>>> How about this one: >>> <http://osm.org/go/0EFYMXaIH--> >>> >>> which fulfills all of the above 5 criteria, but just has a 'short-cut' >>> across one side. In this case, each 'junction' on the roundabout is >>> controlled by traffic lights and has between 2 and 5 lanes. I have to >>> navigate it frequently and I >>can't say it's one of my favourite ones! >> >>These aren't too dissimilar. Although I'm curious how your example works - >>it looks like the "short cut" is only of use for people who have come off the >>southbound carrigeway of the motorway and want to get back on the >>>>southbound carriageway - why wouldn't they just go along the motorway >>instead of taking the junction? (I presume I'm missing something important >>about who can use the shortcut lane :) > >You can use it if you come off the southbound carriageway and want to go west >(or into the services), or if you approach from the west (or from the >services) wanting to go South. In both cases you could also take the outer >loop, >although I think the signposts discourage it. I think I'm correct in >saying that the shortcut was the original part of the roundabout, and the >extra extension was built at a later stage to accommodate increased traffic as >a result of >Stansted airport just to the east. In fact a look at the google satellite imagery shows that this junction is wrong in OSM because (a) there are actually 4 carriageways passing under the roundabout, and (b) the inner 'loop' still has the entrance to the original B1256 off it, which is not on the map. Will require a visit by someone with a GPS in order to correct this, as the Yahoo imagery is from before the roadworks were finished. Donald
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