Let users contribute GPS traces to Open Street Map
I just don't see why waze hasn't fully embraced www.openstreetmap.org I've been asking since day one for a way to contribute my GPS traces to both waze and Open Street Map but my suggestion has been ignored so far. I think waze, Open Street Map and the community would all win if this collaboration happened. See http://waze.uservoice.com/forums/59225/suggestions/982979 for the cartouche suggestion.

as cougar mentioned, this is already possible under the archive of the edit map (cartouche). If you are not sure how to do this, please write to us – alpha@waze.com – and we will explain more
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Cougar commented
In Carouche open "View Panel" and "Achive". All your tracks are there and you can download them to sumbit to OSM. A little bit uncomfortable but works. About Waze and OSM relations you can read from FAQ http://www.waze.com/faq/#18