北京地铁18号线开始“跑图”，年内将开通3条地铁线

Core Points - Beijing's subway system has entered the "test run" phase for three new lines, including Line 18, which is expected to enhance the city's transportation network significantly [1][5] - The completion of these lines will increase the total operational mileage of Beijing's subway to over 900 kilometers, improving network layout and transport capacity [1][5] Group 1: Line 18 Overview - Line 18 (Malianwa to Tiantongyuan East) is a key east-west line in the northern part of the city, spanning approximately 19.8 kilometers with 11 stations, including 4 transfer stations [2] - The line aims to support the development of northern areas and alleviate traffic pressure in the region, particularly for large residential areas like Tiantongyuan and Huoying [2] Group 2: Line 17 Overview - Line 17 is a major north-south line connecting various residential areas, with the middle section (about 8.2 kilometers) set to complete the line's connectivity [2] - Once fully operational, the line will allow for a 66-minute travel time from Jiayue Lake to Future Science City North, improving passenger flow management and easing surrounding traffic congestion [2] Group 3: Line 6 South Extension Overview - The south extension of Line 6 is approximately 2.1 kilometers long and is crucial for enhancing the transportation infrastructure in the city's sub-center [3] - This extension is part of the broader plan to improve public transport and promote green travel options [3] Group 4: Technological Innovations - Line 18 is notable for being the first in the country to use carbon fiber electric heating seats and features a fully standardized, intelligent, and mechanized construction approach [3] - The line also employs flexible direct current traction supply technology, marking a significant advancement in subway technology [3] Group 5: Construction and Operational Testing - The three lines will undergo a minimum of 30 days of closed-loop testing to evaluate key performance indicators such as punctuality and equipment failure rates [5] - Following successful evaluations and safety assessments, the lines will be ready for public operation, contributing to the city's public transport development [5]