[talk-au] Turn lanes review

David Wales daviewales at disroot.org
Tue Feb 12 06:28:38 UTC 2019

Hi Andrew,

Thanks for your feedback.
I've edited the changeset and uploaded it:


David Wales

On 9/2/19 5:02 pm, Andrew Harvey wrote:
> I'm not sure I follow your example, but...
> The rule of thumb is to only split the way when there is a physical
> barrier preventing moving from one lane to the other.
> As for Key:lanes, according to
> https://wiki.openstreetmap.org/wiki/Key:lanes it's only for marked
> lanes, but Microsoft has been adding many Key:lanes even when
> unmarked, though there's a bit of discussion about this
> https://wiki.openstreetmap.org/wiki/Talk:Key:lanes.
> On Fri, 8 Feb 2019 at 08:41, Graeme Fitzpatrick <graemefitz1 at gmail.com> wrote:
>> So what is considered "best practice" when it comes to lanes - physical or theoretical markings?
>> Situation: you have a two-lane, one-way, primary road with an exit coming up.
>> Your road is marked as highway=primary, one_way=yes, lanes=2
>> Should you map in an actual, physical lane splitting off to the left along the curve of the exit ramp, marked as =primary_link, lanes=1; or change the =primary to lanes=3, turn:lanes=slight_left|none|none?
>> I'll openly admit that I add extra physical lanes because I think it "looks" better that way & makes more sense to follow a "real" road on the map, rather than just be told "turn slightly left".
>> Thanks
>> Graeme

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