External path obstructions in ground
- Openings can include grates or grilles for landscape or drainage.
- Small holes can catch canes and wheels and should be avoided.
- Large unmarked openings such as for tree pits or where construction is not completed will not be allowed in or adjacent to accessible paths.
- Following should not be located in accessible paths:
o Drainage inlets
o Catch basins
o Tree grates
- Where these are already located in accessible path, they should be either relocated or a new accessible path found
External path uneven surfaces
- Uneven surfaces may be caused by manhole covers, loose bricks, holes in paving, gaps in paving where not constructed
- The use of irregular surface materials can cause trip hazard and should be avoided. Examples include crazy paving, cobblestones, loose gravel and any other material that is not firmly fixed or can be moved.
- Where uneven surfaces exist (such as historic areas) then a level and stable accessible path should be provided as an alternative route.
External paths height obstructions
- The clear height for headroom in accessible paths is minimum 2100mm above floor.
- No objects that are between 650-2100mm should protrude more than 100mm into accessible paths.
- Any object below 650mm can protrude into the space but must not reduce the total width of path
- This height measurement is taken from the leading edge of the object as shown in diagram
Level changes beside external paths
- If there is a change in level to the side of an accessible path that is between 200mm and 600mm then edge protection is required to avoid dangerous falls
- Edge protection should be a colour contrasted kerb at minimum of 75mm height
- If the change in level to side of accessible path is greater than 600mm then a guard rail that complies with Saudi Building Code is required.
External path width
- The clear width of an accessible path should be above 1800mm.
- When there is proven to be restricted space, a minimum of 1200mm may be allowed.
- Materials of contrasting colour and texture should be used to define the edge of an accessible path.
- Where the size of path is below 1800mm then there needs to wider passing places for two wheelchairs to pass easily.
- Passing places should be spaced at not more than 30 metres apart.
- Passing areas should be set back from accessible paths so not to cause obstruction to movement
External path width obstacles
- Street furniture should be placed adjacent to the accessible path but should not reduce its width to below minimum requirements.
- For consistency, street furniture should be placed along a continuous zone of the public realm to allow it share space with other objects that do not obstruct the accessible path.