[Talk-us] Remapping tips

[Alan Mintz]

At 2012-02-06 16:19, Paul Johnson wrote:
>On Mon, 2012-02-06 at 17:14 -0600, Martijn van Exel wrote:
> > On Mon, Feb 6, 2012 at 5:06 PM, Nick Hocking <nick.hocking at gmail.com> 
> wrote:
> > >
> > > [..]and copy in the TIGER 2011 name from the TMS overlay (remembering 
> to un-abreviate as you go).
> >
> > As a reminder: the JOSM URL for that is
> > 
> http://{switch:a,b,c}.tile.openstreetmap.us/tiger2011_roads/{zoom}/{x}/{y}.png
> >
> > > Some roads are (unfortunately) glued to landuse polygons. For these
> > > you need to unglue first to make room for the road replacement. These
> > > take a lot more time but, hopefully, there are not too many of these.
> >
> > That's really bad practice IMO, but I find it practised here in Salt
> > Lake too. Quick way to unglue: Select the way, shift-select the glued
> > point(s), press g.
>
>Ideally, these should be shifted to the border of the land use, rather
>than another location within the right of way.

Exactly. As a technical matter, in almost all cases of a public roads in 
the US, if you look at the tract map, you will see a permanent dedication 
of an easement/right-of-way for the road, and that land cannot be built on. 
For the most part, these ROWs are even wider than the road itself has been 
built on. The residential and commercial landuse ways should definitely 
extend no further than the sidewalk in this vast majority of the scenarios.

Even if it were possible for someone to build in the middle of a street, 
unless they actually have done so, it shouldn't be mapped that way, since 
we aim to map what we see now, not duplicate a zoning map of what could be.

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