Safety on Stairs: nosings in a contrasting colour to the rest of the stair help people identify the stairs
Provide colour contrasted, non-slip strips for the full width, and at the edge of the top and bottom step so these can be detected.
Closed risers and rounded nosings prevent users catching their feet between steps. Step dimensions should be consistent, as uneven steps interrupt walking rhythm and are a high trip risk.
External steps should have a maximum rise of 180mm and a minimum tread of 310mm.
For people with mobility impairments, people carrying items, children, and in areas of high pedestrian traffic, an ideal maximum rise of a single flight of steps is 1800mm.
Nosings of the stairs have strong colour contrast, which assists people, especially those with low vision, to detect the edge of each step.
The black nosings on the white stairs have strong colour contrast. This is particularly helpful for people with low vision.