 As of that change, there are 2 metro lines and 35 bus routes, made up from 10 urban trolleybus services, 20 urban bus routes and 5 regional bus routes.The whole network, with a length of , serves 274,380 inhabitants.M2 is the busiest route, with more than 55,000 passengers transported per day, followed by the M1 with 43,500 passengers per day during university terms.