[OSM-newbies] Divided highway - track both sides?

[Bernd Raichle]

On Monday, 19 November 2007 09:48:19 -0500,
Peter Pauly <ppauly at gmail.com> writes:
 > I noticed an important interstate highway in my area was not mapped so
 > I took my GPS along on a trip and created two tracks - one for the
 > trip north and another for the trip south on the same interstate.
 > Because it's an interstate, there is quite a bit of distance between
 > the two tracks and they are clearly visible as two lines on the map.
 > Should I treat them as two tracks when uploading and set each to be
 > one-way or should I just pick one of the tracks and treat that as the
 > whole highway?

I map a highway as two ways marked as one-way if
 - there is a physical divider between the opposite lanes  or
 - there is a legal divider and the distance between the opposite
   lanes is significant.

Don't forget to create parallel lines if the lanes in real life are
(almost) parallel, i.e., if you set a node for one line, make a node
for the parallel line.


 > The other interstates that are mapped in this area look like they are
 > a single line.

If you know that they should be mapped as two lines, adjust the
mapping ... :-)


Best wishes,
  -bernd