Changeset: 111051481
edit Richmond intersection
Closed by Supt_of_Printing
Tags
changesets_count | 5242 |
---|---|
created_by | iD 2.20.1 |
host | https://www.openstreetmap.org/edit |
imagery_used | Bing aerial imagery |
locale | en |
warnings:crossing_ways:building-highway | 1 |
warnings:crossing_ways:highway-highway | 5 |
warnings:crossing_ways:highway-railway | 5 |
warnings:outdated_tags:noncanonical_brand | 4 |
Discussion
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Comment from Diacritic
Hi Supt_of_Printing,
This change appears to have broken a couple of turn restrictions at the Olympic Boulevard U-Turn lanes. Namely, moving way n9081524128 of the intersection node has created two additional junction nodes; nodes that don't appear to be neccessary. Having these additional junction nodes causes problems for routing services and can create unusual turn instructions that don't make sense for the real world.
I'm not exactly sure why the turn u-turn lanes have changed from link ways either; to me it makes more sense for these to be considered as links to other streets rather than routes on ther own.
Lastly, the geometry adjustments at Brunton Avenue have caused a mismatch between the lane restrictions, and the left turn lane of Brunton Avenue has been extended past where it returns to a single carriageway. The roadway also doesn't curve like the road you've drawn turning onto Punt; A car turning left onto Punt doesn't need to do a slight right before turning left onto the road; I would argue that drawing the right hand turn as such a steep curve doesn't accurately represent the nature of the junction; it's not a merge from a slip lane, it's a right hand turn.
Happy to hear your thoughts on this.
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Comment from Diacritic
Upon looking further, it appears your geometry changes have actually undone a significant amount of work I did in a recent edit, to remove duplicate ways where the carriageway is not split. The Right turn lane from Punt to Olympic, for example, has been split up the road from where it is actually separated. Routing software would interpret this as a fork in the road with a slip lane, rather than a right turn lane that ends before the main set of lights.
Traffic lights have been moved from where the vehicles would stop to different locations.
I'd like to clarify the reasons for this edits and moving the turn lanes away from where the carriageways split?
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Comment from SomeoneElse
Related to the above, I asked on IRC for examples of documentation in the OSM wiki on this sort of thing and someone suggested https://wiki.openstreetmap.org/wiki/Lanes#Motorway_with_lanes_and_destinations and https://wiki.openstreetmap.org/wiki/Key:turn , which should help explain why "where the carriageways split" is important.
- Andy -
Comment from Diacritic
Hello,
I haven't heard a response, and I can see you've been active.
I'm reverting the geometry as per the reasoned mentioned above.
Feel free to reach out if you wish to discuss.
Ways (1-20 of 32)
- 1
- 2
- 23909883, v25
- 24531440, v20
- Brunton Avenue (45366988), v13
- Punt Road (45367327), v24
- 45762059, v6
- Swan Street (136471110), v16
- 20 (198736990), v11
- Swan Street (211668281), v26
- Swan Street (215504906), v22
- 20 (294213712), v10
- Punt Road (405464566), v9
- Punt Road (569402015), v6
- 670652060, v3
- 677590628, v9
- 677590629, v4
- 677590630, v7
- 677590632, v6
- Olympic Boulevard (677590634), v5
- 677590637, v9
- Swan Street (784083853), v9
Relations (4)
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