Switzerland has a two-class highway system: motorways with separated roads for oncoming traffic and a standard maximal speed limit of 120 kilometres per hour (75 mph), and expressways often with oncoming traffic and a standard maximal speed limit of 100 kilometres per hour (62 mph).
Autobahnen in German, autoroutes in French, autostrade in Italian, autostradas in Romansch are the local names of the national motorways of Switzerland.
Autostrassen in German, semi-autoroutes in French, semiautostrade in Italian, autovias in Romansch are the local names of the national expressways.
The only exceptions are the Munt la Schera and Great St Bernard tunnels and the train shuttles carrying road vehicles.
The aviators and airport Regiment 3 with the DH-112 Venom performed exercises, which placed great demands on the infrastructure and the skill of the pilots.
Never tested following motorway sections: With the end of the Cold War and the restructuring of the Swiss Army objects are continuously released from the inventory of military infrastructure, including various national roads buildings.
After a devastating fire accident in 2001 and the subsequent renovation of the blocked section, explosives stored in a side chamber in the interior of the tunnel were removed during the reconstruction.
An exercise of landings and take-offs called "Alpha Uno" on the Payerne A1 section of the motorway was performed on 5 June 2024.