Route nationale française 531

Route nationale 531
Borne de la RN531 encore en place à Sassenage.© G.E.
Localisation
Pays	France
Région	Auvergne-Rhône-Alpes
Caractéristiques de 1933 à 1973
Itinéraire	Bourg-de-Péage - Villard-de-Lans - Grenoble
Longueur	82,4 km

Présentation

• La route nationale 531, ou RN531, est une ancienne route nationale française qui reliait Bourg-de-Péage à Grenoble, via le Massif du Vercors.

Historique

Généralités

• A sa création, en 1933, elle est définie comme la route de Valence-sur-Rhône à Grenoble par Villard-de-Lans.
• Dans la Drôme, elle est issue de la route départementale n° 7, ou RD7 (26). En Isère, elle est issue d'un premier tronçon du chemin de grande communication n° 61, ou Gc61 (38), pour la section comprise entre la limite de la Drôme et Clairivaux, commune de Saint-Just-de-Claix, du chemin de grande communication n° 58, ou Gc58 (38), pour la section comprise entre Clairivaux et la RN518 à l'entrée de Pont-en-Royans, du chemin de grande communication n° 2, ou Gc2 (38), pour la section comprise entre Pont-en-Royans et Villard-de-Lans, du chemin de grande communication n° 6, ou Gc6 (38), pour la section comprise entre Villard-de-Lans et Sassenage, et d'un second tronçon du chemin de grande communication n° 61, ou Gc61 (38), pour la section comprise entre Sassenage et Grenoble.
• Le trajet de Valence à Bourg-de-Péage se faisait alors via la N92.
• Suite à la réforme de 1972, les tronçons de Bourg-de-Péage à Saint-Just-de-Claix et de Sassenage à Fontaine ont été renumérotés en RN532 et le reste de l'itinéraire a été déclassé en D531.
• Il est à noter que la boucle urbaine Fontaine - Grenoble - Fontaine numérotée D531 sur le terrain et longue de 8,3 km n'a jamais fait partie du réseau routier national. Elle emprunte le pont Esclangon mis en service en décembre 1985.
• Axe majeur du Vercors, la D531 a fait l'objet de nombreux travaux visant à assurer sa pérennité et une certaine capacité à écouler un trafic saisonnier important.
• La portion située sur le territoire de Grenoble-Alpes Métropole est exploitée par cette dernière depuis le 1^er janvier 2017.

Aménagements

• Tunnel d'Arbois, sur la commune de Chorange : 2 août 2000.
• Élargissement entre Villard-de-Lans et Sassenage : 1967.
• Déviation de Sassenage : 1967.
• Pont sur le Drac, dans la continuité des grands boulevards de Grenoble : 10 août 1956.
• Suppression du passage à niveau de L'Estacade à Grenoble : 15 octobre 1964.

Autour de la route

• Grenoble.
• Massif du Vercors.
• Gorges de la Bourne.

Tracé historique

Chargement de la carte...

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l'A49\n","link":"","strokeColor":"#F8B708","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":45.050471,"lon":5.174868},{"lat":45.049982,"lon":5.172937},{"lat":45.049407,"lon":5.16585}]},{"text":"","title":"","link":"","strokeColor":"#F30A2B","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":45.063545,"lon":5.265975},{"lat":45.063207,"lon":5.265046},{"lat":45.062662,"lon":5.264298},{"lat":45.062476,"lon":5.263727},{"lat":45.062086,"lon":5.259178},{"lat":45.061817,"lon":5.258153},{"lat":45.061654,"lon":5.256608},{"lat":45.061396,"lon":5.25564},{"lat":45.061306,"lon":5.254941},{"lat":45.061506,"lon":5.25322},{"lat":45.061692,"lon":5.252351},{"lat":45.061965,"lon":5.249958},{"lat":45.061885,"lon":5.248298},{"lat":45.06172,"lon":5.247485},{"lat":45.060161,"lon":5.246868},{"lat":45.059924,"lon":5.246512},{"lat":45.059788,"lon":5.245441},{"lat":45.059813,"lon":5.244001},{"lat":45.060169,"lon":5.243293},{"lat":45.060466,"lon":5.242925},{"lat":45.060832,"lon":5.242711},{"lat":45.061599,"lon":5.242668},{"lat":45.063092,"lon":5.242392},{"lat":45.0655,"lon":5.240879},{"lat":45.0656,"lon":5.240541},{"lat":45.065672,"lon":5.237979},{"lat":45.065508,"lon":5.237073},{"lat":45.065572,"lon":5.236461},{"lat":45.065981,"lon":5.235823},{"lat":45.06611,"lon":5.235303},{"lat":45.066163,"lon":5.23063},{"lat":45.065996,"lon":5.229214},{"lat":45.050471,"lon":5.174869},{"lat":45.050114,"lon":5.174027},{"lat":45.048826,"lon":5.171924},{"lat":45.048583,"lon":5.170958},{"lat":45.048598,"lon":5.169864},{"lat":45.049326,"lon":5.16716},{"lat":45.049406,"lon":5.165851},{"lat":45.048973,"lon":5.160042},{"lat":45.049208,"lon":5.157172},{"lat":45.049174,"lon":5.155868},{"lat":45.049557,"lon":5.153454},{"lat":45.050213,"lon":5.152204},{"lat":45.050353,"lon":5.151619},{"lat":45.050326,"lon":5.145311},{"lat":45.050224,"lon":5.145016},{"lat":45.049671,"lon":5.14427},{"lat":45.049493,"lon":5.1436},{"lat":45.049663,"lon":5.142371},{"lat":45.049601,"lon":5.141872},{"lat":45.049394,"lon":5.141406},{"lat":45.045741,"lon":5.136768},{"lat":45.039456,"lon":5.129848},{"lat":45.038005,"lon":5.127488},{"lat":45.036894,"lon":5.12494},{"lat":45.034987,"lon":5.118873},{"lat":45.033873,"lon":5.111658},{"lat":45.033846,"lon":5.111003},{"lat":45.036604,"lon":5.072124},{"lat":45.036807,"lon":5.071202},{"lat":45.039113,"lon":5.06525},{"lat":45.039282,"lon":5.06463},{"lat":45.039596,"lon":5.062753},{"lat":45.040128,"lon":5.057218},{"lat":45.040149,"lon":5.055754},{"lat":45.04028,"lon":5.055274},{"lat":45.040363,"lon":5.055148},{"lat":45.04044,"lon":5.05518},{"lat":45.040476,"lon":5.055325},{"lat":45.04041,"lon":5.056197}]}],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"visitedicon":"","wmsoverlay":false,"zoom":9,"layers":[],"controls":["pan","zoom","streetview","type","scale"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"resizable":false,"kmlrezoom":false,"poi":true,"cluster":false,"clustergridsize":60,"clustermaxzoom":20,"clusterzoomonclick":true,"clusteraveragecenter":true,"clusterminsize":2,"imageoverlays":[],"kml":[],"gkml":[],"searchmarkers":"","fullscreen":false,"scrollwheelzoom":false,"locations":[{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EGrenoble\n\u003C/p\u003E\u003C/div\u003E","title":"Grenoble\n","link":"","lat":45.18803114983182,"lon":5.719081163406372,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EFontaine\n\u003C/p\u003E\u003C/div\u003E","title":"Fontaine\n","link":"","lat":45.196227,"lon":5.673484,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ESassenage\n\u003C/p\u003E\u003C/div\u003E","title":"Sassenage\n","link":"","lat":45.212991,"lon":5.661566,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003ESaint-Just-de-Claix\n\u003C/p\u003E\u003C/div\u003E","title":"Saint-Just-de-Claix\n","link":"","lat":45.063545,"lon":5.265975,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EBourg-de-P\u00e9age (jusqu'en 1973)\n\u003C/p\u003E\u003C/div\u003E","title":"Bourg-de-P\u00e9age (jusqu'en 1973)\n","link":"","lat":45.04083,"lon":5.048542,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EBourg-de-P\u00e9age\n\u003C/p\u003E\u003C/div\u003E","title":"Bourg-de-P\u00e9age\n","link":"","lat":45.04041,"lon":5.056197,"icon":""}]}

Légende de la carte ou du tableau
En rouge	Tracé cédé à la RN532 en 1978 (déclassé en 2006).
En orange	Ancien tracé à Sassenage déclassé en 1971 et tracé déclassé localement après rectification.
En jaune	Tracé déclassé en 1973.
En vert	Boucle Fontaine - Grenoble - Fontaine
En violet	Tronc commun avec la RN518 à Pont-en-Royans.
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.

De Bourg-de-Péage à Grenoble (de 1933 à 1973)

• Drôme (26) - D2532^N
  • Bourg-de-Péage
    • D2532^N (ex-N92) Bourg Centre Musée de la Pogne (vers D92^N D102 D149 D196 D538 D2092^N)
    • La Parisière
  • Chatuzange-le-Goubet
    • La Roseraie
    • Pizançon
    • Les Chirouses   D532
• Drôme (26) - D532
  • Chatuzange-le-Goubet
    • Les Grenières
    • Canard
    • Le Martinet
  • Beauregard-Barret Les Murettes
  • Jallans
    • L'Écancière
    •  
  • Eymeux Les Fauries
  • La Baume-d'Hostin Les Massotiers D125
  • Saint-Nazaire-en-Royans La Bourne Aqueduc, Église Romane, Tour Médiévale XI-XII^e D76

Panneau sur la D531 à Saint-Just-de-Claix. © G.E.

• Isère (38) - D1532
  • Saint Just-de-Claix
    • Quatre Têtes Site Archéologique
    • Clairivaux
    • Espace Royans  

• Isère (38) - D531
  •  Parc naturel régional du Vercors

    

    Village de Pont-en-Royans, traversé par la RD531 (anciennement RN531). © Mickadu26

  • Auberives-en-Royans
    • Auberives Village
    • Le Mas
  • Pont-en-Royans Bourg Médiéval, Musée de l'Eau
    • Priolées D518
    •  Court tronc commun avec la D518.
    • Pont Picard La Bourne D518
    • Les Prairies
    • Pont Rouillard La Bourne
  • Choranche
    • Métrière
    • Pré Martin
    • Les Pierrones
    • Les Chartreux
    • Ruisseau de Jallifier
    • Choranche
  • Gorges de la Bourne  
  • Rencurel
    • La Balme de Rencurel
    • Le Moulin
    • Basse Valette
    • Pont de la Goule Noire D103

      

      Panneaux Michelin sur le Pont de la Goule Noire. © Détail d'une Carte Postale Ancienne.

    • Grotte de la Goule Verte
    • Grotte de la Goule Blanche
  • Villard-de-Lans
    • Les Jarrands Le Meaudret D106
    • Charpichon
    • Villard-de-Lans Centre Nombreux Monuments
    • Font Noire
    • Les Geymonds  
    • Pont des Âniers Le Plénouse
  • Lans-en-Vercors Église et Prieuré
    • La Côte
    • La Gardette
    • Le Truc (déviée)
    • Les Eymards (déviée)
    • Jaume   D106
    • Verduret Musée de la Magie des Automates
    • L'Olette
  • Gorges d'Engins
  • Engins Les Jaux
  • Gorges du Furon
  •   Lacets
• Isère (38) / Grenoble-Alpes Métropole - D531
  • Sassenage Églises, Châteaux Cuves de Sassenage
    • Les Grandes Côtes   Lacets
    • Hameau du Château  
    •   D1532

• Isère (38) / Grenoble-Alpes Métropole - D1532
  • Sassenage
    • Sassenage Village
    • La Saulée
  • Fontaine
  • Seyssinet-Pariset
    • Pacallaire
    • Les Îles de Seyssinet D106
  • Grenoble Nombreux Monuments  A480 E711 E713   3  N481 D5 D15 D106 D512 D531 D590 D1075 D1087 D1090

Boucle Fontaine - Grenoble - Fontaine (non classée)

• Isère (38) / Grenoble-Alpes Métropole - D531
  • D106 D1532 Fontaine
  • Sassenage
  • Le Drac
  • Grenoble Nombreux Monuments E711 E712 E713  A480   1.1    2  D15 D106 D531^C
  • Le Drac
  • Fontaine D106 D1532