I've been looking at OpenRailwayMap for GB, where I live. I thought at first
that it was missing numerous lines, but on investigating further I find that
this is because large numbers of ways have no usage tag, and it looks like
OpenRailwayMap only shows lines which are not tagged as 'main' or 'branch' when
you are zoomed right in. Having to edit each way separately would be a large
amount of work, especially as lines often consist of multiple ways. What's the
simplest way of (a) finding which ways don't currently have it, and (b) adding
the appropriate tag? Without it, I fear that OpenRailwayMap is of limited use.
