Route départementale française D21 (77)

Route départementale D21 (77)
La D21 (77) à Pontcarré. © Google Maps
Localisation
Pays	France
Département	Seine-et-Marne (77)
Caractéristiques actuelles
Itinéraire	D51 - D603 (Pontault-Combault - Sammeron)
Longueur	48 km

Présentation

• La route départementale D21 (77), ou RD21(77), est une route départementale de Seine-et-Marne (77) qui relie Pontault-Combault à Sammeron.
• Elle se compose de deux sections : la première débute dès le centre ville de Pontault-Combault et s'interrompt à Tigeaux (D20) tandis que la seconde se débranche de la D934 à Crécy-la-Chapelle pour s'achever à Sammeron, au droit de la D603. C'est pourquoi elle comporte sur son parcours des troncs communs avec d'autres routes départementales avoisinantes.
• Elle longe l'A4 sur la majeure partie de son parcours.
• Notons que cet axe ne fait curieusement pas l'objet d'une signalisation spécifique sur le terrain dans la traversée de Pontault-Combault.
• Elle possède plusieurs annexes :
  • la D1021 dessert le centre-ville de Roissy-en-Brie,
  • la D21^E1 est une antenne entre la D10 et Villeneuve-Saint-Denis,
  • la D21^A dessert Sept-Sorts à partir de la D603.

Autour de la route

•  Pontault-Combault : Z.A. Croix-Saint-Claude
• La Marne
•  Forêts de Ferrières et de Crécy

Tracé

Chargement de la carte...

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Légende de la carte ou du tableau
En jaune	Tracé de la D21 (77).
En vert	Tracé des annexes.
En violet	Troncs communs avec d'autres routes départementales.
Pour plus d'informations sur les sources cartographiques, consulter cet article.
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• Seine-et-Marne (77) - D21
  • D51 Pontault-Combault
  •  N104   16 
  • D1021 → Vers Roissy-en-Brie -Centre
  • Roissy-en-Brie
  •   D35
  • Pontcarré
  •   D471
  •  D10
  • D21^E1 → Vers D10
  • Villeneuve-Saint-Denis
  • Villeneuve-le-Comte (contournement par l'Est)
  •  Court tronc commun avec la D231.
  •  Forêt domaniale de Crécy
  •   N36
  • Tigeaux D20
  •  Tronc commun avec la D20, D235, D33 et la D934.
  • Crécy-la-Chapelle D20 D934
  • La Chapelle-sur-Crécy
  •   D228
  • La Haute-Maison
  • Pierre-Levée
  •  Court tronc commun avec la D19.
  • Signy-Signets
  • Sammeron D603