The CNIB Foundation is unaware of any guidelines or standards which specify how rainbow crossings should be designed.
In the absence of any detailed studies, the following guidelines will help to ensure that pedestrians with sight loss can continue to independently navigate the built environment when rainbow cross walks are deployed.
- Ensure that the borders of a rainbow crosswalk are colour contrasted to the pavement, e.g using white stripes
- To avoid disorientation, ensure that the rainbow stripes run parallel to path of travel and extend from curb to curb.
- Ensure that a non-slip durable paint is used and,
- Ensure that the crosswalk is maintained regularly, As paint may not survive seasonal changes or road salt and the colours may fade making these crosswalks unnecessarily harder to locate for a pedestrian with sight loss.