France is now covered with speed cameras (inc on Toll roads) but its easier to accidently break fhe speed limit on the non-toll roads.
True and not true. I’ve had tickets on all of them and the threshold is the same, 5kmh.
If you want to avoid the tolls, you can do: Calais -> Luxembourg (either via Lille or Brussels, former longer, latter busier) -> Nancy -> Epinal -> Switzerland -> Alps. Brim the fuel tank in Luxembourg (diesel is under a quid a litre currently). My trip to Morzine from Luxembourg is 20 mins longer going the non-toll route than the toll route but saves me 35e each way.
GPS apps that alert for speed cameras are illegal in France but PocketGPSWorld has a handy app for this. There are mobile cameras mind you which don’t always appear, however static ones have a sign up to 1km before the camera to get you aware. That said, UK drivers don’t get tickets from the cameras in France anyway.