Autostrada Connection 1
Raccordo autostradale 1
Tangenziale di Bologna
Route information
Maintained by ANAS
Length22.2 km (13.8 mi)
Major junctions
FromCasalecchio di Reno
ToSan Lazzaro di Savena
Highway system
  • Roads in Italy

The Tangenziale di Bologna, or Bologna ring road (officially known as RA 1), is an Italian motorway serving the urban area Bologna.

It runs parallel to Autostrada A14 from Casalecchio di Reno, west of Bologna, to San Lazzaro di Savena, east of Bologna.

It was projected by engineers Francesco Fantoni and Giorgio Mondini; construction works lasted three years, and the infrastructure was inaugurated on 12 July 1967.[1][2]


  1. ^ "La tangenziale di Bologna". Retrieved 29 July 2019.
  2. ^ "N TANGENZIALE E IRA TRO1MMB1I E QUADRIFOGLI" (PDF). Retrieved 29 July 2019.