In the 1990s the government attempted to reorganize the public transport system. New routes were introduced in 1994 and the buses were painted yellow. The system, however, had serious issues with routes overlapping, high levels of air and noise pollution, and safety problems for both riders and drivers. To tackle these issues a new transport system, called Transantiago, was devised. The system was launched in earnest on 10 February 2007, combining core services across the city with the subway and with local feeder routes, under a unified system of payment through a contactless smartcard called "Tarjeta bip!" The change was not well received by users, who complained of lack of buses, too many bus-to-bus transfers, and diminished coverage. Some of these problems were resolved, but the system earned a bad reputation which it has not been able to shake off. , the fare evasion rate is stubbornly high.