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  2. Inclined plane - Wikipedia

    en.wikipedia.org/wiki/Inclined_plane

    Example: If the height of a ramp is H = 1 meter and its length is L = 5 meters, then the mechanical advantage is = =, which means that a 20 lb force will lift a 100 lb load. The Liverpool Minard inclined plane has the dimensions 1804 meters by 37.50 meters, which provides a mechanical advantage of

  3. Wheelchair ramp - Wikipedia

    en.wikipedia.org/wiki/Wheelchair_ramp

    A concrete wheelchair ramp A portable wheelchair ramp. A wheelchair ramp is an inclined plane installed in addition to or instead of stairs.Ramps permit wheelchair users, as well as people pushing strollers, carts, or other wheeled objects, to more easily access a building, or navigate between areas of different height.

  4. Wheelchair accessible van - Wikipedia

    en.wikipedia.org/wiki/Wheelchair_accessible_van

    An ADA compliant accessible van must meet certain requirements such as; a door height opening of 56" or greater, a ramp width of at least 30" in width, with ramp edges 2" high, and finally a ramp angle of a 6:1 ratio or rise

  5. Mechanical advantage device - Wikipedia

    en.wikipedia.org/wiki/Mechanical_advantage_device

    Two ropes laid down a ramp attached to a raised platform. A barrel is rolled onto the ropes and the ropes are passed over the barrel and handed to two workers at the top of the ramp. The workers pull the ropes together to get the barrel to the top. The barrel is a movable pulley and the MA = 2.

  6. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    as a ratio of one part rise to so many parts run. For example, a slope that has a rise of 5 feet for every 1000 feet of run would have a slope ratio of 1 in 200. (The word "in" is normally used rather than the mathematical ratio notation of "1:200".) This is generally the method used to describe railway grades in Australia and the UK.

  7. Overhang (vehicles) - Wikipedia

    en.wikipedia.org/wiki/Overhang_(vehicles)

    Along with clearance, length of overhangs affects the approach and departure angles, which measure the vehicle's ability to overcome steep obstacles and rough terrain.The longer the front overhang, the smaller is the approach angle, and thus lesser the car's ability to climb or descend steep ramps without damaging the front bumpers. [1]

  8. Half-pipe - Wikipedia

    en.wikipedia.org/wiki/Half-pipe

    Thus, it is the ratio between height and transition radius that determines the personality of a given ramp, because the ratio determines the angle of the lip. [ 4 ] On half-pipes which are less than vertical, the height, typically between 50% and 75% of the radius, profoundly affects the ride up to and from the lip, and the speed at which ...

  9. Stairs - Wikipedia

    en.wikipedia.org/wiki/Stairs

    In the UK, stair pitch is the angle the pitch line makes with the horizontal, measured in degrees. The value of the slope, as a ratio, is then the tangent of the pitch angle. Headroom is the height above the nosing of a tread to the ceiling above it. Walkline – for curved stairs, the inner radius of the curve may result in very narrow treads ...