Avenida General Paz (official name Ruta Nacional A001 - National Route A001) is a beltway freeway surrounding the city of Buenos Aires.

There are feeder roads in both directions and there are service areas along its length, usually with a gas station and fast food restaurants.

In Article 6 of that law it declared that a road was to be built to delimit these with the city of Buenos Aires.

The crossings with the most important avenues were grade-separated; more minor cross-streets were served with traffic circles.

Works started on 8 June 1937, completed in two stages, the first from Riachuelo to Liniers (to Ramón Falcón street).