I have used Merkaartor to edit a 120km 4WD track in Western Australia that I had previously stored in two GPX files. Now I simply want to import this into OSM as a new Way, how do I do that? All I could find is to manually redraw the track using the Add Way button and this I am definitively not going to do.
There isn’t a way that I am aware of - I have tried.
JOSM does what you ask in a couple of clicks, but be careful, you could end up with a stupid number of nodes if it is a 1s log. You’ probably be better of tracing by hand and for that I reckon Merkaartor is the choice.
Also, before someone suggests it… The JOSM simplify way tool is rubbish if you want to preserve a decent amount of detail.
One more possibility is the youse of routeconverter. It is a Java app for webstart or start it like a java app from your desktop. English version is available too.