[Tagging] Turn Lane Tagging?
colin.smale at xs4all.nl
Sat Jun 11 21:22:44 UTC 2016
I assume "transition" is meant, and not "transit".......
On 2016-06-11 23:11, Tijmen Stam wrote:
> On 11-06-16 04:16, James Mast wrote:
>> I've been using the "turn:lanes:*=none;slight_right" &
>> "slight_left;none" tags to indicate which side a new lane has been added
>> on a highway when going from 1 to 2 lanes (sometimes
>> "slight_left;slight_right" if the original lane is centered between the
>> two new lanes). How else are people to properly identify which side the
>> new lane is being added to?
> That's what the transit:-tag is for: <https://wiki.openstreetmap.org/wiki/Proposed_features/transit>
> All lanes and road attributes that I know of are neatly summed up - not on the OSM wiki but the JOSM wiki: <https://josm.openstreetmap.de/wiki/Styles/Lane_and_Road_Attributes>. From there links point to the OSM wiki.
> Take a look at this way (
>> https://www.openstreetmap.org/way/419799887 ) and take a look at the
>> Bing imagery and look at the 'turn:lanes:forward' tag, and you'll see
>> how this can, and would be valid.
> The way I see it, the only "turn:lane" markers that signify a lane change is merge_with_left/merge_with_right. All the others signify that you can choose between different ways!
> The way I think this should be tagged is:
> no turn:lanes
> (the continue is optional in this case).
> See for example Way 415775038
> Which has one lane, but the next segment has two lanes (one through lane and a right turn lane)
> (Note that this is not a good example: the Bing image isn't current and the lane will be changed next monday, so I'll probably update it tuesday evening)
> It's allowing the router to know that
>> a new lane is being added when combined with the next way (
>> https://www.openstreetmap.org/way/419799886 ) which has the
>> "lanes:forward=2" tag. It also allows the routers to properly tell
>> people to get in the left lane if just ahead, there's a left turn they
>> need to make.
> OSMand already does that with proper turn:lanes. It gives a preannouncement of which lanes you should go to:
> (The arrows are yellow before you are on the way, and green if you are on the way that has the turn:lanes)
> As far as I know, OSMand doesn't use transit:lanes.
> BTW, the "Lanes and road attribute" mappaint style doesn't use the transit:lanes for rendering, but it does a check on them, giving a warning if an incorrect transit:lanes is used.
> Tagging mailing list
> Tagging at openstreetmap.org
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