Guide bar

Ouchy M2 station, Showing the angle iron guide bars and the I-beam roll ways

View of a track from a sandpile bumper post, in the Montreal Metro near the Beaugrand Station, showing the cross-section of guide bars, precast concrete roll ways and conventional track

The rubber-tyred metro systems that incorporate 1,435 mm (4 ft 8+1⁄2 in) track have angle irons as guide bars along the roll ways. The Busan Subway Line 4, that lacks a rail track, has I-beams installed with the flanges being vertical. The Sapporo Municipal Subway, that lacks a rail track as well, has none.

See also

• Automated guideway transit
• Flangeways
• Fourth rail
• Guided bus
• Guide rail
• Rail track
• The technology of rubber-tyred metros
• Third rail