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

[Peter Pauly]

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?

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