此外，成都轨道交通10号线三期工程采用时速100公里的市域A型车，车站设行李直梯和快速安检通道 提升效率，未来将有效缓解景区及商圈交通压力，激活文旅经济圈发展动能。 "从2020年开工至2025年通车，这条凝聚着中国中铁人智慧与汗水的城市轨道，不仅是一项交通工程， 更是一份民生答卷。"上述负责人表示，中国中铁将进一步融入成渝地区双城经济圈建设，以优质工程 持续助力经济社会高质量发展。 来源：中国青年报客户端 中国青年报客户端讯（中青报·中青网记者 张真齐）9月17日，随着首列列车平稳驶出，由中铁城投、中 铁北京局参建的成都轨道交通10号线三期工程正式开通初期运营。这条全长5.87公里的地下线，串联红 牌楼、武侯祠、锦里等地标，构建起中心城区与双流机场的快速通道。 中铁城投项目相关负责人介绍，在施工过程中，工程团队破解了核心区的多项技术难题：穿越武侯祠文 物区时，采用BIM建模与自动化监测，将沉降控制在0.5毫米内；针对533米长的220KV高压电力隧道， 研发原位悬吊技术，确保每延米7.5吨的管线纹丝不动；面对复杂地层，通过盾构参数优化实现月掘进 290米，保障安全高效施工。 ...

Core Insights - Chengdu's urban rail transit network has officially surpassed 700 kilometers, joining the "700+" city club alongside Guangzhou by the end of this year [1][2] - The opening of the second phase of Line 17 and the third phase of Line 10 on September 17 contributed to this milestone, with the total operational length now at 700 kilometers [1] - As of August this year, Chengdu's rail transit operational length was 634.2 kilometers, with the new lines adding a total of 30.67 kilometers [1] Group 1 - Chengdu's rail transit network is set to continue expanding, with plans to open four additional lines totaling 87.5 kilometers by the end of this year [1] - The current rankings for urban rail transit operational lengths show Beijing at 879 kilometers, Shanghai at 871 kilometers, and Guangzhou at 743.8 kilometers, with Chengdu and Guangzhou both reaching the "700+" milestone this year [1] - The rapid growth of Chengdu's rail transit has been notable, with a jump of over 200 kilometers in 2020, surpassing 500 kilometers, and further growth to over 600 kilometers in 2023 [2] Group 2 - The fourth phase of Chengdu's rail transit construction plan, approved in 2019, is set to conclude this year, including multiple new lines [2] - The fifth phase of construction planning is expected to be approved in 2024, with several projects already in the preliminary stages [2] - The Chengdu Rail Transit Group has initiated preliminary work on the first phase of Line 12, which will span 33.83 kilometers and include 27 stations [2]

Core Viewpoint - The urban rail transit ranking is expected to change this year, with Chengdu's rail transit network set to exceed 700 kilometers due to multiple new line openings, enhancing connectivity and supporting economic development [1][3][4]. Summary by Sections Chengdu's Rail Transit Expansion - Chengdu's rail transit group announced the full launch of trial operations for several new lines, marking a significant step towards initial operations [1]. - The total operational mileage of Chengdu's rail transit is projected to surpass 700 kilometers this year, with the addition of four new lines totaling 87.5 kilometers [3][4]. Comparison with Other Cities - Other major cities like Guangzhou, Chongqing, and Nanjing are also set to open new lines, potentially altering the rankings in urban rail transit mileage [6][8]. - Guangzhou is expected to maintain its third position with a projected operational mileage of 700 kilometers after the opening of new lines [6]. Future Projections - The fifth phase of Chengdu's rail transit planning has been approved for 2024, with new lines expected to be announced soon [4]. - The number of cities with operational rail transit exceeding 500 kilometers will increase to nine, with Nanjing expected to surpass Chongqing in the rankings [6][8]. Competitive Landscape - The competition between cities like Xi'an and Zhengzhou is intensifying, with both cities aiming to improve their rankings through new line openings [8].

Core Insights - The urban rail transit landscape in China is set to change significantly, with Chengdu's rail network expected to exceed 700 kilometers in 2023, marking a substantial increase in operational mileage [1][2][4] Group 1: Chengdu's Rail Expansion - Chengdu's rail transit group announced the commencement of trial operations for multiple new lines, including the 10th, 17th, and 30th lines, contributing to a total operational mileage expected to surpass 700 kilometers this year [1][2] - The Chengdu government aims to strengthen transportation infrastructure, with plans to open four new lines totaling 87.5 kilometers in length [2] - The completion of these new lines will enhance connectivity between various districts and support economic development in the region [3] Group 2: National Rail Transit Rankings - The number of cities in China with urban rail transit exceeding 500 kilometers will increase to nine, with Chengdu and Guangzhou both set to surpass this milestone [4][6] - Guangzhou's rail network is projected to reach 693.9 kilometers in 2024, maintaining its position as the third-largest rail network in the country [4][5] - The competition among cities like Nanjing, Chongqing, Xi'an, and Zhengzhou is intensifying, with Nanjing expected to surpass Chongqing in operational mileage, moving to the eighth position [5][6]

Group 1 - Chengdu has issued its first high-temperature orange warning signal for 2025, marking the official start of the high-temperature period [1] - China Railway Construction has implemented effective measures to ensure construction safety and progress during extreme heat, including adjusting work shifts and prohibiting work when temperatures exceed 38°C [1][2] - The construction site is equipped with clean drinking water and cooling beverages, along with medical supplies to ensure the health of workers [1] Group 2 - Significant progress has been made in Chengdu's rail construction, including the successful electrification and transfer of the Chengdu Metro Line 13 Phase I, and the completion of major structures at various stations [2] - The labor unions at China Railway Construction will continue to enhance heat prevention measures and provide support to frontline workers to ensure their health and safety while advancing project construction [2]