On 9 Feb 2012, at 22:23, David Earl wrote: > the part between the two sets of lights is indeed divided by a central > reservation so the NW-SE section is justifiably dual, but not the other Mount > Pleasant or Victoria Road / Histon Road approaches, at least not to anything > like the extent now shown on OSM.
If you look at the data in Potlatch with the Bing imagery, it appears to be traced pretty faithfully, at least as concerns the size of traffic island/distance between the carriageways on all approaches to that junction. It could be simplified perhaps, but on such a complex junction, there is value in having each possible route through the junction marked in full. Personally I would be happy with the general approach here. The one part I would look to modify is where Castle Street becomes Huntingdon Road, and the two dual carriageways suddenly meet at a single node (5313653). This looks ugly and doesn't reflect reality, so should be changed on both counts. > In case 2 ( http://osm.org/go/eu6_VC5Dc-- ) there are no islands whatsoever > (quite unusual nowadays at UK traffic lights, but then the main road is are > quite narrow). You'll have to look at the data to see what's been done here, > it's too close together to see on the map tiles at zoom 18. Again on SV: > http://bit.ly/zyWvaF looking east on Houghton Road from just west of the Hill > Rise junction. This does seem very OTT for the size of the junction. Personally I would change to just one way representing each road, joining them at a single node marked as a traffic light. That's my opinion, based on what feels about right to me. If there are any good guidelines that contradict me, I'm happy to stand corrected. :o) Tim
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