Raccordo autostradale 3 (RA 3; "Motorway connection 3") or Raccordo autostradale SienaâÂÂFirenze ("Motorway connection SienaâÂÂFlorence") is an autostrada (Italian for 'motorway') long in Italy located in the region of Tuscany, managed by ANAS, which connects Florence to Siena. It is a branch of the Autostrada A1. The siding was opened in 1964.