Changes

That's where the A1 starts and the local drivers say that they often see hitchhikers, so apparently it does work:) It worked for us as well, though I think Charles de Gaulle might be a better(faster;) ) option. Anyway, to get there take the metro no12 to Porte de la Chapelle, and there walk to the roundabout. You can try getting a ride on the roundabout(there are traffic lights there so the cars have to stop) or you can stand on the oposite side, facing the roundabout, where the highway starts. Another good option is just hitching in the exact street where the metro is. There are 2 gas stations in that very street, just 50m deeper into the city. They aren't very crowded, but still many people going up to Belgium/north tank here.