Google Transit, a new interactive resource to help commuters calculate transit times, distances, routes and connections, has been launched on Rome’s public transport network.

The free service, which is available via Google Maps, is accessible by computer or mobile device and can be used on the city’s bus, tram, metro and regional railways.

Along with a street map it will provide you with the estimated time of reaching your destination by public transport, as well as by foot or driving.

To calculate a route just connect to Google Maps and enter details of your point of departure in Rome along with your destination, and choose between the various options. You will get a map and the various options available for your trip.

However the city admits that the system still needs to be perfected. For example, key in Colosseo to St Peter’s (probably one of the most popular tourist routes in Rome) and you will not get any public transport options. Instead you are told to walk (estimated time 45 mins). It is useful for those who already know the city well but complicated for those visiting for just a few days.

The service was launched in the capital after collaboration between the city’s bus company ATAC and Rome’s mobility agency.

The device can be accessed using ATAC’s recently-introduced free wi-fi service, available for up to one hour a day in certain areas of the city centre.