From 5 September night time traffic restrictions in areas known as the ZTL (Zona Traffico Limitato) will begin again in the historical centre, Testaccio, and Monti. They have been enforced in S. Lorenzo since 3 September. The night time ZTL will be back from 23.00 to 3.00 on Fridays and Saturdays. To facilitate movement through the city on these nights, from 20.00 to 3.00 buses 115, 116T, 117, 119, 121, and 125 will be more frequent. Moreover, the last trains of the metro lines A and B will leave from the end of the line at 1.30 instead of 23.30.

The day time ZTL continues and it covers a larger area of the centre than the night time ZTL and is activated Monday through Friday 6.30 to 18.00 and Saturday 14.00 to 18.00, except for the area known as the