德里地铁正在改造旧的蓝线列车, 以提高安全性和舒适度. Delhi Metro refurbishing older Blue Line trains to improve safety and comfort.

德里地铁正在改造旧的蓝线列车, 以提高安全性和舒适度. Delhi Metro is refurbishing older Blue Line trains to improve safety and comfort. 计划于2022年开始,已经更新了31列火车,2027年前还将完成22列. The program, which started in 2022, has already updated 31 trains and plans to finish 22 more by 2027. 升级包括新的消防系统,更好的公告和充电端口. Upgrades include new fire systems, better announcements, and charging ports.