Changeset: 122632581
add cycle lane
Closed by AyushS183
Tags
created_by | JOSM/1.5 (18463 en_GB) |
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source | tfl cycle database |
Discussion
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Comment from rskedgell
The cycle lanes which you added to Chobham Road (w10818748) no longer exist, as examination of Bing aerial imagery and Mapillary clearly show.
The TfLCID data is now several years old and needs careful conflation wit existing OSM data, not an undiscussed import which overwrites mapping by contributors who have actually surveyed the infrastructure and checked the imagery.
#DWG
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Comment from AyushS183
Thank you for your observation. I have use this site to verify the edit, https://bikedata.cyclestreets.net/tflcid:type=cycle_lane_track/#18.97/51.5492408/-0.0022789/0/10 and even this https://bikedata.cyclestreets.net/tflcid:type=cycle_lane_track/#18.97/51.5492408/-0.0022789/0/10. As you can see there are small bike lanes present in that area, the edit seems valid. Hope this clears it.
Thank you
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Comment from SomeoneElse
@AyushS183 Just to make it absolutely clear - the suggestion above is that the data on that site is _incorrect_. Can you perhaps go to the street in person and verify the correct situation?
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Comment from AyushS183
I'm sorry I pasted wrong link. https://www.mapillary.com/app/user/rskedgell?lat=51.54914052&lng=-0.00303487&z=17&pKey=301767491466593&focus=photo&x=0.48716956476524376&y=0.3736900150339237&zoom=0 this is the right on. Hope this clarifies otherwise I'll try to verify in person.
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Comment from rskedgell
@AyushS183 The problem is that the tool you have used to "verify" the import shows that (advisory) cycle lanes *were* present on this segment of Chobham Road in October 2017, when TfL's surveyors checked assets RWG154882 and RWG155596.
Even the most cursory examination of Bing aerial imagery (date uncertain, but certainly more recent than 2017) shows that the footways/sidewalks have been widened and have cycle pictograms indicating that they are shared cycle tracks.
There is also Mapillary imagery from February 2020 available, as pointed out in my original comment.
Mapping historic "low quality" cycle infrastructure like advisory lanes, when it has been replaced with "better" infrastructure with physical separation, is somewhat unhelpful to users wishing to use OSM maps or data to plan cycle routes.
In the light of recent legislative changes regarding the enforcement of parking and moving traffic contraventions in mandatory cycle lanes (cycleway:lane=exclusive), not importing the type of lane from TfLCID may also be a questionable choice.
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Comment from rskedgell
@AyushS183 there are two sets of Mapillary images on that section of street. The link you posted is to imagery from 2015!
Please could you confirm whether or not your edits are part of the TfLCID conflation done on behalf of TfL by Sweco UK Limited?
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Comment from AyushS183
Yes, this is part of that effort. This feedback is really helpful. We have been mindful about validating using this data source due to the potential for it to be outdated, however I agree its clearly not appropriate in this instance.
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Comment from SomeoneElse
@AyushS183 Please do ensure that you follow https://wiki.osmfoundation.org/wiki/Organised_Editing_Guidelines - inclduing making sure that a project page is set up and your profile (and the profiles of any other mappers taking part in this project) link to it.
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Comment from Mateusz Konieczny
Note that this import utterly ignored feedback. See for example https://lists.openstreetmap.org/pipermail/imports/2022-June/006879.html
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Comment from Mateusz Konieczny
@SomeoneElse Is DWG planning to revert edits done as part of that import?
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Comment from SomeoneElse
@Mateusz I've replied to the original talk-gb thread at https://lists.openstreetmap.org/pipermail/talk-gb/2022-June/029093.html and suggested that either the mapper here or their supervisor engage there.
We (the DWG) will take advice from people familiar with the areas
affected to decide whether a revert of the data imported so far is the
best way forward.
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- London Buses route N8 → Oxford Circus (3072061), v224
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