BP344 · Appendix A.1 · A.5 · C.1
Ramp Provisions
A.1.1Ramps shall be provided wherever there is a change in level. Minimum clear width: 1200 mm. Ramps ≥ 3000 mm wide require intermediate center handrails ("J-type" supports recommended).
A.1.2Maximum slope: 1:20 (standard). Steeper gradients up to 1:15 may be allowed in special cases. Maximum cross slope: 1:100. Level area min 1800 mm at top and bottom of ramp.
A.1.3Ramps longer than 10.50 m shall have intermediate landings min 1800 mm long. Raised edge min 100 mm on both sides.
A.1.4Warning tactile blocks: depth 600 mm, installed 300 mm from head and foot of ramp and at center of each landing.
A.1.5Handrails on both sides at 700 mm and 900 mm. 300 mm horizontal extension at upper and lower ends. Safety railing required when ramp leads toward vehicular traffic, min 1800 mm from foot.
C.1.1Accessible ramps required at entrances not at the same level as site arrival grade. Warning tactile blocks at top and bottom.
Key Dimensions
ACCESSIBLE RAMP — CRITICAL MEASUREMENTS
Min Width1200 mm
Max Slope (standard)1:20 (5%)
Max Slope (special cases)1:15 (6.67%)
Max Cross Slope1:100 (1%)
Level Area at Top/Bottom1800 mm min
Intermediate Landing1800 mm min (every 10.50m)
Raised Edge100 mm min
Tactile Warning Depth600 mm
Tactile Setback from Ramp End300 mm
Handrail Height (dual)700 mm & 900 mm
Handrail Extension300 mm horizontal
| Max Slope | Max Length | Max Rise | Landing Interval |
|---|
| 1:20 | No limit | No limit | Every 15 m |
| 1:15 (special) | 10.50 m | 700 mm | Every 10 m |
BP344
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