大会战收官，达州交通建设步履不停，瞄准交通运输"常态化提质提升"，一场交通"升级战"接续启 动。 建设升级 项目热度不减，路网持续优化 连日来，初冬的阳光洒在镇广高速公路达州段崭新的沥青路上，工人们忙着画标线、装路牌。这条 建设了3年多的高速公路即将通车，届时达州将迎来又一条贯通南北的"大动脉"。 距离该路段不远的通川区双龙镇，朱家湾大桥刚刚实现双幅贯通。它不仅是达州绕城高速公路西段 的控制性工程，更是建材运输的关键节点，通车后大大提升该条高速公路的运输效率。 2022年到2024年，达州打响"交通建设三年大会战"，公路、铁路、水运、航空全面发力，三年完成 投资852.3亿元、总量位居全省第二。 截至10月底，达州已完成年度交通基建投资196.2亿元，占省下达目标的87.7%，继续保持全省前 列。目前，达州正加紧谋划项目，冲刺高速公路"千亿工程"——在建和待建高速公路总投资突破1000亿 元。 运力升级 人更便于行，货更畅其流 近期，达州、南充、广安三市交通部门忙着共同推进城宣大邻、南大两条高速公路的前期工 作。"三年大会战结束了，但我们抓项目的劲头一点没松。"达州市交通运输局相关负责人说。 这两条高速公路， ...

Group 1 - The project spans approximately 131.3 kilometers, with 86.3 kilometers located in Panzhihua and 45 kilometers in Liangshan Prefecture, featuring a dual four-lane highway standard and a design speed of 80 km/h [2] - The project includes 67 bridges, 20 tunnels, and 10 interchanges, with a bridge-tunnel ratio of about 80% [2] - The construction of the Gesala Tunnel, which will be approximately 12 kilometers long, is notable as it will become the world's highest elevation difference highway tunnel upon completion [6] Group 2 - The Tongde Tunnel, measuring about 14.5 kilometers, is set to become the world's longest single-slope highway tunnel [6] - The Jinsha River Grand Bridge will be the domestic highway cable-stayed bridge with the largest width variation in the same category [6] - Once completed, the travel time from Panzhihua city to Yan County will be reduced from 5 hours to approximately 2 hours, enhancing connectivity with four major regional traffic arteries [6]

Core Insights - The second phase of the Dongguan Wan Tai Road upgrade project, specifically the Ke Yuan Tunnel, has been publicly announced for bidding, with construction expected to start by the end of November 2025 [1][2] - The total investment for the second phase is approximately 2.84 billion yuan, and the project has received approval from the Dongguan Development and Reform Bureau [1][2] - The overall upgrade project is planned to be executed in four phases, with the first phase already completed and operational [3] Project Details - The Ke Yuan Tunnel project will begin approximately 300 meters north of the intersection of Wan Road and Wan Sui Road, extending southward and passing under several roads before crossing the Dongguan Waterway with a submerged tunnel [2] - The total length of the main tunnel is 2,284 meters, and the project includes the construction of three pairs of connecting ramps to surface roads [2] - The project is divided into two contract sections, each with a planned duration of 1,460 calendar days, aiming for completion by the end of November 2029 [2] Project Phases - The first phase of the Wan Tai Road upgrade, from the Jinggang'ao Expressway to Xinji Road, was completed in 2023 with a total investment of 744 million yuan [3] - The third phase, from Ke Yuan Road to Xinji Road, is still in the investigation stage and has not yet been approved [3] - The fourth phase, from Wan Road to the North Ring Road, is currently in the planning reserve stage [3]

Group 1 - The core project involves the design of road repair and maintenance for 109.469 kilometers of national and provincial roads in Tai'an, with a contract value of 5.791 million yuan [1][5]. - The project is approved by the Tai'an Highway Development Center and is fully funded by state-owned funds, with a 100% contribution ratio [5]. - The winning company, Shandong Taishan Transportation Planning and Design Consulting Co., Ltd., is a state-owned enterprise under the Tai'an Transportation Development Investment Group, specializing in transportation engineering planning, consulting, and design [5][6]. Group 2 - The project has a construction period of 40 calendar days [1][4]. - Shandong Taishan Transportation Planning and Design Consulting Co., Ltd. was established in 2002 and has obtained both Class B and Class A design qualifications in the transportation sector [5][6]. - The company is gradually expanding its services into municipal and architectural sectors, indicating growth and diversification in its business operations [5].