A2

A2, A02, A002, A², A.II or A-2 may refer to:

Media

Military

A2 motorway (Switzerland)

The A2 is a motorway in Switzerland. It forms Switzerland's main north-south axis from Basel to Chiasso, meandering with a slight drift toward the east.

The A2 motorway leaves Basel heading south toward Olten, Sursee, Luzern, Stans, Altdorf, Erstfeld, Göschenen, Airolo, Biasca, Bellinzona, Lugano and reaches Chiasso.

It intersects with the A1, A8, A13 and A14 motorways.

The St. Gotthard Tunnel lies on the way. Traffic jams stretching for kilometres on end are frequently found on both entrances of the tunnel, but more frequently on the northern flank. The difficulty with driving through the St. Gotthard tunnel is that it is a motorway tunnel with one lane per direction, but without a central reservation. So far, plans for a second Gotthard tunnel have been rejected or otherwise failed to come to fruition.

Near Lucerne, this motorway passes through the Sonnenberg Tunnel, which until recently was the world's largest nuclear blast shelter.

This is one of the most driven-on motorways in Switzerland.

A2 (theater)

A2 is an abbreviation for "Production Audio Technician", Audio Assistant, Second Audio Assistant, or Second Assistant Audio Engineer. Any of these three terms, or any similar term such as Mic Wrangler, may be used to describe the same set of duties.

An A2 is a stagehand who is responsible for the upkeep, acquisition, and use of microphones, backstage monitors, communication systems, and the audio system. There are typically one or two people with this job title associated with any major theatrical production making use of such audio elements. The term "A2" refers to the fact that this person is frequently the second in command on all matters relating to sound during the performance, reporting directly to the Production Audio Engineer, or A1. In addition to his or her own responsibilities, the A2 often acts as an understudy for the A1.

In touring theatre, the A2 is often responsible for overseeing the load-in of all backstage audio elements.

In musical theatre, the A2 may or may not be the technical liaison to the orchestra, and duties could include monitor mixing, placement and upkeep of microphones in the orchestra, and video feeds to and from the conductor.