Route départementale française D68 (35)

Route départementale D68 (35)
Localisation
Pays	France
Département	Ille-et-Vilaine (35)
Caractéristiques actuelles
Itinéraire	Bécherel - Vezin-le-Coquet
Longueur	35,6 km

Présentation

• La route départementale D68 (35), ou RD68 (35), est une route départementale de l'Ille-et-Vilaine (35) qui relie Bécherel à Vezin-le-Coquet.
• Elle est prolongée dans les Côtes-d'Armor (22) par la D2.
• Depuis le 1^er janvier 2017, la partie de cette route qui se situe sur le territoire de Rennes Métropole a été reclassée en tant que route métropolitaine en conservant son ancienne dénomination, soit M68.

Curiosité

• Il a existé une incohérence concernant la numérotation des routes départementales autour de Bédée. En effet, originellement, la D68 s’arrêtait au Sud de Pleumeleuc sur la RN12 pour reprendre plus à l’Est sur cette même route. Depuis 1988 et l’ouverture du diffuseur de Pleumeleuc, la voie d’accès à la RN12 a été intégrée à la D68.
• C’est à partir de 1994 que la numérotation devient absurde : lorsque la déviation de la D72 au Sud de Bédée a été mise en service, cette dernière a été, de manière incohérente, intégrée à la D68 sans que la bretelle d’accès à la voie express n’ait changé de numéro. De plus, en 1996, la suppression des carrefours sur la RN12 a créé une discontinuité dans l’itinéraire originel de la D68.
• Finalement, c’est vers le début de l’année 2022 que la déviation Sud de Bédée a enfin pris le numéro D72, tandis que la voie communale parallèle qui assurait la continuité de la D68 a été attribuée à cette dernière, rayant l’incohérence qui régnait autour de cette numérotation et rétablissant la continuité de l’itinéraire originel. La bretelle d’accès à la voie express avait déjà perdu la mention D68 une dizaine d’années auparavant, et fait maintenant partie de la D612.

Historique

• Déviation Sud-Est de Bédée : 16 décembre 1994, diffuseur avec la RN12 dès 1988.
• Rectification et recalibrage entre Cintré et Le Rheu : 1^er décembre 1995.

Tracé

Chargement de la carte...

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class=\"mw-content-ltr mw-parser-output\" lang=\"fr\" dir=\"ltr\"\u003E\u003Cp\u003EB\u00e9cherel\n\u003C/p\u003E\u003C/div\u003E","title":"B\u00e9cherel\n","link":"","lat":48.31879894003676,"lon":-1.955390450392136,"icon":""},{"text":"\u003Cdiv class=\"mw-content-ltr mw-parser-output\" lang=\"fr\" dir=\"ltr\"\u003E\u003Cp\u003EB\u00e9d\u00e9e\n\u003C/p\u003E\u003C/div\u003E","title":"B\u00e9d\u00e9e\n","link":"","lat":48.17266347116556,"lon":-1.9434902627311712,"icon":""},{"text":"\u003Cdiv class=\"mw-content-ltr mw-parser-output\" lang=\"fr\" dir=\"ltr\"\u003E\u003Cp\u003EVezin-le-Coquet\n\u003C/p\u003E\u003C/div\u003E","title":"Vezin-le-Coquet\n","link":"","lat":48.12827835709789,"lon":-1.751025517451552,"icon":""}]}

Légende de la carte ou du tableau
En jaune	Tracé de la D68 (35).
En jaune clair	Tracé repris sur une ancienne voie communale en 2022.
En vert	Tracé de la déviation Sud de Bédée, attribuée à la D68 jusqu’en 2022.
En vert clair	Tracé attribué à la D68 jusqu’au début des années 2010.
En bleu ciel	Tracé de la M68 (35).
En violet	Troncs communs avec d'autres routes.
En gris	Tracé démoli ou fermé à la circulation.
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.

• Côtes-d'Armor (22) - D2
• Ille-et-Vilaine (35) - D68
  • D70
• Ille-et-Vilaine (35) / Rennes Métropole - M68
  • Bécherel D20 M20  Court tronc commun avec la M27.
  • Miniac-sous-Bécherel M220
  •  Court tronc commun avec la M221.
  • Romillé  Court tronc commun avec la M28.
• Ille-et-Vilaine (35) - D68
  • Pleumeleuc  Court tronc commun avec la D31.
  •  N12 D72 D612 (La D68 rejoignait la D72 au Sud de Bédée avant 2022.)
  • Breteil D125
  • La Tassinière
  • Gillard
  •  Tronc commun avec les D30 et M30.
• Ille-et-Vilaine (35) / Rennes Métropole - M68
  • Cintré  Court tronc commun avec les M34 et M35.
  • La Noë-Diolé
  • Le Rheu
  • Vezin-le-Coquet  Court tronc commun avec la M125.
  • VC