参考国际上较为通用的统计标准，将城市轨道交通分为地铁、轻轨和有轨电车三大类，对世界城轨交通运营现状进行统计。分析表明：截至2022年底，全球有78个国家和地区的545座城市开通了城市轨道交通系统，总里程超过41 386.12 km，其中地铁、轻轨、有轨电车分别占48.9%、9.8%和41.3%。截至2022年12月31日，中国(含港澳台)累计有61座城市开通运营轨道交通，运营里程达10 857.17 km，其中中国内地运营里程10 291.96 km。2021年，全球46个国家的157座城市地铁累计运送乘客498.66亿人次，平均负荷强度0.74万人次/(d·km)，其中中国(含港澳台)地铁年客流量为256.86亿人次。我国城市轨道交通持续稳步发展，线网规模和客流规模继续稳居全球第一。对中国内地市域(郊)铁路线路进行统计，开通运营里程为2 954.67 km，在建里程为2 826.91 km。市域(郊)铁路将为都市圈、城市群发展提供有力支持，为实现“双碳”愿景做出积极贡献，为交通强国建设奠定基础。

The article summarizes the statistics for 2022 on operation of urban rail transit systems in the world, which are classified into metro, light rail and tram systems in line with the widely accepted international standards. The statistics show that 545 cities in 78 countries or regions worldwide have hosted urban transit systems by the end of 2022, with the total length reaching 41,386.12 kilometers, among which, the metro system accounts for 48.9%, the light rail 9.8% and the tram 41.3%. Urban rail transit systems have been built and put into operation in 61 Chinese cities (including Hong Kong, Macao and Taiwan) and the total length in operation has reached 10,857.17 kilometers by the end of 2022, of which 10,291.96 km was in operation in Chinese mainland. The ridership of metro and light rail worldwide totals 49.87 billion trips in 2021, with an average of 7,400 trips per day, including 25.69 billion passengers in China. It is found that China ranks the first in the world in terms of the size and ridership of its urban rail transit system networks. According to the statistics of domestic suburban railway lines, the operating length is more than 2,954.67 km, and the length under construction is more than 2,826.91 km. Suburban railways will provide strong support for the development of metropolitan areas and city clusters, make positive contributions to the realization of the “dual carbon” vision, and lay the foundation for the construction of a transportation power.

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