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Overpass in East Potomac Park, Washington, D.C.
Sandgate Flyover, where 2 main railway lines pass over two dedicated coal lines
Pedestrian overpass, I-64, St. Louis, Missouri. This overpass is located at the St. Louis Science Center.
An 'overpass' (in UK, most Commonwealth countries '''flyover''') is a bridge, road, railway or similar structure that crosses over another road or railway.
In North America, a 'flyover' is a high-level overpass, built above main overpass lanes, or a bridge built over what had been an at-grade intersection. Traffic engineers usually refer to the latter as a '''grade separation'''. A flyover may also be an extra ramp added to an existing interchange, either replacing an existing cloverleaf loop (or being built in place of one) with a higher, faster ramp that bears left. Such a ramp may be built as a right or left exit.
A pedestrian overpass allows pedestrians safe crossing over busy roads without impacting traffic.
| Contents |
| See also |
See also
★ Footbridge
★ Skyway
★ Pedestrian separation structure
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