Route départementale française D121 (78)

Route départementale D121 (78)
Panneaux Michelin actualisés sur la D121 (78) au Pecq. © Philippe de Priester
Localisation
Pays	France
Département	Yvelines (78)
Caractéristiques actuelles
Itinéraire	Croissy-sur-Seine – Sartrouville (D321 – D121 (95))
Longueur	11,5 km

Présentation

• La route départementale française D121 (78), ou RD121 (78), est une route départementale située dans le département des Yvelines (78) qui relie Croissy-sur-Seine à Sartrouville, soit de la D321 à la D121 (95) dans le Val-d'Oise (95). Cette dernière route du même numéro est prolongée dans ce département et donne accès à Cormeilles-en-Parisis.

Historique

• Déviation de Sartrouville : voir D1021 (78).

Autour de la route

• La Seine
• Le Pecq

Tracé

Chargement de la carte...

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Légende de la carte ou du tableau
En jaune	Tracé de la D121 (78).
Pour plus d'informations sur les sources cartographiques, consulter cet article.
La carte ne s'affiche pas ? Merci d'éditer l'article et de le sauvegarder sans aucune modification.

• Yvelines (78) - D121
  • D321 Croissy-sur-Seine
  • Le Vésinet
  • Le Pecq Église Saint-Wandrille D186 D311
  • Montesson
  • D1021
  • Sartrouville Église Saint-Martin XI^e, Château D308
• Val-d'Oise (95) - D121

Trafic

• Le Vésinet : 8221 véhicules/jour (2006).
• Le Pecq : 15 183 véhicules/jour (2006).
• Montesson : 13 757 véhicules/jour (2009).
• Sartrouville : 14 254 véhicules/jour (2008) dont 3,3 % de P.L.
• À la frontière avec le Val-d'Oise (95) : 10 820 véhicules/jour (2009).

Lien externe

• Voie nouvelle à Sartrouville et Montesson sur le site du Conseil départemental des Yvelines