Core Viewpoint - The Beijing Subway Line 1 branch line has commenced connection renovation, with temporary station closures at Gucheng and Babao Mountain stations expected to last until the end of May 2026 [1][3]. Group 1: Renovation Details - The renovation aims to connect the new branch line with the existing Line 1, with the connection point located east of the Bajiao Amusement Park station [3]. - The construction will involve the removal of existing structural walls, relocation of communication signals, and laying of connecting tracks, with a total planned construction period of approximately 3.5 months from February 15 to May 30, 2026 [5]. - During the renovation, the operational segment of Line 1 will be temporarily adjusted to run from Yuyuan Road Station to Universal Resort Station, with trains reversing at Yuyuan Road Station [3][9]. Group 2: Transportation Adjustments - A new bus connection line has been established to facilitate transportation during the subway station closures, covering key areas and stations along the Line 1 route [12]. - The bus service will operate with increased capacity during peak hours, with intervals of 3 to 4 minutes on weekdays [12]. - Additional non-motorized vehicle parking spaces have been created, with approximately 3,000 new spots added to accommodate increased demand during the subway closures [14][16]. Group 3: Passenger Guidance - Passengers are advised to plan their travel routes in advance and utilize public transportation options, with specific bus routes suggested for those traveling to Babao Mountain and Gucheng [13]. - Enhanced signage and information updates have been implemented across 32 stations to assist passengers during the transition [5].

Core Points - The Beijing Transportation Commission and the Major Projects Office announced that the Guocheng Station and Babao Mountain Station on Line 1 will temporarily close from February 15, 2026, to facilitate the construction of the Line 1 branch, with operations expected to resume by the end of May 2026 [1] - The Line 1 branch is crucial for serving areas like Shijingshan and Fengtai and is currently in full construction, with an expected opening condition by June 2027 [1] - The connection point for the Line 1 branch to the main Line 1 is located east of the Bajiao Amusement Park Station, which will allow for seamless operations once construction is completed [1] Construction Details - The renovation will involve dismantling existing side walls of the Line 1 section, relocating communication, signal, electromechanical, and power cables, and laying new tracks [2] - To minimize disruption to Line 1 operations, the Major Projects Office and the Transportation Commission have conducted extensive research and consultations with experts, resulting in a detailed construction plan with a total duration of approximately 3.5 months, from February 15 to May 30, 2026 [2] - During the construction period, trains will only operate to the Yuyuan Road Station for turnaround, as Babao Mountain Station lacks the facilities for this [2]

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]