| Number | Route | Opened | Notes |
| Bologna has had three systems. st--1940-1945, 2nd--1955-1982, current one reopened in 1990. | |||
| 13 | S . Ruffillo Ponte Savena -- Normandia | 1990 | |
| 14A | Giovanni XXIII -- Dep. Due Madonne | ---- | All three branches are under construction. |
| 14B | Giovanni XXIII -- Z. I. Roveri Rot. Negroni | ---- | |
| 14C | Giovanni XXIII -- Pilastro | ---- | |
| 20 | ?? | This line alleged to have opened, but apparently this is not the case. | |
| 32 | Stazione FS, Porta Galliera, Porta Mascarella, Porta San Vitale, Porta Mazzini, Porta Santo Stefano, Porta Castiglione, Porta San Mamolo, Porta Saragozza, Porta Sant'Isaia, Porta San Felice, Porta Lame, Stazione FS. |
2000 | Circular Route/33. Operates on Sundays. Uncertain whether clockwise or counter clockwise. |
| 33 | Reverse of above. | 2000 | Circular Route/32. Does not operate on Sundays. |
This page last updated 18 DE 2003.
