rampelengde

Rampelengde refers to the length of a ramp measured along its surface from its lower end to its upper end. It is a central parameter in accessibility, architectural design, and transport planning, and can apply to building ramps, vehicle ramps, or stage platforms.

Calculation and guidance: The ramp length L relates to the vertical rise H and the gradient g (rise per horizontal run). If gradient is g, horizontal projection R = H / g, and the ramp length along the slope is L = sqrt(H^2 + R^2). For small gradients, L ≈ R. In practice, many guidelines specify a maximum gradient (for example about 1:12 in universal design) and require landings or rest areas after certain heights.

Applications: In accessibility design for buildings, the ramp length determines how far a person must walk and influences the need for handrails, landings, and non-slip surfaces. In road design, ramp length connects roads at different speeds and influences entering and exiting traffic.

Example: To overcome a rise of 0.6 meters with a gradient of 1:12, the horizontal length is 0.6 × 12 = 7.2 meters, and the ramp length along the slope is about sqrt(0.6^2 + 7.2^2) ≈ 7.3 meters.

Standards and safety: Rampelengde must be planned with relevant codes; longer ramps reduce slope but increase area requirements; safety features include handrails, edge protection, and non-slip finishes.