section_path: Infrastructure/Transport
section_name: Transport
paragraph_text: Transport
  
  Since the late 1990s, China's national road network has been significantly expanded through the creation of a network of national highways and expressways. In 2022, China's highways had reached a total length of 177,000 km (110,000 mi), making it the longest highway system in the world. China has the world's largest market for automobiles, having surpassed the United States in both auto sales and production. The country is the world's largest exporter of cars by number as of 2023. A side-effect of the rapid growth of China's road network has been a significant rise in traffic accidents. In urban areas, bicycles remain a common mode of transport, despite the increasing prevalence of automobiles – as of 2023, there are approximately 200 million bicycles in China.
  
  China's railways, which are operated by the state-owned China State Railway Group Company, are among the busiest in the world, handling a quarter of the world's rail traffic volume on only 6 percent of the world's tracks in 2006. As of 2023, the country had 159,000 km (98,798 mi) of railways, the second-longest network in the world. The railways strain to meet enormous demand particularly during the Chinese New Year holiday, when the world's largest annual human migration takes place. China's high-speed rail (HSR) system started construction in the early 2000s. By the end of 2023, high speed rail in China had reached 45,000 kilometers (27,962 miles) of dedicated lines alone, making it the longest HSR network in the world. Services on the Beijing–Shanghai, Beijing–Tianjin, and Chengdu–Chongqing lines reach up to 350 km/h (217 mph), making them the fastest conventional high speed railway services in the world. With an annual ridership of over 2.3 billion passengers in 2019, it is the world's busiest. The network includes the Beijing–Guangzhou high-speed railway, the single longest HSR line in the world, and the Beijing–Shanghai high-speed railway, which has three of longest railroad bridges in the world. The Shanghai maglev train, which reaches 431 km/h (268 mph), is the fastest commercial train service in the world. Since 2000, the growth of rapid transit systems in Chinese cities has accelerated. As of December 2023, 55 Chinese cities have urban mass transit systems in operation. As of 2020, China boasts the five longest metro systems in the world with the networks in Shanghai, Beijing, Guangzhou, Chengdu and Shenzhen being the largest.
  
  The civil aviation industry in China is mostly state-dominated, with the Chinese government retaining a majority stake in the majority of Chinese airlines. The top three airlines in China, which collectively made up 71% of the market in 2018, are all state-owned. Air travel has expanded rapidly in the last decades, with the number of passengers increasing from 16.6 million in 1990 to 551.2 million in 2017. China had approximately 259 airports in 2024.
  
  China has over 2,000 river and seaports, about 130 of which are open to foreign shipping. Of the fifty busiest container ports, 15 are located in China, of which the busiest is the Port of Shanghai, also the busiest port in the world. The country's inland waterways are the world's sixth-longest, and total 27,700 km (17,212 mi).