Le 31/07/2016 à 21:34, Daniel Hofmann a écrit :
> We are still open to contribution on analyser code or suggestion, on
somewhat poor documentation on the wiki, on translation or whatever else.
With the focus on guidance and lanes during the last weeks and months,
here are some cases I can think of.
We already have some checks on lanes
https://github.com/osm-fr/osmose-backend/blob/master/plugins/Highway_Lanes.py
http://osmose.openstreetmap.fr/en/map/#layer=Mapnik&zoom=12&lat=38.8967&lon=-77.0161
But it's a complicated subject.
(An issues too https://github.com/osm-fr/osmose-backend/issues/115 )
- Lanes for roundabouts are a mess (ref.
https://github.com/Project-OSRM/osrm-backend/pull/2693) - we looked
into this and came to the conclusion to not support lanes inside
roundabouts or do lane anticipation for lanes in roundabouts at this
point in time. Maybe we can come up with some automated checks here.
As you experienced with the subject, can you propose a check ?
- Multiple lane markers on the same lane as in left;left|right (ref.
https://github.com/Project-OSRM/osrm-backend/pull/2697) - you probably
have to check this in detail as in: are there situations and/or
countries where it makes sense to have multiple times _the same_ lane
marker on a single lane.
What means "left;left|right" ? And what can be wrong with this ?
- Advanced lane features depend on lane information right before the
turn (e.g. Lane Anticipation ref.
https://twitter.com/ericg/status/757887419530248192), maybe an
automated check could test if there is lane information on/after e.g.
motorway links but not directly before them as per the lane tagging
scheme.
Do you talk about the transit:lanes proposed feature ?
- Lane access tag values not matching turn lane tag values.
We do not already make inter lanes tag check yet, but make sense.
- Impossible or strange lane configurations such as the left most lane
turning to the right crossing straight/none lanes (in right-sided
driving countries).
This one, at least, look easy.
- Roundabout mis-tagging (ref.
https://github.com/Project-OSRM/osrm-backend/issues/2716): max. radius
/ outlier nodes in roundabout way.
You suggest to detect gap between a node and the local shape of the
roundabout ?
After micro-mapping, this is micro-fixing !
Frédéric.
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