The A48 autoroute, also known as l'autoroute du Dauphiné, is a motorway in France connecting the A43 with the city of Grenoble.

An extension north to Ambérieu is proposed in the medium term.^{[citation needed]}

• 2x2 lanes
• 2x3 lanes between the A49 and A480 autoroutes (10 km)
• 97 km long
• Service areas

• 1968: The first toll free section opened between the Bastille (Grenoble northern edge) and Voreppe as part of the preparations for the Winter Olympics held in the city and surrounding area.
• 1975: Opening of the toll section between Voreppe and the A43 managed by AREA.

Exit/Junction	Destination
	Exchange A48-A43 A 43 to Lyon/Chambéry
Rest Area: Burcin
9	(Le Grand-Lemps) Towns served: Rives
Rest Area: Réaumont
10	(Champfeuillet) Towns served: Voiron
11	(Voiron-Moirans) Towns served: Voiron
	Exchange A49-A48 A 49 to Valence
12	(Veurey) Towns served: Voreppe
Péage de Voreppe
13	(Voreppe) Towns served: Voreppe
Rest Area: Voreppe/L'Isle Rose
14	(Saint-Egreve) Towns served: Saint-Egreve
15	(ZI Saint-Egreve-ZI/Saint-Martin-the-Vinoux) Towns served: Grenoble
	Exchange A48-A480 A 480 to Sisteron and Gap via A 51
16	(Europôle-Polygon Scientific Grenoble) Towns served: Grenoble

The following list indexes towns and places of interest that can be visited from the motorway:

• River Isère
• Col de Rossatière
• Lac de Paladru
• Chartreuse Mountains

There are proposals to extend the autoroute north from Bourgoin-Jallieu to Ambérieu-in-Bugey and connecting to the A42 autoroute.^{[citation needed]}

• A48 autoroute in Saratlas