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A footbridge (also a pedestrian bridge, pedestrian overpass, or pedestrian overcrossing) is a bridge designed solely for pedestrians. [1] While the primary meaning for a bridge is a structure which links "two points at a height above the ground", a footbridge can also be a lower structure, such as a boardwalk , that enables pedestrians to cross ...
By allowing pedestrians and bicycles to cross over the highway, these bridges were viewed as low-cost alternatives to intersections. In 1999, Las Vegas, Nevada began a major effort to install pedestrian bridges at major intersections along the Las Vegas Strip, to reduce traffic congestion and improve pedestrian safety. [1]
Grade-separated road junctions are typically space-intensive, complicated, and costly, due to the need for large physical structures such as tunnels, ramps, and bridges. Their height can be obtrusive, and this, combined with the large traffic volumes that grade-separated roads attract, tend to make them unpopular to nearby landowners and residents.
In civil engineering, clearance refers to the difference between the loading gauge and the structure gauge in the case of railroad cars or trams, or the difference between the size of any vehicle and the width/height of doors, the width/height of an overpass or the diameter of a tunnel as well as the air draft under a bridge, the width of a lock or diameter of a tunnel in the case of watercraft.
This category includes bridges used solely for pedestrian purposes, and not other bridges (rail, road, etc.) that merely include a pedestrian walkway. Bridges with pedestrian lanes or levels are also included here.
Make Roads Safe was criticised in 2007 for proposing such features. Successful pedestrian schemes tend to avoid over-bridges and underpasses and instead use at-grade crossings (such as pedestrian crossings) close to the intended route.
Roads also may be classified based on their pavement material types. For instance, the Long-Term Pavement Performance database includes more than 30 types of pavement types for roads in the US and Canada. [2] [4] [5] However, a more generic classification of roads based on material type is as follows. [5] [6] Concrete roads; Asphalt roads ...
The Veterans Memorial Parkway in London, Ontario is a modern at-grade limited-access road with intersections. A limited-access road, known by various terms worldwide, including limited-access highway, dual-carriageway, expressway, and partial controlled-access highway, is a highway or arterial road for high-speed traffic which has many or most characteristics of a controlled-access highway ...