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]

项目两个合同段的计划工期均为1460日历天，计划开工日期为2025年11月底、工程竣工验收日期为2029 年11月底。 值得一提的是，莞太路升级改造二期（可园隧道）工程取消了万江大桥的拆除计划，万江大桥将被保留 并改造；运河桥将被拆除重建，莞城市民广场边上的天桥也要拆除重建；博厦高架桥将被拆除。另外， 还将新建3对衔接地面的匝道。 据了解，莞太路升级改造工程计划分四期推进。其中，一期工程（京港澳高速-新基路）已于2023年完 工并投用，总投资7.44亿元。南都N视频记者从东莞市交通运输局获悉，二期工程（可园隧道）目前已 经完成立项、即将进入施工阶段，三期工程（可园路-新基路）尚未立项、仍处于勘察阶段，四期工程 （万道路-环城北路）尚在规划预留中。 继莞太路升级改造三期（可园路至新基路段）工程启动勘察后，二期（可园隧道）工程于日前对外发布 招标公告。目前，该工程已完成工程可行性研究报告的批复批准建设，计划于2025年11月底开工。其 中，核心工程"过江隧道"将实现现状万江大桥南侧整幅沉管隧道下穿东莞水道，进一步打通东西两岸交 通脉络。 9月18日，广东省公共资源交易平台对外发布莞太路升级改造二期（可园隧道）工程 ...

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].