Re: [Talk-GB] Relation for M5?

2011-10-09 Thread Colin Smale
On 09/10/2011 13:17, Ed Loach wrote: * E-routes forming a network which overlays the national network These aren't sign-posted in the UK, so what source would you use to map them? For example the E32 as described in Wikipedia here: http://en.wikipedia.org/wiki/European_route_E32 lists no source

[Talk-GB] Relation for M5?

2011-10-08 Thread Dave F.
Hi Anyone know why has the M5 motorway got a route relation dedicated to it? 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. This has lead to tag duplication which can

Re: [Talk-GB] Relation for M5?

2011-10-08 Thread MarkS
Looking at the wiki (route=road) it seems to suggest a relation can be used here. However, it stikes me that the relation should be more than just the roads without a role. The wiki suggests the road itself would have a forward/backward role, and that link roads should be in the relation

Re: [Talk-GB] Relation for M5?

2011-10-08 Thread Richard Fairhurst
Mark S wrote: Looking at the wiki (route=road) it seems to suggest a relation can be used here. Road route relations are useful in the US, and some other countries, where a section of road can belong to two routes. In the UK, each road can only belong to one route (i.e. an unambiguous ref=

Re: [Talk-GB] Relation for M5?

2011-10-08 Thread MarkS
Maybe the wiki should be updated ? However, I think route relations are quite extensive across the UK. I first came across them on the A1 but I'm fairly confident lots of other roads have them on. I'm a fan of consistency so if we remove the M5 one then we should remove the others as well.

Re: [Talk-GB] Relation for M5?

2011-10-08 Thread Colin Smale
On 08/10/2011 16:42, Richard Fairhurst wrote: In the UK, each road can only belong to one route (i.e. an unambiguous ref= tag). There is no need for road route relations; the M5 motorway is more easily defined as all ways within the UK bounding box with the tags highway=motorway* and ref=M5.

Re: [Talk-GB] Relation for M5?

2011-10-08 Thread Richard Fairhurst
Colin Smale wrote: * there are lots of stretches of roads with (ostensibly) two UK numbers (segment is shared between two routes) Nope - there aren't. That's a popular misconception. Where (for example) the A11 disappears into the A14 east of Cambridge, for example, the road really is only