Question: Which part of the United Nations international E-road network runs through Rhône-Alpes?

Context paragraphs:
European route E20: The European route E 20 is part of the United Nations International E-road network.

European route E24: The European route E 24 is part of the United Nations international E-road network.  It runs for 254 km from Birmingham to Ipswich.

European route E62: The European route E 62 is a road in Europe and a part of the United Nations International E-road network.  Approximately 1307 km long, it connects the French Atlantic port city of Nantes to Genoa, largest of Italy's port cities.  Between France and Italy it also passes through Switzerland, via Geneva and Lausanne.  After crossing into Italy (shortly after the Simplon Pass, the highest point on the European route network inside Europe), the E 62 passes Milan, Italy's largest commercial and industrial centre, before descending to Genoa on the Mediterranean coast.

Transport in Rhône-Alpes: Rhône-Alpes is a major European transit hub, linking northern France and Europe to the Mediterranean area.  Millions travel along its motorways in summertime from Paris to holidays at the sea.  The E15 Euroroute (Britain to Spain) runs through the region.  There are international airports at Lyon, Grenoble and Saint-Étienne and many other minor airports and airfields.

European route E03: The European route E 03, is a series of road in Europe, part of the United Nations International E-road network, running from Cherbourg, France to La Rochelle, also in France.

European route E15: The European route E 15 is part of the United Nations international E-road network.  It is a north-south "reference road", running from Inverness, Scotland south through England and France to Algeciras, Spain.  Along most of its route between Paris and London, the road parallels the LGV Nord (as the French A1 autoroute) and High Speed 1 (as the English M20 motorway).  Its length is 2,300 mi .

European route E01: The European route E 01 is a series of roads in Europe, part of the United Nations International E-road network, running from Larne, United Kingdom to Seville, Spain.  There is a sea crossing between Rosslare Harbour, in Ireland, and Ferrol, but no ferry service.  The road also passes through Portugal – past the city of Porto, through the capital, Lisbon, and then south to the Algarve, passing Faro before reaching the Spanish border west of Huelva.

European route E09: The European route E 09 is part of the United Nations international E-road network.  It starts at Orléans, and goes south to Barcelona.

European route E313: The European route E 313 is a road in Europe and a part of the United Nations International E-road network.  Approximately 112 km long, it connects the Belgian port city of Antwerp to Liège, the commercial and industrial centre of Wallonia.  It runs thus entirely within Belgium: however, it does cross the language frontier within Belgium between the Dutch speaking north and the French speaking south which affects the roadside route signs and safety-message posters.  From the junction at Ranst where it splits from the E 34, it follows the Belgian A13.

European route E371: The E 371 is part of the United Nations international E-road network.  Approximately 358 km long, it runs from Radom, Poland south to Prešov, Slovakia.

Supporting paragraphs: Transport in Rhône-Alpes European route E15
Answer: European route E 15