[OSM-talk] Divided roads proposal

[Peter Childs]

2009/12/4 Martin Koppenhoefer <dieterdreist at gmail.com>:
> 2009/12/4 Morten Kjeldgaard <mok at bioxray.dk>
>>
>> There's nothing you can do with drawing that can't be done with
>> tagging, and there's in principle nothing being done with tagging that
>> can't be rendered beautifully on the final map. It only depends on the
>> richness of the tagging language and the sophistication of the
>> renderers.
>
> I just agree partly

Me Too, however

There are two types of Dual Carrage-way.which I think is the problem here.

Type One.

Large Motor Way Type Roads (but also large Primary roads), with Slip
Roads, and the two separate carriageways are never joined, or maybe by
a roundabout from time to time or other major junction. Here its best
to map each carriage way separately as they are separate roads.

Type Two

Smaller roads where the Dual Carriage way exists but is split at
regular intervals by gaps to turn right (Sorry I'm in the Uk (Left in
most countries)), Often created due to the lay of the land, Bridges,
Tunnels, Crossing Islands, Safety Island, etc. May exist for a few
meters upto a major junction to help traffic flow etc

I think we actually need both, and use the right one for the logic of
the road/junction.

Peter.