截至2020年末，中国内地共45座城市开通城轨交通运营线路7?978.19 km，2020年当年新增运营线路长度1?241.99 km；“十三五”5年间，中国内地城轨交通新增运营线路长度总计达4?360 km，年均新开运营线路872?km。2020年，8座城市的新一轮建设规划(或规划方案调整)获批公示，获批项目涉及新增城轨交通线路长度共587.95 km，新增投资额共4?709.86亿元；“十三五”5年间，由国家发展改革委批复已获公示的新一轮城轨交通建设规划或建设规划调整方案中涉及新增规划线路长度总计4?001.74 km，新增计划投资额总计29?781.91亿元。
By the end of 2020, 45 cities in Chinese mainland have opened 7,978.19 km of urban rail transit lines, and 1,241.99 km of new lines were added in 2020. During the five years of the 13th Five-Year Plan period, the new operating urban transit lines in Chinese mainland have reached 4,360 km, with an annual average of 872 km of new lines being put into operation. In 2020, thanks to a new round of construction planning (or adjustment of planning scheme) of eight cities, 587.95 km of new urban rail transit lines were approved, with a total investment reaching RMB 470.986 billion Yuan. The new or adjusted urban rail transit construction plans approved by the National Development and Reform Commission during the 13th Five-Year Plan period have permitted a total of 4,001.74 km of new lines to be built with a the planned investment totaling RMB 2,9781.91 billion Yuan.