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  2. Wheelchair ramp - Wikipedia

    en.wikipedia.org/wiki/Wheelchair_ramp

    In the US, the Americans with Disabilities Act (ADA) requires a slope of no more than 1:12 for wheelchairs and scooters for business and public use, which works out to 1 foot (305 mm) of ramp for each one inch (25.4 mm) of rise. For example, a 20-inch (510 mm) rise requires a minimum of 20 feet (6.10 m) in length of ramp.

  3. Cross slope - Wikipedia

    en.wikipedia.org/wiki/Cross_slope

    Cross slope, cross fall or camber is a geometric feature of pavement surfaces: the transverse slope with respect to the horizon. It is a very important safety factor. Cross slope is provided to provide a drainage gradient so that water will run off the surface to a drainage system such as a street gutter or ditch.

  4. Curb cut - Wikipedia

    en.wikipedia.org/wiki/Curb_cut

    A pram ramp with tactile paving that connects a sidewalk to a road. A curb cut , curb ramp, depressed curb, dropped kerb , pram ramp, or kerb ramp is a solid (usually concrete) ramp graded down from the top surface of a sidewalk to the surface of an adjoining street. It is designed primarily for pedestrian usage and commonly found in urban ...

  5. Noncompliant downtown parking decks get ADA upgrades ... - AOL

    www.aol.com/noncompliant-downtown-parking-decks...

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  6. Drainage gradient - Wikipedia

    en.wikipedia.org/wiki/Drainage_gradient

    Typically on straight road sections, the drainage gradient is at least 1–3% due to the normal cross slope of 1–3%. In curved sections the drainage gradient is higher, and may often reach 5–12% due to superelevated CS that may reach 5–8% in areas with icy roads and up to 12% in areas without icy roads.

  7. Curb cut effect - Wikipedia

    en.wikipedia.org/wiki/Curb_cut_effect

    A curb cut. The curb cut effect is the phenomenon of disability-friendly features being used and appreciated by a larger group than the people they were designed for. The phenomenon is named for curb cuts – miniature ramps comprising parts of sidewalk – which were first made for wheelchair access in particular places, but were also welcomed by people pushing strollers, carts or luggage.

  8. Geometric design of roads - Wikipedia

    en.wikipedia.org/wiki/Geometric_design_of_roads

    The cross section of a roadway can be considered a representation of what one would see if an excavator dug a trench across a roadway, showing the number of lanes, their widths and cross slopes, as well as the presence or absence of shoulders, curbs, sidewalks, drains, ditches, and other roadway features.

  9. Cant (road and rail) - Wikipedia

    en.wikipedia.org/wiki/Cant_(road_and_rail)

    In civil engineering, cant is often referred to as cross slope or camber. It helps rainwater drain from the road surface. Along straight or gently curved sections, the middle of the road is normally higher than the edges. This is called "normal crown" and helps shed rainwater off the sides of the road. During road works that involve lengths of ...