[talk-au] Roundabouts and routing

[Ross Scanlon]

On Fri, 18 Dec 2009 21:13:44 +1100
Steve Bennett <stevagewp at gmail.com> wrote:

> On Fri, Dec 18, 2009 at 7:12 PM, Ross Scanlon <info at 4x4falcon.com> wrote:
> 
> > Likewise it's not necessary to have multiple nodes on a straight section of
> > road (unless it's really long).  As an example I just came across one
> > straight road that was 150m long. It had 6 nodes on it where it could have
> > been drawn with three. One at each end of the road and one where it
> > intersected with the second carriageway of the dual carriageway road it
> > joins.
> >
> 
> 
> I'm guilty of this sometimes. One reason for me comes from the method of
> tracing: zoom in, mark points along the longest straight stretch you can
> see, then pan the map, repeat, etc. If you're very zoomed in, you can't tell
> that the road will be straight off the screen.
> 
> And sometimes you just forget not to. Or you're not certain that the road
> really is straight, etc.
> 
> Steve

Better way to do it is zoomed out so you can see the whole section you want to trace.  Mark an end point then mark the other end.  Then zoom and accurately adjust the end points, once they are in the correct place then add extra points if necessary.

Also as John pointed out use the simplify tool before uploading.



-- 
Cheers
Ross