Waze has to carefully select the sources from which data is used as we can’t risk infringing other people’s rights. Therefore we have to limit ourselves to data that was explicitly stated to be open data or we need to have written permission to use a certain data source.

Flanders

Most of the maps at Geopunt.be are open data and as such available for us to use.

Wallonia

Trafiroutes.wallonie.be

Li├Ęge

www.policeliege.be/pdf/travaux.pdf
twitter.com/policedeliege