On Sat, 5 Dec 2015, Dave F. wrote: > I know this has been discussed before , but recent edits by user: > abc26324 <http://www.openstreetmap.org/user/abc26324> prompts me to > ask/verify again the point of road relations in the UK. Example: > > http://www.openstreetmap.org/relation/103301#map=10/51.2112/-2.5578 > > Route relations are meant to represent, err... routes taken by people > that transverse multiple different ways; such as bus cycle etc & not > just a 'collection' of things, especially when they can easily be > collated/extracted from the ref on the actual way. > > I notice even the M4/M5 have one apiece. This has lead to tag > duplication which can never be a good thing. > > Are there any roads in GB where references are shared? If not, I see > no reason for their existence.
My wife (works for DfT, did road ref assignments) claims that a road segment can not share more than one ref. The "norwegian" situation of the 32/35 like at http://www.openstreetmap.org/way/329206956#map=13/59.5053/10.1548 can not happen in the UK. In the UK, that situation is the A14 and A11 where the A11 disappears for a strech to come back later. (Between junctions 36 and 38, http://www.openstreetmap.org/way/367772226#map=12/52.2445/0.3914) The only "exception" is that roads with a ref can have names attached to them too, but they're "unofficial" (such as the example at http://www.openstreetmap.org/way/232728113#map=19/51.53625/-0.19143 which is both A5 and "Kilburn high Road"). There is some info in https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/315783/road-classification-guidance.pdf, but it's a bit vague on this part. cheers, Derick _______________________________________________ Talk-GB mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-gb
