Great answers so far.

Something else to be aware of is the non-use of cardinal directions in France. In the US and Canada, we're accustomed to using cardinal directions in highways, so things like "95 south" or "I-70 east," and particularly at highway junctions and mergers we're used to seeing the cardinal directions indicated on the signs. We also usually have a city too, so you'd see something like "15 NORTH Salt Lake City" and "15 SOUTH Las Vegas."

In France (and in Europe in general) cardinal directions aren't used in this way; only city names are used. So for example, the Google Street View screenshot below is for a car traveling westbound on the A-8 highway from Nice to Marseille or Aix-en-Provence, and this is the point where the A-57 highway splits off to Hyères and Toulon on the coast. If this were in the US or Canada you might expect to see "A8 WEST Marseille, Aix" and "A57 SOUTH Hyères, Toulon," but notice you just get the cities.

If you're using GPS or smartphone navigation software it will take this into account (it will not make up a cardinal direction indication when they aren't used) but it's just good to be aware of.