[OSM-talk] About large streets

[Andy Robinson]

This problem arises many times when there is more than one travel lane in
one direction. However in terms of mapping its actually a simple issue.
Ideally you would put a route down that takes the centre of the three lanes.
At some point in the future the line segments can then be tagged with a
direction tag and if we wish a width tag or number of lanes tag. These will
help client software to display the map features appropriately for a given
scale.

Someone will also add the tram lines at some point (two presumably) so the
end result might be 4 lines, 2 each for each separate and divided road
alignment and 2 more for the two tram lines (1 in each direction).

Andy

Andy Robinson
Andy_J_Robinson at blueyonder.co.uk 

>-----Original Message-----
>From: talk-bounces at openstreetmap.org [mailto:talk-
>bounces at openstreetmap.org] On Behalf Of Rev Simon Rumble
>Sent: 22 February 2006 16:29
>To: simon at zymurgy.org; talk at openstreetmap.org
>Subject: Re: [OSM-talk] About large streets
>
>
>On 22/2/2006, "Simon Hewison" <simon at zymurgy.org> wrote:
>
>>trees in the middle? Sounds like a dual carriageway to me because those
>>trees are probably stopping you turning across the other lane.
>>
>>Leave it as two parallel street segments. At some point, someone will
>>come up with a sensible way of defining one-way streets that everyone
>>can agree upon, and you can label those segments accordingly.
>
>This might work in this instance but what about other wide boulevards?
>Champs Elysee in Paris, for example?  As you can see from the Landsat,
>the line down the middle doesn't give any indication that this is a
>HUGE road.  And if you were to take GPS traces from both outside lanes,
>you would get two lines.
>
>http://www.openstreetmap.org/index.html?lat=48.86999800064848&lon=2.30694&z
>oom=14
>
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