[OSM-talk] Divided roads proposal

[Richard Bullock]

> 3) Extra precision requires more time, which we don't necessarily have.
> Let's say that we agree that all divided roads "should" be mapped as two
> ways. Let's also say it takes on average 1 minute to trace out a single 
> way.
> There's a volunteer with 60 divided roads to map in front of him, and he's
> got one hour to spend. See where I'm going?
>
And you don't have to do all 60 dual carriageways in one sitting.

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. 
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.

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.