[OSM-dev] "Separated" ways

[Joerg Ostertag (OSM Munich/Germany)]

On Sunday 15 July 2007 17:54, Dave Hansen wrote:
> The TIGER data has a concept of tiger:separated=yes/no.  It uses these
> for interstates (motorways) so that it doesn't have to keep track of a
> pair of parallel ways for each side of the motorway for long
> distances.
>
> Can we teach the renderer about these ways so that it renders two
> parallel roads at low zoom levels, but only has one set of ways?  Or,
> should we make an effort actually separate these into ways in the
> converter itself?

I think two ways would be better, since it would make it easier (in the long 
term) for routing software to see where you can do U-Turns and where not.

-
Joerg