China currently has the largest number of active cellphones of any country in the world, with over 1 billion users as of May 2012. It also has the world's largest number of internet and broadband users. By December 2010, China had around 457 million internet users, an increase of 19% over the previous year, and by the end of 2011 the number of internet users had exceeded 500 million. According to the China Internet Network Information Center (CNNIC), China's average internet connection speed in 2011 was 100.9 kbit/s, less than half of the global average of 212.5 kbit/s.
China Telecom and China Unicom, the country's two largest broadband providers, accounted for 20% of global broadband subscribers, whereas the world's ten largest broadband service providers combined accounted for 39% of the world's broadband customers. China Telecom alone serves 55 million broadband subscribers, while China Unicom serves more than 40 million. The massive rise in internet use in China continues to fuel rapid broadband growth, whereas the world's other major broadband ISPs operate in the mature markets of the developed world, with high levels of broadband penetration and rapidly slowing subscriber growth. Several Chinese telecommunications companies, most notably Huawei and ZTE, have become highly profitable in overseas markets, but have also been accused of spying for the Chinese military.
Transport Main article: Transport in China There are over 85,000 km (52,800 mi) of divided expressways in China. A high-speed maglev train leaving Pudong International Airport, Shanghai, in 2006.Since the late 1990s, China's national road network has been significantly expanded through the creation of a network of expressways, known as the National Trunk Highway System (NTHS). By the end of 2011, China's expressways had reached a total length of 85,000 km (53,000 mi), second only to the highway network of the United States. Private car ownership is growing rapidly in China, which surpassed the United States as the world's largest automobile market in 2009, with total car sales of over 13.6 million. Analysts predict that annual car sales in China may rise as high as 40 million by 2020. A side-effect of the rapid growth of China's road network has been a significant rise in traffic accidents, mostly caused by poorly enforced traffic laws – in 2011 alone, around 62,000 Chinese died in road accidents, and efforts to improve traffic safety have had limited success.
China also possesses the world's longest high-speed rail network, with over 9,676 km (6,012 mi) of service routes. Of these, 3,515 km (2,184 mi) serve trains with top speeds of 300 km/h (190 mph). In 2011, China produced its first high-speed trains built entirely without foreign assistance. China intends to operate approximately 16,000 km (9,900 mi) of high-speed rail lines by 2020. Rapid transit systems are also rapidly developing in China's major cities, in the form of networks of underground or light rail systems. China is additionally developing its own satellite navigation system, dubbed Beidou, which began offering commercial navigation services across Asia in 2012, and is planned to offer global coverage by 2020.
As of 2012, China is the world's largest constructor of new airports, and the Chinese government has begun a US$250 billion five-year project to expand and modernize domestic air travel. However, 80% of China's airspace remains restricted for military use; long-distance transportation remains dominated by railways and charter bus systems. Railways are the vital carrier in China; they are monopolized by the state, and divided into various railway bureaux in different regions. Due to huge demand, the system is regularly subject to overcrowding, particularly during holiday seasons, such as Chunyun during the Chinese New Year. The Chinese rail network carried an estimated 1.68 billion total passengers in 2010 alone. In urban areas, bicycles remain an extremely common mode of transport, despite the increasing prevalence of automobiles – as of 2012, there are approximately 470 million bicycles in China.
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