From: Javier Sánchez Portero <javiers...@gmail.com> 
Sent: Wednesday, 23 May 2018 17:27
To: Tag discussion, strategy and related tools <tagging@openstreetmap.org>
Subject: Re: [Tagging] Sample tagging for highways with no lane markings

 

Anyway, for your example of the LR-333 road, most of the time it isn't enough 
wide for two cars to pass comfortably (see here 
https://goo.gl/maps/6PC2Wfkfw7A2 like the van has to put the wheel in the 
border line and probably stop). In this case, lanes=1, oneway=no is the best 
tagging. 

 

I agree that for this particular road lanes=1 is appropriate. Some people may 
tag it as lanes=1.5. But I find non-integer values for lanes quite problematic.

 

You could use lanes:both_ways=1 (in addition to lanes=1) to be explicit about 
it, but that is sort of implied. (In the absence of oneway=yes or an explicit 
lanes:forward or lanes:backward, if the lanes count is odd, it’s assumed the 
middle lane is both_ways while the remaining lanes are evenly split between 
forward and backward).

 

 

Would you tag the same in GC-210 road?: 
https://www.mapillary.com/map/im/v_G65XwwVnjf0u3i0RxRqA

What I suggest is that the tagging division=no is correct for examples like 
this.

 

 

This one looks like the prototypical:

 

lanes=2

divider=no

 

I don’t think anyone could argue this is a lanes:both_ways=1 (which would be 
implied by lanes=1 oneway=no, even if not explicitly tagged).

 

Cheers,

Thorsten

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