the magnetic farecard and the first air-conditioned bus interchange opened in Toa Payoh; by the end of 2019, there will be 11 air-conditioned integrated transport hubs (ITH). In 2006, SBS Transit introduced into service its first wheelchair accessible bus, the Volvo B9TL, on route 21 between Pasir Ris and St. Michael's. SSB wound up in 2007 with the discontinuation of the City Shuttle Service and its fleet was inherited by SMRT Buses. By 2009, both SBS Transit and SMRT Buses were renewing their respective bus fleets with new low-entry Scania K230UB buses and Mercedes-Benz OC500LE buses respectively. LTA took on the role of central bus network planner from 2009, working with communities and the bus operators, SBS Transit (SBST) and SMRT Buses (SMRTB), to identify areas for bus improvements and to shift the focus to placing the commuter at the centre and taking a holistic approach in planning the bus network, taking into consideration development in the Rapid Transit System (RTS) network and other transport infrastructure. It is meant for their feedbacks, and any changes will be under the monthly updates, this has been brought through Bus Services Enhancement Programme. Under BSEP, about 80 new services are being introduced and 1000 buses are being added over five years. Quality of Service (QoS) standards have also been tightened to reduce waiting time and reduce crowding. Now, those with increased loads run every 10 minutes or less during weekday peak hours in 2015. Feeder bus services have become more frequent too, with 95% of bus services now running at intervals of 10 minutes or less during the weekday peak periods, tightened from 85%. It was also in the 21st century when the public bus operators looked into alternative fuel sources. In 2002, SBS purchased 12 CNG-powered Volvo B10BLE buses whereas the first hybrid buses and hydrogen fuel cell buses were introduced in 2010. 2010s: Government leans in Since the early years of independence, the government has maintained its stance that heavy car usage is not sustainable for Singapore in the long term with a mixed-use of policies to both deter car usage and to push its people to take public transport. In December 2011, the North South MRT Line suffered its first major breakdowns with 127,000 passengers affected in the worst of them. Amid growing criticism of the existing operating model and growing strain on the bus system, the main public transport