# A43 autoroute

The A43 autoroute, also known as l'autoroute alpine and l'autoroute de la Maurienne, is a motorway in France. Travelling through the French Alps, the road connects the city of Lyon with the Tunnel du Fréjus, near Modane, which passes the Italian border towards Turin. The autoroute opened in phases as it was constructed between 1973 and 1998.

## Characteristics

* 2×2 lanes
* 2x3 lanes between the Boulevard Périphérique in Lyon, the A46 and the A48 (34 km)
* 2×4 lanes between the A46 and the A432 (7 km)
* 4+3 lanes between the A432 and the toll barrier at Saint-Quentin-Fallavier (7 km)
* 208 km long
* Service areas

## History

* 1973: Opening of the section between Lyon and Bourgoin-Jallieu.
* 1974: Opening of the section between Bourgoin-Jallieu and Chambéry.
* 1990: Widening of the road to 2x3 lanes between Saint-Quentin-Fallavier and the junction with the A48.
* 1991: Opening of the L'Epine Tunnel.
* 1991: Opening of section between Montmélian (A41) and Aiton. The section previously numbered A41 between Chambéry and Montmélian was re-numbered the A43.
* 1996: Opening of section between Aiton and Saint-Jean-de-Maurienne.
* 1998: Opening of section between Saint-Jean-de-Maurienne and Saint-Michel-de-Maurienne.
* 2000: Opening of section between Saint-Michel-de-Maurienne and Freney, and the incorporation of the N566 approach to the Fréjus Tunnel.
* 2002: Completion of Junction 11.
* 2004: Completion of Junction 20.

## Junctions

| Exit/Junction | Destination |
| | Lyon-Avenue Jean Mermoz Autoroute commences in Lyon City Centre. |
| 1 | (Boulevard Pinel) Towns served: Lyon |
| | Exchange A43-N383 (Boulevard périphérique) N 383 Towns served: Lyon |
| 2a | (Bron Parilly) Towns served: Lyon |
| 2 | (Bron Rebufer) Towns served: Lyon |
| 3 | (Porte des Alpes) Towns served: Lyon |
| 4 | (Le parc technologique-Bron Aviation) Towns served: Lyon |
| | Exchange A43-N346-A46 Junction with N 346 to Paris and A 46 to Marseille |
| Rest Area: St-Priest/Manissieux ||
| | Exchange A43-A43 Junction with A 432 to Aéroport Lyon St-Exupéry and Strasbourg |
| 5 | (L'Isle-d'Abeau Chesnes-Heyrieux) Towns served:Heyrieux |
| Péage de Lyon St Quentin Fallavier ||
| 6 | (Villefontaine-La Verpillière) Towns served: Villefontaine |
| Service Area: L'Isle-d'Abeau ||
| 7 | (L'Isle-d'Abeau centre) Towns served: L'Isle-d'Abeau |
| 8 | (Bourgoin-Jallieu) Towns served: Bourgoin |
| Rest Area: Le Vernay/Coiranne ||
| | Exchange A43-A48 Junction with A 48 to Grenoble and Marseille |
| 9 | (La Tour-du-Pin) Towns served: La Tour-du-Pin |
| Rest Area: Les Marouettes/Les Sitelles ||
| 10 | (Chimilin-Les Abrets) Towns served: Chimilin-Les Abrets |
| Rest Area: Romagnieu/Le Guiers ||
| 11 | (Belmont-Tramonet-St-Genix-sur-Guiers) Towns served: Belmont-Tramonet |
| Rest Area: Le Lavaret/L'Omble ||
| 12 | (Lac d'Aiguebelette) Towns served: Lac d'Aiguebelette |
| | Exchange A43-A41 Junction with A 41 to Annecy |
| 12a | (Chambéry-nord) Towns served: Chambéry |
| | Exchange A43-N201 The autoroute becomes the N 201 through Chambéry |
| | Exchange N201-A43 The autoroute re-commences |
| 20 | (St-Baldoph-Challes-les-Eaux) Towns served: St-Baldoph-Challes-les-Eaux |
| Service Area: Le Granier/L'Abis' ||
| Péage de Chignin ||
| 21 | (Chignin-Les Marches) Towns served: Chignin-Les Marches |
| | Exchange A43-A41 Junction with the A 41 to Grenoble |
| 22 | (Montmélian) Towns served: Montmélian |
| Rest Area: Val Gelon/L'Arcluzaz ||
| 23 | (St Pierre-d'Albigny) Towns served: St Pierre-d'Albigny |
| | Exchange A43-A430 Junction with the A 430 to Albertville |
| 24 | (Aiton) Towns served: Aiton |
| Rest Area: St Pierre-de-Belleville (southbound) ||
| 25 | (Epierre) Towns served: Epierre |
| Rest Area: St-Léger (northbound) ||
| 26 | (La Chambre) Towns served: La Chambre |
| Rest Area: Ste-Marie-de-Cuines/St-Avre ||
| 27 | (Hermillon-St-Jean-de-Maurienne) Towns served: St Jean-de-Maurienne |
| 28 | (St Julien-Montdenis-St Jean-de-Maurienne) Towns served: St Jean-de-Maurienne |
| Service Area: St Julien-Montdenis (northbound) ||
| Service Area: 'Rieu Sec (Petrol only) (southbound) ||
| 29 | (St Michel-de-Maurienne) Towns served: St Michel-de-Maurienne |
| Péage de St Michel-de-Maurienne ||
| Autoroute becomes single lane. ||
| 30 | (Le Freney-Modane) Towns served: Le Freney-Modane |
| 31 | (Valfréjus) Towns served: Valfréjus |
| Péage - Tunnel du Fréjus ||
| Road enters tunnel re-emerging as the A 32 in Italy towards Turin. ||