[OSM-talk] [Tagging] - RFC - Motorway_link implies oneway=??

Lester Caine lester at lsces.co.uk
Thu Oct 2 11:45:00 BST 2008


Elena of Valhalla wrote:
> On Thu, Oct 2, 2008 at 11:22 AM, Nic Roets <nroets at gmail.com> wrote:
>> Isn't a motorway by definition divided and therefore oneway ?
>>
>> My opinion is that motorway and motorway_link must both default to
>> oneway=true, as the bi-directional varieties are non-existent / very rare.
> 
> I agree on the motorway, but around here it is very common to have
> motorway_links that are partially oneway, but then merge in an
> oneway=no before joining other roads
> 
> e.g.
> 
> |\
> | L         R
> M  \        |
> W   =--L2---+
> |  /        |
> | L         R
> |/
> 
> where MW is the motorway (one direction only), L are two oneway
> motorway links (entry and exit respectively), R is some kind of
> non-motorway road and L2 is a two-way part of motorway_link

I think all of those have now been split with barriers on UK links. Too many 
cases of idiots driving up the wrong 'L' link ;)
Seriously - if the motorway rules apply to the L2 section as well then it has 
to be flagged as a motorway_link :(

-- 
Lester Caine - G8HFL
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