NEW YORK, Nov. 3, 2016 /PRNewswire/ -- China's rail transit industry has boomed during the 12th Five-Year Plan period (2011-2015) with railway fixed-asset investment amounting to RMB3.58 trillion, a 47.3% surge over the 11th Five-Year Plan period. The country's railway mileage expanded from 91,200km in 2010 to 121,000km (including 19,000km high-speed railway) in 2015. Meanwhile, urban rail transit construction has been in full swing, with 111 urban rail transit lines (a total length of 3,286km) in 25 Chinese cities built and put into service by the end of 2015. All these have fueled the rapid development of rail transit vehicle industry. In 2015, operational urban rail transit vehicles totaled 19,941 units and 48,165 standardized units, a 15.3% gain for each; high-speed CRHs (electric multiple units) were 21,000 units (cars) with CRH ownership density standing at 1.1 car/km or so, a marked growth compared with 0.75 in 2013. A rise in operational rail transit vehicles, accordingly, stimulates the purchase of rail transit vehicle air-conditioners. RMB5.389 billion was spent on buying rail transit vehicle air-conditioners in 2015, representing an increase of 5.6% from RMB5.105 billion in 2014.According to the Medium- and Long-term Railway Network Plan issued by the State Council, China will invest no less than RMB2.8 trillion to build over 23,000km new railways during 2016-2020, upsizing railway network to 150,000km (30,000km high-speed railway) and covering more than 80% of large cities by 2020. Moreover, major cities scales up their investment in urban rail transit, adding an estimated traffic mileage of 900km annually during 2016-2020, twice the new ones in 2015, thus contributing an upsurge in rail transit vehicles delivered to newly-opened lines. As existing lines find an increasing frequency of departures, urban rail transit vehicle industry chain is bound to enjoy a period of explosive growth over the next couple of years.