Slope length is determined as described below in Japan.
Slope: 1/12 or less
For each 75cm height, it needs a landing of 150cm or more.
- gradient for BC and DE: 1/12 or less
- height for BC and DE: 75cm or less
- distance for CD: 150cm or more
Here, it assumes that the distance for AB and EF must be 150cm or more.
|total length when slope is 1/12(cm)|
|total length when slope is 1/15(cm)|
Wow! It needs much space for a slope.