In 1972, passenger service—which had already been discontinued during the winter—was reduced to two daily trains during the summer.
To cope with the chronic congestion of the only road to reach the Quiberon peninsula from the mainland, the line was relaunched in 1985 with the introduction of single fare shuttles, jointly sponsored by the Brittany region and the SNCF as part of the TER Bretagne service. The name of this shuttle service is directly related to traffic jams that trains can avoid: "Corkscrew". This operation provides a more consistent service to the peninsula during the two months of the summer season. The rest of the year, a road bus service "TIM", organized by the department of Morbihan, links the stations of Auray and Quiberon.
Chronology
July 15, 1879: Declaration of public utility of a preliminary draft[1]
July 24, 1882: Commissioning of the line from Auray to Quiberon[2]
June 28, 1883: Transfer by the State to the Paris to Orléans Railway Company[3]
March 6, 1972: Closure of the line to serve omnibus passengers[4]
July 1, 1985: Commissioning of the “Tire-Bouchon” in July and August[5]