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The A1 is a motorway in Switzerland. It follows Switzerland's main east-west axis, from St. Margrethen in northeastern Switzerland's canton of St. Gallen through to Geneva in southwestern Switzerland. The motorway spans over 200 kilometres (120 mi) through Switzerland. Besides the motorway's main route, it has several branches that are variously numbered A1a, A1h, A1l and A1.1. It was opened for the Swiss national exhibition of 1964.
With the build of the third Baregg Tunnel tube,[clarification needed] the traffic jams in this area were reduced, but the Gubrist Tunnel remains with the old capacity as a new point of heavy traffic.[clarification needed][citation needed]
The A1 motorway is connected via a taxiway at the hangar 5 with the airfield of Payerne Air Base and can, if necessary, used as runway for take off - and landing. However, this possibility has never been used since the construction of the highway.[1]
Media related to A1 (Switzerland) at Wikimedia Commons
