Route nationale 87
La RN87 à Echirolles.© France Autoroutes
Régions
Auvergne-Rhône-Alpes, Occitanie
Itinéraire
Remoulins - Nîmes - Lunel - Montpellier - Pézenas
Itinéraire
Remoulins - Nîmes
Présentation La route nationale 87 , ou RN87 , est une route nationale française qui contourne intégralement depuis 1982 la ville de Grenoble par le Sud entre l'A41 et l'A480 sous forme d'une voie rapide . Elle est localement connue sous le nom de Rocade Sud .
La RN87 présente une situation de saturation très avancée qui se traduit par de multiples blocages quotidiens. Cette situation s'explique par une configuration minimaliste, un grand nombre d'échangeurs (donnant de surcroît sur des feux ou des giratoires eux-mêmes saturés) et l'absence d'alternatives faute d'une Rocade Nord un temps évoquée mais désormais abandonnée.
Historique Généralités A sa création, en 1824 , la RN87 est décrite comme étant la route de Lyon à Béziers. Elle s'embranche à Lafoux, près du Pont du Gard, sur la route précédente, et joint tout près de Pézenas la route n° 9, de Paris à Perpignan . Elle succède alors à la route impériale 105 .
Jusqu'en 1949 , la RN87 reliait Remoulins à Pézenas via Nîmes, Lunel, Montpellier et Mèze. A cette date, la création d'une grande RN113 RN87 de la majorité de son parcours et elle se voit réduite au tronçon Nîmes - Remoulins. Elle devient la route de Lyon à Nîmes .
En 1950 , elle est supprimée de la nomenclature des routes nationales par prolongement de la RN86 Le numéro RN87 resté vacant est réattribué en 1978 à la rocade sud de Grenoble . Elle est alors définie comme étant la route de Rondeau, N. 75, à Grenoble, N. 90 .
Cette rocade ayant été construite à un rythme très lent avec de multiples phasages, il a été nécessaire de reprendre une section de l'ancienne RN523 RN2087 2006 en D1087 .
Construction Section Nîmes - Limite Gard/Hérault : 1835 (réparations).
Section Limite Gard/Hérault - Pont du Ministre : 1839 (réparations).
Ponts du Ministre et de Lunel-Vieil : 1837 (reconstruction).
Alentours de Valergues : 1839.
Rectification de Saint-Brès : 1846.
Section Saint-Brès - Saint-Antoine : 1841 (réparations).
Section Saint-Antoine - Salaison : 1847.
Section Salaison - Saint-Jean-de-Védas : 1838 (réparations), sauf Rampe de l'Esplanade à Montpellier, adoucie en 1841.
Pont sur la Mosson : 1841.
Section Fabrègues - Launac : 1841 (réparations).
Section Launac - Gigean : 1839 (réparations).
Section Saint-Félix - Mèze : 1841 (réparations).
Section Mèze - Montagnac : 1839 (réparations).
Futur Réaménagement de l'échangeur du Rondeau au croisement avec l'autoroute A480 . En lien avec l'élargissement de cette autoroute à 2x3 voies, le projet prévoit une augmentation de capacité et une reprise de certains bretelles permettant un décroisement de certains flux.
A long terme, la Rocade Sud en elle-même pourrait être portée à 2x3 voies dans chaque sens. A défaut, des voies d'entrecroisement pourraient redonner de la capacité dans un secteur très urbanisé. Cependant, la conception défectueuse de la rocade ne permet pas un élargissement facile faute d'emprises prévues suffisamment larges.
Description Image exceptionnelle de l'échangeur du Rondeau au Sud de Grenoble avec un trafic fluide durant le confinement en mai 2020. © G.E.
La rocade sud Elle s'embranche de l'A41 par un échangeur en trompette, au niveau de Meylan. Evoluant encore dans un cadre rural, elle pique droit au sud, franchit l'Isère, puis passe entre la zone industrielle de Mayencin/Champ-Roman et Gières tout en donnant accès au domaine universitaire. La voie ferrée Grenoble-Montmélian et la ligne B du tramway qui lui est parallèle, sont franchies par un pont inférieur.
Elle oblique ensuite vers le sud-ouest en restant près des premiers reliefs du massif de Belledonne. On voit le Vercors en face, en particulier le Moucherotte, tandis que la Chartreuse apparait à droite. Les quartiers traversés à Saint-Martin-d'Hères sont des zones périphériques constituées d'immeubles, de zones industriels et d'établissements scolaires, et les protections acoustiques sont nombreuses. La rocade longe sur la droite la voie ferrée Grenoble-Montmélian, sous caténaires, dont le tracé avait été dévié en 1968 pour éviter les passages à niveau du centre-ville.
Après Eybens, la sortie 6 donne accès à l'Alpexpo, la patinoire, la salle de spectacles le Summum et au centre commercial Grand'Place . A Echirolles, on passe sous la ligne A du tramway. Puis l'on passe sous la voie ferrée Grenoble-Veynes et la RD1075 avant d'arriver à l'échangeur de l'A480 .
La rocade se prolonge par la RD6 , à simple chaussée et mise en service en 1983, qui donne accès à Seyssins après avoir franchi le Drac.
Tracés historiques Chargement de la carte...
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Légende de la carte
En rouge Tracé actuel.
En orange Tracé provisoire le temps du bouclage de la rocade au Nord.
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.
Remoulins - Pézenas (avant 1950) Chargement de la carte...
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Légende de la carte
En rouge Tracé de 1824 à 1950.
En orange Tracé déclassé localement après déviation.
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.
Plaque de cocher à Fabrègues. © Lloyd cf
Hérault (34) D613 D609 A75 Montagnac e D5 D32 Montmèze
Mèze e , Église Saint-Martin-de-Caux XIIe D51 Bouzigues
D600 D132 Issanka
Gigean D2 Launac-Saint-André
Fabrègues D185 Saint-Jean-de-Védas D132 D132E2 Montpellier N109 D5 D17 D21 D65 D66 D612 D986 Castelnau-le-Lez Le Crès Les Mazes
Salaison Vendargues D65 D610 Hérault (34) N113 A709 Baillargues
Saint-Brès
Valergues
Lunel-Vieil e , Château, Orangerie, Tour de Farges Lunel D24 D34 D61 Gard (30) N113 Gard (30) D6086 Voie express Historique 20 12 1967 : Section Glairons - Technisud (sorties 2 à 8), (première chaussée avec carrefours à niveau)
05 02 1982 : Section Technisud - Le Rondeau (sortie 8 - A480 )
01 09 1983 : Diffuseur du Rondeau (A480 ), (réaménagement)
14 09 1984 : Diffuseur de La Cote (sortie 4)
15 06 1985 : Section États-Généraux - Technisud (sorties 7 à 8), (seconde chaussée avec dénivellation des carrefours)
12 07 1985 : Section Meylan - Glairons (A41 - sortie 2)
12 07 1985 : Section Glairons - Le Chemin-de-Rhue (sortie 2 - D112), (seconde chaussée avec dénivellation des carrefours)
12 07 1985 : Diffuseur de Glairons (sortie 2)
15 10 1985 : Section Le Chemin-de-Rhue - Poisat (D112 - D269A ), (seconde chaussée avec dénivellation des carrefours)
xx xx 1986 : Diffuseur des États-Généraux (sortie 7)
xx 09 1987 : Section Poisat - Centre (D269A - sortie 5), (seconde chaussée avec dénivellation des carrefours)
xx 11 1987 : Section Centre - États-Généraux (sorties 5 à 7), (seconde chaussée avec dénivellation des carrefours)
xx 12 1987 : Diffuseur de Technisud (sortie 8)
xx xx 1991 : Diffuseur d'Alpexpo (sortie 6)
31 10 2002 : Échangeur avec l'A41 , (élargissement à 2 voies, sens Rocade - Chambéry)
xx 12 2007 : Diffuseur de Vignate (sortie 1), (réaménagement)
12 11 2012 : Diffuseur de Meylan-centre (bretelle ajoutée sur l'échangeur avec l'A41 )
Tracé Isère (38) N87 A41 E712 A41 Grenoble-centre | Hopital Nord || Chambéry | Annecy | Genève | Chamonix-Mont-Blanc E712 -centre ) : Villes desservies : Meylan, La Tronche
N87 E712 (sens Meylan > Seyssins) ZI Mayencin , Domaine Universitaire
D523 D1087 Centre , Uriage, Saint-Martin-d'Hères
Centre , Z.I Sud de Teissère , Le Village , Poisat
Centre , Eybens, Bresson
(sens Seyssins > Meylan) Alpexpo , Grand'Place , Hôpital sud , Patinoire
Centre , Villeneuve
D1075 Libération , Echirolles-Ouest , Pont de Claix
A480 Grenoble-centre | Lyon | Valence || Gap | Briançon | Sisteron E712 E713 N87 D6 Voir aussi Sites Sara Les routes nationales actuelles en France Liste complète des Routes nationales actuelles Routes nationales historiques Articles liés aux Voies express (
Liste , Carte , Chronologie ) ·
Grands itinéraires routiers ·
Nomenclatures (
Routes nationales , Anciennes routes nationales ) ·
Périphériques et Rocades (
Actuels , Anciens ) ·
Point zéro des routes de France ·
Réformes (
1811 , 1824 , 1930 , 1949 , 1951 , 1972 , 2005 , IDF ) ·
Réseau routier français ·
Renforcements coordonnés ·
Routes à grande circulation ·
Routes agricoles ·
Routes coloniales ·
Routes départementales ·
Routes européennes ·
Routes forestières corses ·
Routes impériales ·
Routes métropolitaines ·
Routes nationales ·
Routes royales ·
Routes salicoles ·
Routes stratégiques ·
Routes territoriales ·
Routes thermales ·
Voies communales ·
Voirie primaire ·
Voiries sans statut
Voir l'article : Rocade de Grenoble.
L'Hérault 
