[关键词]
[摘要]
截至2021年底,中国大陆地区共50个城市开通城轨交通运营线路9192.62km,2021年当年共新增运营城市5个,新增线路长度1222.92km,新增线路涉及35座城市,62条(段)线路,新投运线路条(段)数及所涉及城市数均为历史新高。
[Key word]
[Abstract]
.By the end of 2021,there were 9192.62km urban rail transit in 50 cities put into operation. In 2021, 5 new cities were added, and the total length of new lines was 1222.92km. The new line3 involved 35 cities and 62 lines(section).The number of new routes and the number of cities involved were all record highs.
[中图分类号]
[基金项目]
