轨交运营里程将突破900公里

Core Viewpoint - The new subway lines in Beijing, including the 17th, 18th, and the southern extension of the 6th line, are set to enhance the city's transportation network, improve service quality, and support urban development, with a total length of approximately 30.1 kilometers to be opened by the end of the year [7][12]. Group 1: Line Details - The 17th line's middle section, spanning about 8.2 kilometers, connects key areas such as Future Science City and CBD, significantly reducing travel time from the southern end to the northern end to 66 minutes [7][12]. - The 18th line, approximately 19.8 kilometers long, serves as a major east-west route for northern districts, featuring 11 stations, including four transfer stations, and aims to alleviate commuting pressure in large residential areas [8][12]. - The southern extension of the 6th line extends about 2.1 kilometers to Luoyang Station, enhancing connectivity between the urban sub-center and the main city [8][12]. Group 2: Design and Construction Features - The 18th line features a unique design theme of "light and shadow tunnel," focusing on an open and clear transfer space with an 18-meter span at the largest column-free station in Beijing [10][11]. - The 17th line incorporates regional cultural elements in its design, with art pieces like "Phoenix Sounding the East" by Han Meilin at Dongdachang Station, reflecting Beijing's international image [9][10]. - The 6th line's Luoyang Station utilizes a "bare concrete" design, which saves materials and enhances environmental performance while maintaining aesthetic appeal [10][11]. Group 3: Technological Innovations - The 18th line is recognized as a smart construction demonstration line, employing advanced monitoring systems and flexible direct current traction supply technology, which can save 5%-10% energy compared to traditional systems [11][12]. - The construction of these lines faced challenges such as complex geological conditions and the need for integration with existing infrastructure, leading to innovative engineering solutions [11][12]. - The new lines are expected to improve the overall efficiency and safety of urban transportation, contributing to the high-quality development of the capital [12].