 Premise is: There are actually three winding roads, or the Grande, the high road, starting out from the Avenue des Diables-Bleus in Nice; the Moyenne, the middle one, beginning at Place Max-Barel; and the Basse, along the coast from Boulevard Carnot, but usually jammed with traffic.
Hypothesis is: The Moyenne is a modern four-lane highway that runs straight from Nice to Paris.