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  1. U.S. Access Board
    https://www.access-board.gov/ada/guides/chapter-4-ramps-and-curb-ramps

    Chapter 4: Ramps and Curb Ramps - United States Access Board

    • [§303.4] Ramps and curb ramps are required along accessible routes to spanchanges in level greater than ½”. Elevators and, under certain specifiedconditions, platform lifts, can be used as an a… 展开

    Slope and Cross Slope

    [§405.2] Slope represents the proportion of vertical rise to horizontal lengthand is specified in the Standards as a ratio (e.g., 1:12). It also canbe expressed as a percentage, pitc… 展开

    U.S. Access Board
    Clear Width

    [§405.5] Ramp runs must have a clear width of 36″ minimum (measured betweenhandrails where provided). The width of ramps that are part of a meansof egress may furth… 展开

    U.S. Access Board
    Rise

    [§405.6] The height of runs is limited (30″ maximum), but there is no limit on thenumber of runs a ramp may have. Long ramps with many runs can bestrenuous for people using ma… 展开

    U.S. Access Board
    Landings

    [§405.7] Level landings are required at the top and bottom of each run. Changesin level greater than 1:48 are not permitted at landings. Landings mustbe designed to prevent the accu… 展开

    U.S. Access Board
    What is a corner-type curb ramp?
    A corner-type curb ramp is located at the center (or apex) of a corner and is often aligned to direct users into the middle of an intersection. As the illustration on the right shows, the alignment of a corner-type curb ramp means that people who travel down the ramp might be near the path of vehicular traffic once they enter the street.
    archive.ada.gov
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    目录
    Slope and Cross Slope
    Clear Width
    Rise
    Landings
    What is a corner-type curb ramp?
     
  1. ADA.gov
    https://archive.ada.gov/pcatoolkit/ch6_toolkit.pdf
    [PDF]

    Chapter 6: Curb Ramps and Pedestrian Crossings Under Title II …

  3. U.S. Access Board
    https://www.access-board.gov/files/ada/guides/ramps.pdf
    [PDF]

    U.S. ACCESS BOARD TECHNICAL GUIDE Ramps and Curb Ramps

  4. ADA.gov
    https://www.ada.gov/law-and-regs/desi…

    ADA Standards for Accessible Design

    The ADA Standards for Accessible Design—along with the Title II and Title III regulations—say what is required for a building or facility to be physically accessible to people with disabilities.

  5. U.S. Access Board
    https://www.access-board.gov/ada/chapter/ch04

    Chapter 4: Accessible Routes - United States Access Board

  6. Federal Highway Administration
    https://highways.dot.gov/civil-rights/programs/ada/resources

    ADA Resources | FHWA - Federal Highway Administration

  7. ADA Compliance
    https://ada-compliance.com/ada-complian…

    ADA Ramp - ADA Compliance - ADA Compliance

    Curb ramps and ramps to be constructed on existing sites or in existing buildings or facilities may have slopes and rises as allowed in 4.1.6(3)(a) if space limitations prohibit the use of a 1:12 slope or less.

  8. ADA.gov
    https://archive.ada.gov/pcatoolkit/app1curbramps.pdf
    [PDF]

    ADA Accessibility Survey Instructions: Curb Ramps - ADA.gov

  9. ADA.gov
    https://archive.ada.gov/pcatoolkit/chap6t…

    Curb Ramps and Pedestrian Crossings Under Title II of …

    To allow people with disabilities to cross streets safely, state and local governments must provide curb ramps at pedestrian crossings and at public transportation stops where walkways intersect a curb. To comply with ADA …

  10. ADA.gov
    https://www.ada.gov/law-and-regs/design-standards/2010-stds

    2010 ADA Standards for Accessible Design