Route départementale française D508 (95)

Route départementale D508 (95)
La D508 (95) à Ermont en direction de Franconville. © Google Maps
Localisation
Pays	France
Département	Val-d'Oise (95)
Caractéristiques actuelles
Itinéraire	D192 - D405 (Ermont - Franconville)
Longueur	3 km

Présentation

• La route départementale D508 (95), ou RD508 (95), est une courte route départementale du Val-d'Oise (95) qui relie Ermont à Franconville.
• Aussi connue sous le nom de Huitième Boulevard, cette route se présente sous la forme d'une artère urbaine à 2x2 voies, sauf à ses extrémités où elle demeure à 2 voies munie d'un terre-plein central selon les sections.
• Elle dispose d'un accès direct à l'A115 (sortie 1) ainsi qu'à plusieurs routes départementales, facilitant l'accessibilité aux agglomérations précitées.

Historique

Huitième Boulevard

• Le projet de Huitième Boulevard visait à relier le Boulevard Intercommunal du Parisis à l'A15, en contribuant à une desserte Est - Ouest des villes de Saint-Gratien, d'Ermont, de Franconville et de Montigny-lès-Cormeilles.
• Concomitamment à plusieurs opérations d'habitat menées à Ermont et Franconville, cette infrastructure est mise en service d'Est en Ouest comme suit :
  • Section Rue de Sannois - Rue du Docteur Roux à Ermont : 1990 (première chaussée).
  • Section Rue du Docteur Roux - Avenue du Président Georges Pompidou à Ermont : 1978 (première chaussée).
  • Section Avenue du Président Georges Pompidou - Rue d'Ermont, entre Ermont et Franconville : 1975 (première chaussée) et 1981 (seconde chaussée).
  • Section Rue d'Ermont - Troisième Avenue à Franconville : 1978 (première chaussée) et 1981 (seconde chaussée).
  • Section Troisième Avenue - Rue du Bel Air à Franconville : 1980 (2 voies).
  • Section Rue du Bel Air - Boulevard Maurice Bertaux à Franconville : 1987 (2 voies).
  • Section Boulevard Maurice Bertaux - Rue du Plessis-Bouchard à Franconville : 1989 (2 voies).
  • Section Rue du Plessis-Bouchard - Avenue des Marais à Franconville : 1979 (2 voies).
  • Section Avenue des Marais - Chemin Vert des Gratte Boeufs à Franconville: 1980 (section classée dans la voie communale).
• En prévision de son bouclage entre Saint-Gratien et Ermont, le Huitième Boulevard est inscrit dans le Plan Routier Départemental puis adopté par le Conseil départemental du Val-d'Oise en 1997. Ce projet a finalement été abandonné, en raison du refus exprimé par les agglomérations concernées.
• En 2006, dans le cadre de l'élaboration du Plan Local d'Urbanisme d'Ermont, la préservation des emprises utiles à ce tronçon a été brièvement évoquée par le Conseil départemental. Ce projet est à nouveau suspendu par la municipalité d'Ermont, compte-tenu des nombreuses habitations présentes sur le tracé, rendant particulièrement difficile la réalisation de cet axe.
• La traversée de Franconville conserve ses emprises aisément identifiables sur les cartes tandis que le reste de l'itinéraire joignant Montigny-lès-Cormeilles a été partiellement remplacé par l'Allée des Impressionnistes, aménagée en 2013.

Autres aménagements

• Traversée d'Ermont :
  • Giratoire de la Rue de Sannois (D192) : 1996.
  • Giratoire de l'Allée des Marronniers : décennie 2000.
  • Giratoire de la Rue du Général Decaen : décennie 2000.
  • Giratoire de l'Avenue du Président Georges Pompidou (D140) : 1990.
  • Diffuseur d'accès à l'A115 (sortie 1) (réaménagement des affectations de voies sur l'ouvrage surplombant l'autoroute) : 2007.
• Traversée de Franconville :
  • Giratoire de la Rue du Docteur Roux : décennie 2000.
  • Giratoire de l'Avenue des Marais (D405) : 1996.

Tracé

Chargement de la carte...

{"type":"HYBRID","minzoom":false,"maxzoom":false,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"mappingservice":"googlemaps3","width":"550px","height":"450px","centre":{"text":"","title":"","link":"","lat":48.99493929999999863866833038628101348876953125,"lon":2.225992213750000114913518700632266700267791748046875,"icon":""},"title":"","label":"","icon":"","lines":[{"text":"","title":"","link":"","strokeColor":"#408080","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":48.97676936966058036659887875430285930633544921875,"lon":2.2669963538646697998046875},{"lat":48.976875000031469653549720533192157745361328125,"lon":2.2663740813732147216796875},{"lat":48.97700879817995200937730260193347930908203125,"lon":2.2658269107341766357421875},{"lat":48.97712851200838457543795811943709850311279296875,"lon":2.2653226554393768310546875},{"lat":48.9772552675133425736930803395807743072509765625,"lon":2.2647540271282196044921875},{"lat":48.9773608968545914876813185401260852813720703125,"lon":2.2642175853252410888671875},{"lat":48.9774524421026313802940421737730503082275390625,"lon":2.2635738551616668701171875},{"lat":48.9775299033349966748573933728039264678955078125,"lon":2.2632627189159393310546875},{"lat":48.97767778353530587764907977543771266937255859375,"lon":2.2629193961620330810546875},{"lat":48.978043961190678601269610226154327392578125,"lon":2.2621576488018035888671875},{"lat":48.9777622863099253436303115449845790863037109375,"lon":2.2627370059490203857421875},{"lat":48.97788199832873345940242870710790157318115234375,"lon":2.2624795138835906982421875},{"lat":48.97803691933805936287171789444983005523681640625,"lon":2.2621791064739227294921875},{"lat":48.9781988816966276090170140378177165985107421875,"lon":2.2619216144084930419921875},{"lat":48.9790228120145201273771817795932292938232421875,"lon":2.25921057164669036865234375},{"lat":48.97910745908389884561984217725694179534912109375,"lon":2.25895307958126068115234375},{"lat":48.9792219813607090372897800989449024200439453125,"lon":2.25851319730281829833984375},{"lat":48.97934148258642750306535162962973117828369140625,"lon":2.25811086595058441162109375},{"lat":48.979520733887767391934175975620746612548828125,"lon":2.25751005113124847412109375},{"lat":48.979635255215043798671104013919830322265625,"lon":2.25711308419704437255859375},{"lat":48.97971990124430163859869935549795627593994140625,"lon":2.25668929517269134521484375},{"lat":48.97979458879785141789398039691150188446044921875,"lon":2.25638888776302337646484375},{"lat":48.97984935959930652416005614213645458221435546875,"lon":2.25608848035335540771484375}]},{"text":"","title":"","link":"","strokeColor":"#FCFF07","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":48.979849359599000990783679299056529998779296875,"lon":2.2560884803533998166358287562616169452667236328125},{"lat":48.97995392187130647698722896166145801544189453125,"lon":2.25555203855037689208984375},{"lat":48.98004380707376270720487809740006923675537109375,"lon":2.2551839053630828857421875},{"lat":48.9802128044574232035301974974572658538818359375,"lon":2.2542934119701385498046875},{"lat":48.98036771822238932827531243674457073211669921875,"lon":2.2532849013805389404296875},{"lat":48.98048038247627999908218043856322765350341796875,"lon":2.2520725429058074951171875},{"lat":48.98057192199504328300463384948670864105224609375,"lon":2.2511176764965057373046875},{"lat":48.98065641986317331202371860854327678680419921875,"lon":2.2502808272838592529296875},{"lat":48.98078316639672635801616706885397434234619140625,"lon":2.2494761645793914794921875},{"lat":48.9810014513378604306126362644135951995849609375,"lon":2.2485642135143280029296875},{"lat":48.9812479009288068709793151356279850006103515625,"lon":2.2478668391704559326171875},{"lat":48.98159996965900830900864093564450740814208984375,"lon":2.2470407187938690185546875},{"lat":48.9820858204224833798434701748192310333251953125,"lon":2.2459678351879119873046875},{"lat":48.98282514945315568866135436110198497772216796875,"lon":2.2443585097789764404296875},{"lat":48.9832757827204687828270834870636463165283203125,"lon":2.2432963550090789794921875},{"lat":48.98371937086323413268473814241588115692138671875,"lon":2.2422556579113006591796875},{"lat":48.98417703703085379629555973224341869354248046875,"lon":2.2413115203380584716796875},{"lat":48.98457133066640523111345828510820865631103515625,"lon":2.2403995692729949951171875},{"lat":48.98514164272669546562610776163637638092041015625,"lon":2.2391228377819061279296875},{"lat":48.9856133773999005143195972777903079986572265625,"lon":2.2380821406841278076171875},{"lat":48.98605694473533134214449091814458370208740234375,"lon":2.2371165454387664794921875},{"lat":48.98643010149917387252571643330156803131103515625,"lon":2.2362153232097625732421875},{"lat":48.9865779552930149520761915482580661773681640625,"lon":2.2357217967510223388671875},{"lat":48.98684549913816255184428882785141468048095703125,"lon":2.2350136935710906982421875},{"lat":48.9870355952078426753359963186085224151611328125,"lon":2.2344665229320526123046875},{"lat":48.98726089331429278672658256255090236663818359375,"lon":2.2339408099651336669921875},{"lat":48.98743690675114947907786699943244457244873046875,"lon":2.2334580123424530029296875},{"lat":48.9876129195662741722117061726748943328857421875,"lon":2.2327820956707000732421875},{"lat":48.98778189128387339223991148173809051513671875,"lon":2.2321920096874237060546875},{"lat":48.98810575214094598095471155829727649688720703125,"lon":2.2314088046550750732421875},{"lat":48.98832400500955230882027535699307918548583984375,"lon":2.2308830916881561279296875},{"lat":48.988570418389599581132642924785614013671875,"lon":2.2303251922130584716796875},{"lat":48.98880979022052173377232975326478481292724609375,"lon":2.2298638522624969482421875},{"lat":48.9891406846814305708903702907264232635498046875,"lon":2.2295419871807098388671875},{"lat":48.98951381835223628513631410896778106689453125,"lon":2.2292630374431610107421875},{"lat":48.98982358757869093324188725091516971588134765625,"lon":2.2289840877056121826171875},{"lat":48.99004183292273495453628129325807094573974609375,"lon":2.2286622226238250732421875},{"lat":48.99036567909086414829289424233138561248779296875,"lon":2.2280506789684295654296875},{"lat":48.99073176352880665263000992126762866973876953125,"lon":2.2271494567394256591796875},{"lat":48.99164696285555464783101342618465423583984375,"lon":2.2245208919048309326171875},{"lat":48.9919144794834409140094066970050334930419921875,"lon":2.2236518561840057373046875},{"lat":48.99209047648154324861025088466703891754150390625,"lon":2.2234050929546356201171875},{"lat":48.99221015408515000899569713510572910308837890625,"lon":2.2231261432170867919921875},{"lat":48.99225239317070901279294048435986042022705078125,"lon":2.2224394977092742919921875}]},{"text":"","title":"","link":"","strokeColor":"#FFFFFF","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":48.9922523931710003353146021254360675811767578125,"lon":2.22243949770930004916635880363173782825469970703125},{"lat":48.99225943301481578373568481765687465667724609375,"lon":2.2222141921520233154296875},{"lat":48.992533986159315873010200448334217071533203125,"lon":2.2209911048412322998046875},{"lat":48.99320276312831623499732813797891139984130859375,"lon":2.2183947265148162841796875},{"lat":48.993519549085391417975188232958316802978515625,"lon":2.2170321643352508544921875}]},{"text":"","title":"","link":"","strokeColor":"#408080","strokeOpacity":"1","strokeWeight":"5","pos":[{"lat":48.993519549085391417975188232958316802978515625,"lon":2.2170321643352508544921875},{"lat":48.99392366824692857107947929762303829193115234375,"lon":2.215362489223480224609375},{"lat":48.99451499184699088118577492423355579376220703125,"lon":2.213195264339447021484375},{"lat":48.9951344661854051310001523233950138092041015625,"lon":2.210555970668792724609375},{"lat":48.9957820902117191508295945823192596435546875,"lon":2.208496034145355224609375},{"lat":48.9961622134363068425955134443938732147216796875,"lon":2.207187116146087646484375},{"lat":48.99734480047381879330714582465589046478271484375,"lon":2.203753888607025146484375},{"lat":48.99816133228097925211841356940567493438720703125,"lon":2.201050221920013427734375},{"lat":48.99873852772453375337136094458401203155517578125,"lon":2.199290692806243896484375},{"lat":48.9991608616163745182348066009581089019775390625,"lon":2.198110520839691162109375},{"lat":48.99965357996415349361996049992740154266357421875,"lon":2.196415364742279052734375},{"lat":49.0003152226494904653009143657982349395751953125,"lon":2.194505631923675537109375},{"lat":49.00049536918543680030779796652495861053466796875,"lon":2.1938471496105194091796875},{"lat":49.00072060642845173106252332217991352081298828125,"lon":2.1931390464305877685546875},{"lat":49.001002151549840846200822852551937103271484375,"lon":2.1924202144145965576171875},{"lat":49.00130481078025468377745710313320159912109375,"lon":2.1916262805461883544921875},{"lat":49.001558198488879725118749774992465972900390625,"lon":2.1909181773662567138671875},{"lat":49.001797507918894325484870932996273040771484375,"lon":2.1903924643993377685546875},{"lat":49.002093123862465517959208227694034576416015625,"lon":2.1899311244487762451171875},{"lat":49.00237466122502638654623297043144702911376953125,"lon":2.1895663440227508544921875},{"lat":49.00270546559232798244920559227466583251953125,"lon":2.1891908347606658935546875},{"lat":49.0029658845058975202846340835094451904296875,"lon":2.1888367831707000732421875},{"lat":49.00324741693466279457425116561353206634521484375,"lon":2.1885256469249725341796875},{"lat":49.0034747312148368791895336471498012542724609375,"lon":2.18824468553066253662109375}]}],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"visitedicon":"","wmsoverlay":false,"zoom":12,"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\u003EErmont\n\u003C/p\u003E\u003C/div\u003E","title":"Ermont\n","link":"","lat":48.9767693696609995868129772134125232696533203125,"lon":2.2669963538646999978709573042578995227813720703125,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EMontigny-l\u00e8s-Cormeilles\n\u003C/p\u003E\u003C/div\u003E","title":"Montigny-l\u00e8s-Cormeilles\n","link":"","lat":49.00347473121500030401875847019255161285400390625,"lon":2.1882446855306998401147211552597582340240478515625,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EErmont\n\u003C/p\u003E\u003C/div\u003E","title":"Ermont\n","link":"","lat":48.979849359599000990783679299056529998779296875,"lon":2.2560884803533998166358287562616169452667236328125,"icon":""},{"text":"\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EFranconville\n\u003C/p\u003E\u003C/div\u003E","title":"Franconville\n","link":"","lat":48.99351954908500061947052017785608768463134765625,"lon":2.217032164335300148394480856950394809246063232421875,"icon":""}]}

Légende de la carte
En jaune	Tracé de la D508 (95).
En blanc	Tracé du Huitième Boulevard réalisé sous forme de voies communales.
En gris	Tracé du Huitième Boulevard (non-réalisé et abandonné vers 2003).
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.

Signalisation sur la D508 (95) à Franconville.
© Julien vitry 94

• Val-d'Oise (95) - D508
  • Ermont Club des Espérances
    •   D192 La Mare Guay
    •  
    • La Commanderie  
    • Les Carreaux   D140 D401
  • Franconville
    •  A115   1 
    • L'Orme Saint-Edme D403
    • Le Bel Air
    • Les Pâtis D139
    •  
    • Patinoire   D405