***physically***

 

Legal lane change restrictions are tagged with change:lanes

 

From: Graeme Fitzpatrick <[email protected]> 
Sent: Saturday, 5 March 2022 08:58
To: Luke Stewart <[email protected]>
Cc: OSM Australian Talk List <[email protected]>
Subject: Re: [talk-au] Fwd: Assistance with ongoing disagreement regarding 
intersections

 

Looking back at the notes from the previous discussion & spotted this comment: 

"only split the way at the point where you can no longer physically change 
lanes."

Physically, or legally?

 

Looking at the   <https://www.openstreetmap.org/way/779286918/history> Princes 
Hwy/William Rd example, yes, there's only a painted line & island that you can 
physically cross, but that would mean doing an illegal lane change.

 

Are we supposed to worry about that, or not?

 

Thanks

 

Graeme

 

 

On Fri, 4 Mar 2022 at 19:57, Luke Stewart <[email protected] 
<mailto:[email protected]> > wrote:

(forgot to x-post to talk-au)

Hi,

 

The standard rule and the way that I map is to only begin a new way if there is 
some form a physical separation, so extra turning ways which can be completed 
with a box but are modelled as curves aren't following this rule (same goes for 
ways that start when lanes start rather than branching off where the physical 
separation begins).

 

Whilst there are arguments like "it looks better" or "helps with 
routing/direction finding/navigation", these are not reasons to break osm, 
rather to improve software.

 

In the case of the  <https://www.openstreetmap.org/way/779286918/history> 
Princes Hwy/William Rd intersection, the residential road should be drawn 
straight through the intersection, with the right turn lane specified with keys 
such as turn:lanes and change:lanes.

 

As for how to resolve with this user, probably affirming a regional consensus 
would be most convincing.

 

Cheers,

Luke

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