 The tactile surface should be laid at the beginning and end of the shared segregated route, at regular intervals along its length, and at any junctions with other pedestrians or cyclist routes.The purpose of the guidance path surface is to guide vision-impaired people along a route when the traditional cues, such as a property line or kerb edge, are not available.It can also be used to guide people around obstacles, for example street furniture in a pedestrianized area.