[OSM-talk] Advanced Relationships

[Peter Miller]

I have added a summary of Relationship Attributes to the GDF page. GDF
allows more that 2 features in a relationship (which is required for
prohibited manoeuvre etc).

 

I think we are pretty close to this model already and recommend we borrow
what we can from the standard.

 

 

Peter

 

Relationship Attributes 

The following relationship attributes are defined 

*	'in' (Road Element 'is in' Administrative Area) 

*	'along' (Building 'along' Built-up Area) 

*	'at' (Service 'at' Junction) 

*	'leading to' (Road Element 'leading to' Enclosed Traffic Area) 

*	'belongs to' (Centre Point of Feature 'belongs to' Feature) 

*	'related to' 


In addition to the above, there are also some specific relationships 

*	Prohibited Manoeuvre (two ordered Road Elements and a Junction) 
*	Restricted Manoeuvre (two ordered Road Elements and a Junction) 
*	Priority Manoeuvre (two ordered Road Elements and a Junction) 
*	Grade Separated Crossing (two ordered Transportation Elements and a
bridge or tunnel) 
*	Divided Junction 

http://wiki.openstreetmap.org/index.php/GDF#Attributes

 

 

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