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Mapping turn lanes in SF peninsula, DC and LA #153
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The imagery at some places is not very clear and at-times the turn-lanes are covered by cars. In situations like these Name of the plugin: Mapillary Additionally, /cc @mapbox/team-data |
The new Turn lane mapping task of SF city is up for mapping. This task will include all the turn lanes from tertiary and above. If you face problems in loading the blocks please split it. cc @mapbox/team-data |
@mapbox/peru-office is jumping on this task!, Guys tengan en consideracion las intruciones.. :) |
The turn lane mapping tasks, DC task - 1 and Palo Alto task - 1 are completed and validated as well. The new DC turn lane mpping task is also up for mapping. cc @mapbox/team-data |
Statistics of Turn lane mapping done in SF PeninsulaDuration: Jan 20th to Feb 10th
cc @lxbarth and @mikelmaron |
^ Not completely sure whats going on here. Would this be |
this is right tagging ☝️ |
@planemad |
DC 3 inch imagery@abhisheksaikia DC GIS has an open data site with some additional resources, including 3 inch imagery from 2015, which was just posted four weeks ago. If we could somehow get this in JOSM, it'd be very useful. It is redacted around a few sensitive areas, e.g. The White House, but it is otherwise complete Redacted Areas |
Hey @Andygol cc. @mapbox/team-data |
@mapbox/team-data you guys crushed through this task, wow. Just looking through the data and some of the ones in the done areas still do not have turn lanes. What is the protocol to ignore? |
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@Andygol are the turn lane tags supposed to follow the paint on the road, or the intent of the paint? In other words, for routing purposes, would a The reason I ask is while reviewing some of this tagging in DC I've found an instance with a |
Statistics of Turn lane mapping done in DCDuration: 1 day
Observations:
Next actions:
cc @planemad @lxbarth and @mikelmaron |
@talllguy Regarding your query above^^, can you provide a link to the instance in OSM which will help in understanding the scenario better? Thanks. |
if we have to prepare to change lane for a left turn from an extra lane we use turn:lanes=slight_left| beforehand of it http://wiki.openstreetmap.org/wiki/Key:turn#Turning_indications |
New tasks for LA : http://tasks.openstreetmap.us/project/23 and Larger SF peninsula: http://tasks.openstreetmap.us/project/24 are up.
cc @mapbox/team-data |
Thanks for flagging this out @talllguy , we are trying our best to identify all the turn lanes visible in Bing/Mapbox imagery from tertiary roads and above. By mistake we might be missing some due to the poor imagery quality. If you find any of the missing turn lanes, please flag them here so that we can add them. |
@Andygol I should have included a screenshot. Here: So here I would say it should be The question is if this is about mapping for routing directly. |
@jothirnadh I think I understand. If there isn't an explicitly denoted lane restriction visible on the imagery, you'd not tag it. Right? |
Fixing the ^^^ above case, we split the road into 3 ways. Starting from the south we add the following tags:
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Summarizing discussion from #155
cc @mapbox/team-data |
As per discussion with @pratikyadav @mikelmaron and @maning we are updating our workflow to add dual carriageways in case of physical separations on roads. At present, we have decided to add dual carriageways only for roads which are not part of any relation. Dual-carriage way vs Fwd-Bkwd taggingAt some locations we are finding roads mapped by single carriageway while the imagery shows clear separation between roads. When to add dual carriageway?
This is added as a long term fix so that the present work of mapping cc @mapbox/team-data |
Here I've spotted difference in Bing and Mapbox imagery. Bing imagery was created |
I've updated alignment of highway ☝️ according Bing imagery + Mapillary |
Important According to #144 (comment) we only add cc @mapbox/team-data |
Capturing the estimated shipping dates for turn lanes mapping: ESTIMATED 🚢 DATES for turn lanes mapping task in LA for @mapbox/team-data :
Next actions for the team in turn lanes mapping:
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According to #144 (comment) we only add This issue is already been flagged and rectified but still finding it to be repeated by our @mapbox/team-data . Overpass query: http://overpass-turbo.eu/s/eTL @Rub21 can you follow this workflow and and use the above overpass query to clean this up in SF, DC and LA? It would be great if you can document your findings in this ticket. |
Statistics of Turn lane mapping done in LADuration: Feb 12th to March14th (still continuing) Team: @mapbox/team-data
Expected time of completion: 25th March |
While @mapbox/team-data working on the mapping of turn lanes in LA two new scenarios were identified. They were: Lanes with restricted access These are the areas on streets which are restricted for vehicular traffic. In the above cases the areas with markings on the roads are not considered as a lane Reverse direction turn lanes These are the lanes specifically categorised to take U-turn or reverse-turn. These were listed in Turn Lane mapping guide, QA part. Keep us posted with new scenarios so that we can add it to the mapping guide. |
Nice catch @maning, yes we are adding the roads at the actual junctions if they are missing. |
Found this scenario where a separate road is traced from the major road. This is not required until there is a physical barrier between the roads. This turn lane can be a part of the existing road itself. So this road will have the following tags |
As per voice with @maning and @planemad, we are scaling down the turn lanes mapping task after the ongoing LA task is completed. The priority area in LA is almost completely mapped and validated. We will not work on the next SF peninsula task on turn lanes for now. Next actions:
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While I was validating Bing Imagery Which satellite imagery should I work with? @mapbox/team-data |
@dannykath - I grew up in this area, it is changing a lot right now, but the Bing imagery is correct. Tiger also shows the correct location. |
thanks @aaronlidman 👍 |
Fixed it as per the bing imagery @dannykath https://www.openstreetmap.org/way/13320233/history#map=18/33.71805/-117.73640 |
The LA turn lanes has been completely mapped and validated by @mapbox/team-data. 💯 🚀 As discussed above, we are going to scale down our turn lanes mapping effort and stop working on it for now. IMMEDIATE NEXT ACTIONS:
We are working on cleaning up the previous turn lanes data in SF and DC using overpass turbo.
@jothirnadh and me to put up the stats by end of this week by working with @planemad: derive observations from the statistics and wrap up the LA turn lanes mapping effort. |
Statistics of Turn Lane mapping in LA:
Overall Statistics for Turn Lane mapping tasks:
Conclusion:Thus we can make the following conclusions based on our observations for the mapping tasks in SF, DC and, LA:
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Woot! superb work in pulling out the stats @oini. Great team effort @mapbox/team-data 💯 . 👆 hourly stats shows how our team increased the speed from 🙅 to 👍 🚀 Next actions
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Fascinating |
Diary has been posted and all the comms are up for validation 💯. Closing the task for now. |
Objective: Map missing turn lanes from tertiary and up in SF peninsula, DC and LA.
Team: @mapbox/team-data
Features to map: Turn lanes (motorway, trunk, primary, secondary and tertiary) from satellite imagery
Focus Area: SF peninsula and DC
Estimated features to map: unknown
Mapping speed: unknown
Available data sources
Tasks
JOSM Workflow
Setup
boundary: | leisure: | landuse: | waterway: | amenity: | natural: | building:
highway=motorway | motorway_link | trunk| trunk_link | primary | secondary | tertiary
Mapping
turn:lanes=left|through|right
. See OSM turn:lanesturn:lanes:backward=
andturn:lanes:forward=
to specify turn lanes in each direction.Lane attributes
styleIssues to keep in mind:
slight_left
andslight_right
can be ignored and insteadright
andleft
turn lane tags should be used to avoid ambiguity.Changeset Comment:
Add missing turn lanes from satellite imagery https://github.com/mapbox/mapping/issues/153
Source: Bing/Mapbox
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