Core Points - The Beijing Subway Line 8's Dahongmen Station officially opened on November 8, enabling bidirectional transfer with Line 10, marking the full connectivity of this north-south "underground central axis" line [1][2] Group 1: Infrastructure and Connectivity - Beijing Subway Line 8 is a key line in the city's rail transit network, stretching from Zhuxinzhuang Station in Changping District to Yinhai Station in Daxing District, with a total of 35 stations [2] - The line passes through significant areas such as Olympic Park, Shichahai, Qianmen, and Tianqiao, aligning closely with the city's central axis [2] - The opening of Dahongmen Station resolves the operational bottleneck of transferring to Line 10, providing efficient travel options for passengers between central Beijing and southern districts like Fengtai and Daxing [2] Group 2: Service Enhancements - The station features clear directional signage, a well-organized ticket gate layout, and comprehensive customer service and accessibility facilities, indicating an upgrade in operational services [4] - Initial operations include a "Light Up New Coordinates" event, offering exclusive service desks and free postcards as souvenirs for passengers [4] - Currently, three additional subway lines (Line 17 mid-section, Line 6 south extension, and Line 18) are undergoing closed-loop simulation operations, with plans to exceed 900 kilometers of operational rail transit upon their opening [4]

Core Points - Beijing's subway line 18 officially began trial operations on October 25, marking the completion of the "running map" phase for three new subway lines planned for this year [1] - The total length of the three new subway lines is approximately 30.1 kilometers, contributing to a total operational subway mileage in Beijing exceeding 900 kilometers [1] Summary by Sections Line 18 - Line 18, running from Malianwa to Tiantongyuan East, is a key east-west line in northern Beijing, spanning approximately 19.8 kilometers with 11 stations, including 4 transfer stations [1] - This line is expected to support the development of the northern region of Beijing [1] Line 6 South Extension - The south extension of Line 6 is about 2.1 kilometers long, starting from Lucheng Station and extending to Luyang Station, playing a crucial role in the urban sub-center's transit network [1] Line 17 - Line 17 serves as a major north-south transit line, connecting residential areas such as Tiantongyuan, Wangjing West, and others [1] - The middle section of Line 17, approximately 8.2 kilometers long with 4 stations, will complete the line's connectivity, following the opening of its southern and northern segments in 2021 and 2023, respectively [1]

Core Points - Beijing's subway system is set to achieve initial operational conditions for three new lines: Line 17, the southern extension of Line 6, and Line 18, totaling approximately 30.1 kilometers [1][2] - The opening of these lines is anticipated within the year, with all three currently undergoing a phase known as "running the map," which simulates operational conditions [2] - The total operational mileage of Beijing's subway will exceed 900 kilometers upon the completion of these lines [1] Summary by Sections Line 18 - Line 18 will connect from Tiantongyuan East Station in Changping District to Maliandao Station in Haidian District, featuring 11 stations and multiple transfer points to other lines [11] - The line is expected to enhance transportation convenience for residents in key functional areas such as the "Huitian area" and Haidian [11] - The construction of the line's stations, including the Up Land Software Park and Maliandao Station, is progressing well, with an aim for them to open within the year [11] Line 17 - Line 17 runs from the Future Science City North Station in Changping to Jiahui Lake Station in Yizhuang, covering a total length of 49.7 kilometers with 21 stations [13] - The middle section, approximately 7.2 kilometers long, between Tiyuan Station and Gongren Sports Center Station, is planned to open this year [13][15] - Once operational, the line will provide direct access to key areas such as Future Science City, Wangjing, CBD, and Yizhuang, reducing travel time significantly [15] Line 6 - Line 6 is a major transit artery in Beijing, spanning approximately 53.2 kilometers with 35 stations, connecting various important districts [15][17] - The southern extension of Line 6 will add about 2.1 kilometers, with plans for further extensions [17] - This line plays a crucial role in enhancing connectivity across the city, facilitating easier access to business and administrative areas [15]

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]

Core Points - Beijing's subway construction plan for this year includes the initial operation readiness of Line 17 and two segments of Line 6, as well as the expansion of Line 13 [1] - The recent progress report indicates that Line 17, Line 6 south extension, and Line 18 have entered a three-month trial operation phase, which is essential for testing and system calibration [2] - Line 17 will connect key areas such as Future Science City, Wangjing, CBD, and Yizhuang, with a travel time of 66 minutes from Jiahu Lake to Future Science City North Station [4] Group 1 - Line 17 spans 49.7 kilometers with 21 stations, including 11 transfer stations, and the section planned for this year is approximately 7.2 kilometers long [2][4] - The south extension of Line 6 will add 2.1 kilometers with one new station, Dongxiaoying South Station, and has the potential for further extension [5][7] - Line 18 is part of the previously split Line 13, connecting key functional areas and enhancing transportation convenience for residents [8][10] Group 2 - The trial operation phase involves comprehensive testing of vehicles, power supply, signaling, and communication systems, which is crucial for ensuring operational readiness [2] - The opening of Line 17's middle section may face delays due to construction sequencing, particularly at Guanqumenwai Station, which is likely to be skipped during initial operations [4]

Core Viewpoint - The Beijing Metro Line 18, derived from the ongoing expansion of Line 13, is crucial for connecting northern Haidian and the Changping "Huitian area," and it has begun a trial operation phase lasting at least three months to prepare for its expected operational launch by the end of the year [1][3]. Group 1: Project Overview - The Line 18 connects major residential areas in northern Haidian, the Zhongguancun Software Park, and the Changping "Huitian area," serving as a key east-west route in northern Beijing [1]. - The trial operation phase includes comprehensive testing and calibration of vehicles, power supply, signaling, and communication systems, ensuring all components work seamlessly together [1][3]. Group 2: Technical Specifications - The trial operation utilizes the lightest metro train in Beijing, a 4-carriage, 2-drag, 6B configuration, with a maximum passenger capacity of 2,016 and a top speed of 80 km/h [3]. - The new trains are approximately 12 tons lighter than those on the existing Line 13, significantly reducing energy consumption [3]. - Enhanced passenger comfort is provided with a 10 cm higher ceiling in the carriages compared to the current Line 13 trains, accommodating taller individuals better [3]. Group 3: Additional Features - The new trains are equipped with carbon fiber electric heating seats, offering increased warmth and comfort during winter rides [5].

Core Viewpoint - Beijing's Metro Line 18 has officially commenced empty test operations, with plans to open by the end of the year, enhancing connectivity in the northern urban areas of Haidian and Changping [1][4]. Group 1: Line Specifications - Metro Line 18 spans a total length of 20.8 kilometers, serving as a key east-west route in northern Beijing [3]. - The line is designed to improve commuting efficiency and has been renamed from a part of the Line 13 expansion project to enhance its recognition [3]. Group 2: Technical Features - The newly deployed trains are the lightest in Beijing's metro system, featuring a maximum capacity of 2016 passengers and a top speed of 80 km/h, which is approximately 12 tons lighter than existing Line 13 trains, significantly reducing energy consumption [3]. - The trains are equipped with advanced passenger comfort and safety features, including a 100 mm higher ceiling for spaciousness, improved air conditioning for uniform airflow, and the first use of carbon fiber electric heating seats in China [3]. Group 3: Operational Readiness - The empty test operations mark a critical transition from construction to passenger service, with ongoing safety assessments and preparations for initial operations [4]. - Once operational, Line 18 will enhance connections between major residential areas in northern Haidian and employment hubs like Zhongguancun Software Park, significantly reducing travel times and improving public transport service levels [4].

Core Points - By the end of 2024, Beijing will have 29 operational subway lines, totaling 879 kilometers in length and featuring 522 stations, including 98 transfer stations [1] - The first subway line, Line 1, was opened on October 1, 1969, and the network has expanded significantly over the past 55 years [1][2] - The 3rd and 12th subway lines are set to open on December 15, 2024, marking the addition of the 28th and 29th lines to the network [1][30][31] - The 18th line, a result of the expansion of Line 13, is expected to open by the end of this year, bringing the total to 30 lines [1] Summary by Line - **Line 1**: Opened on October 1, 1969, initially not open to the public until January 15, 1971, and officially operational on September 15, 1981 [2] - **Line 2**: Opened on September 20, 1984, as the first circular subway line in China [3] - **Line 13**: Opened its western section on September 28, 2002, and the eastern section on January 28, 2003 [4] - **Line 5**: Fully operational since October 7, 2007, serving as a major north-south transit line [6] - **Line 10**: Opened on July 19, 2008, and is currently the busiest line in the system [7] - **Capital Airport Line**: Opened on July 19, 2008, connecting the city to the international airport [9] - **Line 8**: Opened to the public on October 9, 2008, after initially serving the Olympics [10] - **Line 4**: Opened on September 28, 2009, and is operated by the MTR Corporation [11] - **Daxing Line**: Opened on December 30, 2010, and connects with Line 4 [12] - **Yizhuang Line**: Opened on December 30, 2010, with further extensions in subsequent years [13] - **Fangshan Line**: Opened its first section on December 30, 2010, with additional sections opened in later years [14] - **Changping Line**: Opened on December 30, 2010, and has seen multiple extensions since [15] - **Line 15**: Opened its first section on December 30, 2010, with further expansions in 2011 and 2014 [16] - **Line 9**: Opened its southern section on December 31, 2011, with further extensions in subsequent years [17] - **Line 6**: Opened on December 30, 2012, with additional sections opened in 2014 and 2018 [18] - **Line 14**: Opened its western section on May 5, 2013, with further expansions in the following years [19] - **Line 7**: Opened on December 28, 2014, and has been extended to serve new areas [20] - **Line 16**: Opened its northern section on December 31, 2016, with ongoing expansions planned [21] - **Xijiao Line**: Opened on December 30, 2017, connecting various parks and attractions [22] - **S1 Line**: Opened its first section on December 30, 2017, and completed the remaining section in 2021 [23] - **Yanqing Line**: Opened on December 30, 2017, as the first fully automated subway line in China [24] - **Daxing Airport Line**: Opened on September 26, 2019, serving the new airport [25] - **Yizhuang T1 Line**: Opened on December 31, 2020, with separate ticketing [26] - **Line 17**: Opened its southern section on December 31, 2021, with plans for full connectivity by 2025 [27] - **Line 19**: Opened its first section on December 31, 2021, with additional stations opened in July 2022 [28] - **Line 11**: Opened its western section on December 31, 2021, with further sections planned for December 2023 [29] - **Line 3**: Scheduled to open on December 15, 2024, completing its first phase [30] - **Line 12**: Also set to open on December 15, 2024, primarily running along the North Third Ring Road [31]

Core Points - The Beijing Subway Line 13 expansion project has officially named the 13A line as Line 18 [1] - Line 17 will connect with Line 18 at Tiantongyuan East Station, which is scheduled to open in December 2025 [1] - The completion of the cold and hot sliding tests at the Xiaoxin Zhuang parking lot indicates that Lines 13 and 18 will form an "X" shaped route, enhancing travel convenience for residents in Haidian, Changping, and Chaoyang districts [1] - The integration of Lines 1 to 19 will be fully completed with this development [1]

Core Viewpoint - The Beijing subway system is set to expand with the introduction of Line 18, which is part of the 13-line capacity enhancement project, enhancing connectivity in northern Beijing and improving public transportation for residents in multiple districts [1][5][6]. Group 1: Project Overview - The 13A line within the capacity enhancement project has been officially named Line 18, which will connect with Line 17 at Tiantongyuan East Station, scheduled to open in December 2025 [1][3]. - The 13-18 northern section connection line has successfully completed cold and hot sliding tests, validating the compatibility and operational stability of the related systems, paving the way for future train debugging and full line operation [5][6]. - The 13-line capacity enhancement project is the largest existing line renovation project in China, involving the construction of 29 kilometers of new track and 18 new stations, alongside the renovation of 5 existing stations [5][6]. Group 2: Connectivity and Impact - The completion of the 13-line enhancement will significantly increase the rail network density in northern Beijing, linking major residential areas and improving transfer relationships between existing lines [6][8]. - The project aims to enhance the commuting experience for residents in Haidian and Changping districts by connecting with other lines such as Line 8 and Line 17, thus facilitating smoother transfers [8]. - The total length of the new lines will reach 63.6 kilometers with 33 stations, ensuring interconnectivity and future operational flexibility [5][6].