This attribute indicates that part or all of the RouteLink passes through an area that may pose an impediment to passage for users or a level of risk.
Only RouteLink features with the descriptiveTerm of ‘No Physical Manifestation’ or ‘Path’ are eligible to have the potentialHazard attribute populated. Values may be multiple if appropriate.
This attribute is particularly relevant where a RouteLink feature has been provided with a descriptiveTerm of ‘Route Without Physical Manifestation’, as some legal rights of way may pass over problematic or even dangerous terrain and may need to be excluded from any route options.
For all other navigableLink features, this value is null.
Classification of hazardous terrain that may pose a risk or impediment to passage.
| Value | Description |
|---|---|
Foreshore is added to all links that are intertidal.
Boulders
The route passes through an area of boulders.
Cliff
The route passes over an area of cliffs.
Quarry Or Pit
The route passes through an active or disused excavation, for example, a pit or quarry.
Foreshore2
The route passes through an area that is covered by the tide at normal High Tides in England and Wales and an area that is covered by the tide at normal Spring High Tides in Scotland.
Note that paths near the High Water Mark may also be covered when tides are higher than the marks that Ordnance Survey record – normal High Tides in England and Wales and Spring High Tides in Scotland.
Marsh
The route passes through an area of marsh.
Mud
The route passes through an area of mud.
Sand
The route passes through an area of sand.
Scree
The route passes through an area of scree.
Shingle
The route passes through an area of shingle.
Spoil
The route passes through an area of deposited material.
Rock
The route passes over an area of surface rock.
Tidal Water
The route passes through an area of permanent tidal water.
Inland Water
The route passes through an area of permanent non-tidal water.