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| A46 autoroute | |
|---|---|
| Country | FRA |
| Route | 46 |
| Length km | 47 |
| Direction a | North |
| Terminus a | Lyon |
| Direction b | South |
| Terminus b | Anse |
| Established | 1992 |
A46 autoroute
The A46 autoroute is a controlled-access highway in the Auvergne-Rhône-Alpes region linking the northern suburbs of Lyon with routes toward Villefranche-sur-Saône and Mâcon. It functions as a partial bypass for long-distance traffic around the metropolitan area of Lyon Metropolis and connects with major arteries serving France, including links toward A6 autoroute, A7 autoroute, and the trans-European corridors that feed into Geneva, Turin, and Marseille. The motorway crosses or skirts several communes and intercommunal structures such as Caluire-et-Cuire, Neuville-sur-Saône, and Rillieux-la-Pape.
The roadway begins near the northern approaches to Lyon and proceeds through a corridor adjacent to the Saône River valley, passing close to Villeurbanne, Vaulx-en-Velin, Decines-Charpieu, and the industrial zones associated with Lyon–Saint-Exupéry Airport before meeting radial autoroutes. Along its alignment the A46 interfaces with the urban edges of Saint-Priest and Bron and skirts the urban community of Pays de l’Ozon. It links with trunk roads that lead toward Roanne, Clermont-Ferrand, and Saint-Étienne, and provides access to sporting and cultural venues such as those in Lyon Part-Dieu and the Groupama Stadium area. The corridor negotiates varied terrain including floodplain adjacent to the Saône and suburban plateaus overlooking the Beaujolais hills near Anse.
Planning for a northern bypass to relieve traffic in Lyon dates to studies undertaken during the post-war expansion of the French autoroute network when administrators in Ministry of Transport (France) and regional planners in Rhône (department) sought solutions for freight and passenger flows toward Burgundy and Bourgogne-Franche-Comté. Construction phases in the late 20th century were influenced by policies from administrations including the cabinets of François Mitterrand and Édouard Balladur, and by concession arrangements with motorway companies such as ASF (Autoroutes du Sud de la France), APRR, and local concessionaires. Sections opened progressively during the 1990s amid debates involving environmental organizations like France Nature Environnement and municipal councils of Villeurbanne and Caluire-et-Cuire. Major upgrades in the 2000s addressed junction improvements tied to projects involving the A6 autoroute interchange and collaborations with regional bodies like Région Auvergne-Rhône-Alpes.
Key interchanges include connections with the A6 autoroute toward Paris and Lyon central approaches, a link to the A7 autoroute trunk toward Marseille and Avignon via the urban network, and spurs servicing D383 and departmental routes toward Villefranche-sur-Saône. The motorway provides exit access for communes including Rillieux-la-Pape, Sathonay-Camp, Fontaines-sur-Saône, and Anse, and integrates with ring-road elements such as the RN6 radial. Interchanges are designed to accommodate heavy goods vehicle traffic bound for regional logistic hubs near Saint-Quentin-Fallavier and ports of entry toward Geneva and Basel.
Traffic volumes on the A46 reflect its role as both commuter corridor for the Lyon Metropolis and strategic bypass for international freight moving between Northern Europe and Mediterranean destinations such as Marseille and Nice. Peak congestion historically occurs during morning and evening commuter peaks affecting connections to Lyon Part-Dieu and to business parks like those near Eurexpo Lyon. Tolling on the A46 has been administered under concession models common to French autoroutes involving operators similar to Vinci Autoroutes and regional concessionaires; tolls are adjusted according to national tariff reviews involving the Direction des Routes and contractual terms with investors. Enforcement and safety involve agencies including the Gendarmerie Nationale and regional traffic management centers coordinating with Métropole de Lyon.
Service areas and rest stops along the corridor provide fuel from national retailers such as TotalEnergies and amenities linked to service operators often active on French motorways, offering food, parking, and truck parking zones near urban exits serving Bron and Saint-Priest. Emergency telephones, electronic signage, and maintenance facilities are operated in coordination with concessionaires and municipal emergency services including SDIS Rhône. Nearby commercial zones accessible from the A46 include logistics parks, retail centers around Villefranche-sur-Saône, and business clusters that house firms connected to the regional economy such as those in tech and manufacturing sectors centered in Lyon.
Proposals for capacity improvements and new links have been considered by regional planners in Région Auvergne-Rhône-Alpes and by national ministries, including potential upgrades to junctions to relieve bottlenecks and studies of multimodal freight lanes connecting to Lyon–Saint-Exupéry Airport and rail freight terminals such as those near Saint-Quentin-Fallavier. Debates have involved stakeholders including municipal councils of Caluire-et-Cuire, environmental groups like Greenpeace France, and transport unions; proposals range from flyover construction to managed lanes and integration with urban transit projects such as extensions of Lyon Metro lines and coordination with TER Auvergne-Rhône-Alpes rail services. Long-term scenarios link A46 adjustments to trans-European transport planning with corridors identified by TEN-T policy and freight distribution strategies toward ports like Marseille-Fos.
Category:Motorways in France