Core Viewpoint - The article highlights the critical role of the Tianjin Underground Diameter Line in ensuring safe and efficient train operations during the Spring Festival travel rush, emphasizing the dedication of the maintenance team working under challenging conditions to perform essential inspections and repairs [3][4][5]. Group 1: Maintenance Operations - The maintenance team conducts inspections on key electrical equipment, including the contact network and distribution boxes, to ensure the safety of train operations [4]. - The team averages six night-time maintenance sessions per week, walking approximately 12,000 steps during each operation, which involves a round trip of about 8 kilometers [4]. - The team utilizes drones for inspections to cover blind spots and enhance the accuracy of their checks, identifying issues such as loose bolts that require immediate attention [5]. Group 2: Working Conditions - The maintenance work occurs in a cold, dark environment, with temperatures in the tunnel being particularly low due to lack of sunlight, making the conditions challenging for the workers [3][6]. - The team members are equipped with minimal protective gear, such as thin insulating gloves, to perform precise tasks while ensuring the reliability of the power supply [4][5]. - The maintenance operations are conducted during the early hours, with the team working through the night to complete inspections and repairs before the morning rush [6]. Group 3: Achievements - The maintenance team successfully completed inspections of 6.2 kilometers of contact network and 9.39 kilometers of cables, addressing multiple safety hazards during their night shift [5][6]. - The operations are crucial for maintaining the "lifeline" of power supply during the Spring Festival, ensuring a safe return journey for travelers [6].

Core Viewpoint - The Spring Festival travel rush in 2026 has begun, highlighting the increased pressure on transportation operation guarantees in key areas, with a focus on "Eight Stations and Two Airports" and other critical locations for power supply assurance [1] Group 1: Transportation Hub Power Supply - State Grid Beijing Electric Power Company has developed a special power supply guarantee plan for transportation hubs during the Spring Festival, establishing a dedicated service mechanism for each hub to ensure safe and stable operation of electrical facilities [1] - Beijing Tongzhou Station, located in the city's sub-center, is operational for its first Spring Festival, with staff conducting safety checks on electrical equipment [1] - The integration of automated detection systems with manual inspections at transportation hubs enhances the reliability of power supply management [1] Group 2: Monitoring and Emergency Response - In Fengtai District, which includes major railway hubs like Beijing South Station, the power supply company employs smart monitoring systems for 24/7 oversight of electrical loads, ensuring rapid response to any anomalies [4] - Beijing Chaoyang Station, a key high-speed rail hub, has implemented detailed power supply checks for new facilities as part of its fifth anniversary operational readiness [4] Group 3: Airport Power Supply Assurance - Power supply companies at Beijing Daxing and Capital International Airports have formed specialized teams to conduct thorough inspections of power supply stations and charging facilities, ensuring safety and reliability for travelers [5] - The comprehensive inspection efforts have been completed for the "Eight Stations and Two Airports," with sufficient resources allocated to support safe and smooth travel during the Spring Festival [5]