[OSM-talk] How do we tag passing/slow lanes?

[Blake Crosby]

To further illustrate what Simon is talking about, check out this page:

http://www.mto.gov.on.ca/english/dandv/driver/handbook/section2.7.4.shtml

Also known as climbing lanes.

Blake


simon at mungewell.org wrote:
> Hi,
> I'm a new comer working in/on Southern Alberta. Just getting to grips with
> the range of tags available, and have a question about passing/slow lanes.
> 
> By passing lane, I mean a section of non-segregated road which has an
> additional lane in one direction. This is often on an up-hill section
> where larger traffic would slow, however this is not always the case. Here
> they have built a series of passing lanes on Highway 3 (Crowsnest Pass to
> Lethbridge) instead of building segregated lanes.
> 
> The same situation can occur where you have turn left/right turn lanes at
> junctions, which is very common here.
> 
> 
> The only suggestion I had was to set lanes to '1+2', which would mean 1
> lane in the forward direction (of the way) and 2 in the reverse direction.
> 
> If by convention the user was to use the 'normal' width as the first
> parameter then renderers which did not support this extra feature would be
> able to easy parse out the data. This obviously means sections of road
> might have the opposite way direction, but I don't think that matters.
> 
> It would also require some fine tuning of which lane merged back into the
> normal flow, ie. did the 1st or 2nd lane have to merge?
> 
> Comments?
> 
> Cheers,
> Mungewell.
> 
> 
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