Transportation in Rome is wide and varied but, if it's the regular traffic you are interested in, it is often said that you would be better off staying at home. Much of the Roman revenue is derived from the more than 1,000,000 automobiles and motor scooters that add to an already difficult traffic situation in this city. In addition to this, the average noise during waking hours is at or above the level that gradually brings about deafness. The speed of motor traffic is not very high even though the audacity and acuity of the drivers is. In fact, deterioration of the city's monuments has been accelerated by traffic fumes and vibration and the monuments themselves have impeded the one thing that could help the situation, that being subway construction.
All is not lost, however, for transportation in the great city of Rome. The building of a subway from Rome's central railway station along a seven-mile southwestern route via the Colosseum makes things a bit easier. This line also goes from the Porta S. Paolo to the Esposizione Universale di Roma. This great line is now called Line B and it extends all the way to Ostia. The subway system is now a good alternative for tourists who would rather bypass the crowded traffic situation. In Rome, this may be your best bet.