Curb ramp

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A curb ramp is an accessible transition from the low side of a curb to the high side (usually 15 cm change in level). Accessible curb ramps are a minimum of 1 meter wide. They are sloped no greater than 1:12 (8.33%), which means that for every twelve meter of horizontal distance, they rise no more than one meter. The concrete curb ramp is sometimes scored with grooves which allow for traction and water runoff, may be stained a color that significantly contrasts with the adjacent concrete. If a curb ramp contains flared sides, they are usually no greater than 1:10 slope.