[OSM-talk] Divided roads proposal

[Steve Bennett]

On Mon, Dec 7, 2009 at 4:11 AM, Richard Bullock <rb357 at cantab.net> wrote:

> But to be completely honest, mapping out dual carriageways is really not
> *that* time consuming. In JOSM you could just copy the way you have drawn
> and drag the copied way a few metres to the side and reverse the direction.
>

If that's the case, it sort of shoots down the "dual carriageway contains
more information than a single way" argument, doesn't it?


> You'd then have to connect up side roads and tweak a few nodes - but should
> take no more than a couple of seconds if you can't be bothered drawing out
> the other carriageway. I'm sure Potlatch probably has a similar feature.
>

I'm not sure it does.

And in a world with a large but finite number of roads, where a relatively
> small fraction of roads are dual carriageway, and an ever increasing army
> of
> mappers - it's really not that bad.
>

Speaking for myself, what motivated my interest in this is that it is
tedious, and doesn't feel like the right thing to be doing. These minor
roads don't seem like they deserve too complete roads. Google Maps maps them
as single roads. Melway maps them as a single road which renders like a
double road (ie, variations in median width aren't accounted for). Yahoo —
now that I look — does exactly what I'm proposing, rendering a single road
with a dotted line down the middle to indicate the division.  Now, I don't
know what weight "what everyone else is doing" carries, but it indicates
something.

Steve
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