Route départementale française D40 (30)

Route départementale D40 (30)
Duo de Panneaux Michelin dans le centre de Calvisson. © G.E.
Localisation
Pays	France
Département	Gard (30)
Caractéristiques actuelles
Itinéraire	Nîmes - Sommières
Longueur	24 km

Présentation

• La route départementale D40 (30), ou RD40 (30), est une route départementale du Gard (30) qui relie Nîmes à Sommières.
• Cet axe revêt une grande importance en raison de l'urbanisation très forte de la Vaunage. Il existait auparavant une voie ferrée parallèle à cette route mais, réservée au fret depuis la seconde guerre mondiale, elle a été déclassée à la fin des années 1980 et (partiellement) transformée à grands frais en voie verte.
• Au départ de Nîmes, il était prévu une voie express, mais aucun des échangeurs n'a finalement vu le jour. Les carrefours principaux ont été transformés en carrefours giratoires qui nuisent à la fluidité de l'itinéraire. Bien que la plupart des villages soit déviée, l'itinéraire présente une grande dangerosité liée notamment à l'absence de créneaux de dépassement sécurisés et plus généralement à un sous-dimensionnement.
• Le point noir reste la traversée de Caveirac. Il était prévu une déviation mais les terrains qui entouraient son tracé ont été progressivement urbanisés. Devant l'opposition des nouveaux habitants, le Conseil Départemental a proposé une tranchée couverte irréaliste et très coûteuse sous Caveirac, avant d'abandonner le projet sans offrir de solution viable. Chaque jour ouvrable, des milliers de véhicules se trouvent ainsi bloqués aux portes de Nîmes, faute de pouvoir franchir ce village rapidement. Il en résulte une saturation croissante de la RN113 toute proche qui devient un itinéraire de substitution alors qu'elle est encore moins bien équipée pour recevoir un trafic soutenu.
• La D40 comporte de nombreuses annexes :
  • La D40^A traverse Saint-Dionisy
  • La D40^B relie depuis la D40 le centre-village de Villevieille
  • La D40^C relie Saint-Dionisy à la D40
  • La D40^D dessert Calvisson

Historique

Généralités

• À sa création, en 1813, la route départementale n° 10, ou RD10 (30), est décrite comme étant la route de Nîmes à Sommières. Elle s'embranche avec la route royale n° 87, à 3 000 m après Nîmes, passant par Nages, Congéniès, Aujargues et Villevieille, et venant aboutir à Sommières même.
• Les ordonnances des 27 novembre 1850 et 17 mars 1858 confirment la RD10 (30) étant la route de Nîmes à Sommières, par Calvisson.
• En 1891, elle devient le chemin vicinal de grande communication n° 40, ou Gc40 (30). Suite à la réforme de 1938, elle est classée en tant que chemin départemental n° 40 (30).

Aménagements

• Rectification générale entre Nîmes et Calvisson : 1858.
• Déviation de Calvisson : 1976.
• Déviation de Congénies : 1985.
• Déviation d'Aujargues : 1993.

Autour de la route

• Nîmes
• La Vaunage
• Sommières

Tracé

Chargement de la carte...

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Légende de la carte ou du tableau
En rouge clair	Tracé repris sur la RN2110.
En jaune	Tracé de la route.
En jaune clair	Anciens tracés avant rectifications du XXe siècle.
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.

• Gard (30) - D40
  • N113 D13 D42 Nîmes
  • Saint-Césaire D640
  • Caveirac
  • Langlade
  • Saint-Dionizy
  • Calvisson
  • Congénies
  • Aujargues
  • Villevieille D22
  • Sommières D35 D6110 VC