- Ramps should be used when a change in level has a gradient greater than 5%.
- The maximum slope is 8% or 1:12.
- The maximum cross fall gradient is 2%.
- The slope of a ramp must meet the specifications shown in table
Ramp runs shall fulfil the following requirements:
- The maximum length is 10 meters between landings.
- The beginning and the end of each ramp run shall have a warning surface following the requirements of warning surfaces section
- The run usable width shall be 1000 mm.
- Ramp widths shall be free of obstacles. The usable width of 1000 mm is measured between the handrails. If the ramp is open, it shall have an outside edge protection
or a lateral protection element of at least 100 mm in height.
- Curved ramps are not permitted.
Landings shall fulfil the following requirements:
- There are level landings required at the beginning and at the end of every ramp run. These landings shall have a minimum surface of 1500 mm x 1500 mm.
- Landings should be level with less than 2% slope in the course of travel and crosswise directions.
- Corridors located in landings shall have no less than 1200 mm width.
- Doors shall be located at least 1500 mm away from the start or end of each ramp run.
|Maximum Rise||Slope||Length between landings|
|1500 mm||5.1% - 6%||8%||7 meters||10 meters|
|1000 mm||≤ 7%||8%||5 meters||7 meters|
|500 mm||≤ 8%||8%||2 meters||5 meters|
Ramps used only when gradient of level >5%
Slope is ≤8% or 1:12
Cross fall gradient ≤2%
Run length ≤10 meters
Run width = 1000 mm between handrails
No curved ramps
Landings at the beginning and end of every run -surface 1500mm x 1500mm
Level landings or ≤2%
Corridors in landings width ≥1200 mm width
No door located at ≤1500mm from start and or end of each ramps
Glossary of Terms
Ramps are inclined surfaces that join different levels of a space. Commonly used at the entrances of buildings to accommodate level changes, ramps provide building access to wheelchair users. The maximum slope of a ramp is calculated to provide comfortable and easy access to the building.
This is the measurement of the incline of the ramp’s surface. The steeper the gradient, the more difficult it will be to travel up for some people and the more risk of falls when wet. The shallower the gradient, the easier it is to walk or use a wheelchair.
A ramp is comprised of horizontal sloped ramp runs which are the inclined sections that allow changes in level to be achieved comfortably. Ramp runs are connected by level landings which allow users to stop and take a rest.
Truncated domes in a grid pattern to provide a tactile surface under feet of blind users. They are used as a used as a warning of upcoming level changes or obstacles on the course of travel.
Pendulum test value (PTV) is a measurement of the slip resistance of a floor surface, either an external or internal floor of a building. The least slip resistance a surface material is, the more likely people may skid or trip, especially in wet conditions. In average circumstances, slip-resistance is as follows:
0-18 = very low slip-resistance.
18-25 = moderate slip-resistance.
25-36 = good slip resistance.
Tactile pavements are textured surfaces with contrasted colour that are perceptible and identifiable by feel or cane or residual functional vision that warns or informs people with visual disabilities.