Roll way

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View of a track from a sand drag bumper post, in the Montreal Metro near the Beaugrand Station, showing the cross-section of guide bars, precast concrete roll ways and conventional track.
Ouchy M2 station, showing the angle iron guide bars, the bumper posts and the I-beam roll ways.

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 along the unconventional track of a tram. The rubber-tyred wheels roll on the roll ways.

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