Chengdu has an extensive and rapidly expanding subway system known as the Chengdu Metro, which serves as a vital component of the city's modern transportation network. Since opening its first line in 2010, the system has grown into one of the largest and most efficient in the world, currently operating 17 subway lines and one light rail line that cover over 721 kilometers. The network provides convenient access to major landmarks, such as the Chengdu Research Base of Giant Panda Breeding via Line 3 and Shuangliu International Airport via Line 10, and it handles approximately 6 to 8 million trips daily. Known for being clean, technologically advanced, and affordable, the system features bilingual signage in English and Chinese, automated lines like Line 9, and easy payment options through mobile apps like Alipay or WeChat, making it the preferred way for both locals and tourists to navigate the metropolitan area.