The RN154 is a trunk road (nationale) in France linking Val-de-Reuil (near Rouen) and Artenay (near Orléans). A substantial portion of the road has been designated part of the outer Paris ring-road (premier cas/first - inner - solution), leading to an increase in traffic volumes. Partly because of this, the road has been or is being upgraded to dual carriageway for much of its length.
Upgraded sections
Val-de-Reuil-La Madeleine-de-Nonancourt
La Madeleine-de-Nonancourt-Dreux, (Route nationale 12) under construction
Dreux bypass, under construction
Dreux-Chartres, under construction
Chartres bypass, projected
Chartres-Artenay, projected
Route
Val-de-Reuil to Dreux
Val-de-Reuil
Louviers
Pinterville
Évreux
Prey
Chavigny-Bailleul
La Madeleine-de-Nonancourt
Between La Madeleine-de-Nonancourt and Dreux, the road is called Route nationale 12