There are 68 bus and 4 trolleybus lines in Milan. Most of the routes do not run during the night, however, bus services on demand are available in the weekend at night. New night bus lines during weekends have been introduced since 24 September 2011, running from 2 am to 6 am on Fridays and Saturdays. The new network was considered a success, with more than 8,000 people using the lines every weekend. Public transport statistics The average amount of time people spend commuting with public transit in Milan on a weekday is 64 min. 14% of public transit riders ride for more than 2 hours every day. The average amount of time people wait at a stop or station for public transit is 11 min, while 12% of riders wait for over 20 minutes on average every day. The average distance people usually ride in a single trip with public transit is 7.7 km, while 14% travel for over 12 km in a single direction. National and international rail Milan is one of the most important hubs for the national and international rail network in Italy. Milan Central station is the second station in Italy both for size and passengers after Rome. It is also the main node for high-speed rail lines in northern Italy. Milano Cadorna and Milano Porta Garibaldi stations are respectively the seventh and the eleventh busiest stations in Italy. Because of its position, Milan is also the main gateway for international passenger traffic to Europe. Daily international destinations include Bern, Lugano, Geneve, Zurich, Paris, Nice, Marseille, Wien, Barcelona and Munich. Milan is also the core of Lombardy's regional train network. Regional trains were operated on two different systems by LeNord (departing from Milano Cadorna) and Trenitalia (departing from Milan Centrale and Milano Porta Garibaldi). Beginning in 2011, a new company, Trenord, operates both Trenitalia and LeNord regional trains in Lombardy. Roads Milan is a key node for the Italian road network, being the junction between the east-west A4 highway to Turin and Venice and the north-south A1 highway to Rome and Naples. Other important highways, such as the A7 to Genova and the A8-A9 to Switzerland, also serve the city. Highways reaching Milan are linked together by a ring road formed by the 3 tangenziali (the A50, A51 and A52) and part of the A4 highway, with a total length of over 100 km around