardier Guided Light Transit, use concrete slabs while being guided by a single central rail
