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  2. Grade separation - Wikipedia

    en.wikipedia.org/wiki/Grade_separation

    The blue car entering the grade-separated road, and both the red and blue car exiting must both change lanes in the short distance provided. On roadways with grade-separated interchanges, weaving is a result of placing an exit ramp a short distance after an entry ramp, causing conflicts between traffic attempting to leave the roadway at the ...

  3. List of highest bridges - Wikipedia

    en.wikipedia.org/wiki/List_of_highest_bridges

    This bridge spans a deep river gorge. The bridge's two towers, built on the rims of the gorge, are 269 m (883 ft) tall, but due to the depth of the river gorge between the towers, the deck height of the Duge Bridge is 565 m (1,854 ft). The Millau Viaduct is a cable-stayed bridge that is both tall (in structural height) and high (in deck height ...

  4. Bus lane - Wikipedia

    en.wikipedia.org/wiki/Bus_lane

    The related term busway describes a roadway completely dedicated for use by buses, whilst bus gate describes a short bus lane often used as a short cut for public transport. Bus lanes are a key component of a high-quality bus rapid transit (BRT) network, improving bus travel speeds and reliability by reducing delay caused by other traffic.

  5. Span (engineering) - Wikipedia

    en.wikipedia.org/wiki/Span_(engineering)

    In engineering, span is the distance between two adjacent structural supports (e.g., two piers) of a structural member (e.g., a beam). Span is measured in the horizontal direction either between the faces of the supports (clear span) or between the centers of the bearing surfaces (effective span): [1] A span can be closed by a solid beam or by ...

  6. List of longest suspension bridge spans - Wikipedia

    en.wikipedia.org/wiki/List_of_longest_suspension...

    The world's longest suspension bridges are listed according to the length of their main span (i.e., the length of suspended roadway between the bridge's towers). The length of the main span is the most common method of comparing the sizes of suspension bridges, often correlating with the height of the towers and the engineering complexity involved in designing and constructing the bridge. [4]

  7. List of bus rapid transit systems in North America - Wikipedia

    en.wikipedia.org/wiki/List_of_bus_rapid_transit...

    Busway 1 Median 2 Bus Lanes 3 Bypass 2 Timed Lanes 5 Shoulder 6 HOV Lanes 7 Ltd. Stops 8 TSP 9 Bus signals 9 Regular 10 Curbside 11 Median 12 Station 13 POP 14; Brampton, Ontario: Züm: See note: See note: Five routes. Median busways and stations owned by Viva Rapid Transit: Calgary, Alberta: MAX (Calgary) Regional Municipality of Durham ...

  8. Interstate Highway standards - Wikipedia

    en.wikipedia.org/wiki/Interstate_Highway_standards

    Through urban areas, at least one routing is to have 16-foot (4.9 m) clearances, but others may have a lesser clearance of 14 feet (4.3 m). Sign supports and pedestrian overpasses must be at least 17 feet (5.2 m) above the road, except on urban routes with lesser clearance, where they should be at least 1 foot (30 cm) higher than other objects.

  9. Overpass - Wikipedia

    en.wikipedia.org/wiki/Overpass

    An overpass, called an overbridge or flyover (for a road only) in the United Kingdom and some other Commonwealth countries, is a bridge, road, railway or similar structure that is over another road or railway. An overpass and underpass together form a grade separation. [1]