[OSM-newbies] streams with canalization

[Alan Mintz]

At 2010-04-20 03:35, Claudius wrote:
>Am 19.04.2010 22:24, Richard Weait:
> > On Mon, Apr 19, 2010 at 3:51 PM, Xan<dxpublica at telefonica.net>  wrote:
> >> Hi,
> >> I want to map a stream that in one point is canalized and "disappears"
> >> down to the street. How to map that?
> >
> > I've added tunnel=yes in this situation.
> >
> > 
> http://www.openstreetmap.org/?mlat=43.785041&mlon=-79.392741&zoom=18&layers=B000FTF
>
>plus layer=-1 if it crosses another way.

Or even if it does not yet cross another way and it is below ground on 
which something (like a road or building) could likely be built, it seems 
right to set layer=-1.

Same applies to bridges over unmapped areas that are clearly above ground 
level - set them to layer=1 even though there are currently no conflicts.

--
Alan Mintz <Alan_Mintz+OSM at Earthlink.net>