Changeset: 87536350
Refinements and improved tagging of A1307 etc cycleways between Cambridge and Swavesey Junction
Closed by Ben Harris
Tags
created_by | JOSM/1.5 (16731 en_GB) |
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source | GPS survey |
Discussion
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Comment from ACarlotti
Nice work - there are a few things here that I now realise I knew about but didn't notice or got wrong. For one thing, I now see that I misidentified a farm access as Scotland Drove, which explains why I couldn't find the features I was mapping in relation to.
A few minor issues I've noticed:
1. The mapping of the cycleways around the roundabout near Oakington suggests a more irregular layout than exists in practice - I think the mapping should be more symmetric and regular, with the current irregularity probably just an artifact of your GPS trace.
2. There are a few places where you've tweaked the cycleway alongside the A1307 to match your GPS trace, whilst not moving the carriageway, leaving an inconsistent spacing between them. The most obvious example is just east of the Swavesey junction. It would probably be good to make these match up again.
3. There's an administrative boundary running along the line of the A14 near Swavesey that was edited in this changeset. That was probably due to it accidentally sharing a node with a way. This ought to be reverted by removing any such nodes (you might need to check older history if the incorrect intersection has been around for a while).
4. I think the current tagging of the end of the cycleway near Girton will give weird routing for inbound cyclists (and possibly for outbound too) because the access and oneway restrictions force them to doubleback. I do think this is a slightly awkward area to map, and that this is a relection of this currently being an awkward area to actually cycle - hopefully we can get some better joined-up infrastructure here in the near future.
I might have a look at fixing some of these points myself later, but I don't have the time to do so right now. -
Comment from Ben Harris
1: There were indeed some gratuitous GPS artifacts, and I've corrected those. However my photos do indicate that paths aren't entirely symmetric. For instance, the outer crossing of the Bar Hill exit has a strange cut-out from one corner that's missing from the others. I don't think we can do much better without aerials.
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Comment from Ben Harris
2: I've dealt with the divergence around Buckingway Business Park. I corrected another one yesterday.
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Comment from Ben Harris
4: Yes; what's on the ground is currently pretty incoherent, and the map data reflects that. It might be reasonable to remap the farm entrance as a public connection between that carriageway and the cycle path, but it didn't seem appropriate to do that if that wasn't how it was meant to be used.
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Comment from Ben Harris
3: It looks like you accidentally attached the boundary #114454952 to node #6876513590 in changeset #75637329. I've detached it again.
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Comment from ACarlotti
3: Oh, oops. Good investigating - when I fixed two issues with that boundary in May, but somehow missed the one I introduced myself in October (probably because I didn't look at the history of the split apart of the way).
1: I guess I must have oversimplified it in my memory - despite having looked at plans of the layout in the Northstowe planning documents only the day before. I think your subsequent changes are probably an improvement, but this is probably an example of where using a way to approximate an area is difficult.
4: That might help to reflect how it can actually be used in the current layout. I just had another look at the plans, and the ones on the website unhelpfully have a label covering this location. The other ones I can find just show it coming to a dead stop, as if they were expecting someone else to fill in the gap (as is happening near Northstowe).
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