 In any event, the warning tactile indicator pad should be no less than 900mm wide, except where that is physically impossible.Directional tactile indicators are required to be installed at cross-walks, public transport access points and significant public facilities to provide directional guidance for vision-impaired people who have to deviate from the continuous accessible path of travel in order to gain access to the aforementioned.Directional tactile indicators should always point in the directional of travel to achieve this.