由云南交投集团投资建设的楚雄州牟定至元谋高速公路12月26日正式通车试运营，同步开通牟定东、妥 安、黑井古镇、羊旧、羊街5个收费站，牟定到元谋的车程缩短至半小时。 岳家大桥为项目的关键工程，岳家大桥左右幅钢箱梁上跨成昆铁路，桥跨布置均为50米简支钢箱梁，左 幅钢箱梁重436.23吨，右幅钢箱梁重437.53吨，双幅均采用步履式顶推。为完成顶推施工任务，项目部 制定专项施工方案，主动与中国铁路昆明局集团有限公司广通工电段、广通车务段等单位加强联系，协 同解决制约项目建设的重难点问题。施工过程中，严格卡控焊缝质量，对线型控制、应力变化、既有铁 路隧道等进行实时监测，全方位保障施工安全和质量。 据介绍，牟元高速自南向北途经云南省楚雄州牟定县、禄丰市、元谋县，起于牟定县江坡镇大地头，衔 接新楚大高速公路，止于元谋县老城乡波亨村，与G5京昆高速互通并连接地方路网。主线全长48.565公 里，桥隧比高达77.16%，全线采用双向四车道标准建设，设服务区1处、停车区1处、互通立交6处。 牟元高速全线共有8处涉铁施工。为保障施工安全有序推进，项目公司推动构建数字化管理平台，研究 编制了涉铁工程造价计算方法与造价体系，为公路涉 ...

Core Insights - A series of new transportation projects have been launched in China, enhancing connectivity and efficiency in logistics and travel, which is expected to accelerate economic and social development. Group 1: High-Speed Rail Developments - The Xi'an to Yan'an high-speed railway officially opened on December 26, marking the entry of the Shaanxi revolutionary area into the high-speed rail era, with a total length of 299 kilometers and a design speed of 350 km/h. Travel time from Xi'an North to Yan'an is reduced to 68 minutes, a 62-minute decrease compared to conventional trains [1]. - The Hangzhou to Quzhou high-speed railway also commenced operations on December 26, adding a new artery to the Yangtze River Delta intercity rapid transit network. The line is 131 kilometers long with a design speed of 350 km/h, allowing travel from Hangzhou West to Quzhou West in 73 minutes [1]. - The Wuhan to Yichang section of the Huhuo Railway opened on December 26, creating a new rapid passenger transport corridor in the Yangtze River Economic Belt. The line is 314 kilometers long with a design speed of 350 km/h, reducing travel time to 69 minutes, a 34-minute reduction from previous services [4]. Group 2: Highway Infrastructure - The Urumqi to Yili Highway was completed on December 26, significantly improving north-south transportation in Xinjiang. The travel time from Urumqi to Korla is cut from 7 hours to 3.5 hours, enhancing local mobility and logistics [5][7]. - The Yin-Chong Highway, connecting Chongqing and Shaanxi, was completed on December 25, reducing travel time from 140 minutes to approximately 40 minutes between Chongqing Chengkou and Shaanxi Ankang [8]. Group 3: Airport Developments - The Jiaxing Nanhu Airport, the first specialized air cargo hub in the Yangtze River Delta, officially commenced operations on December 26, focusing on cargo with supplementary passenger services. Initial routes include flights to Beijing Daxing and Guangzhou [12]. - The third runway at Xi'an Xianyang International Airport was successfully put into operation on December 25, making it the first airport in Northwest China to operate three runways, enhancing its capacity as a major international aviation hub [13].

Group 1 - A series of new high-speed rail and highway projects have been launched in China, enhancing transportation convenience and logistics efficiency, thereby accelerating economic development [1] - The Xi'an to Yan'an high-speed railway officially opened on the 26th, marking the entry of the Shaanxi revolutionary area into the high-speed rail era, with a total length of 299 kilometers and a design speed of 350 km/h, reducing travel time to 68 minutes [1] - The Hangzhou to Quzhou high-speed railway also commenced operations, connecting Hangzhou and Quzhou with a total length of 131 kilometers and a design speed of 350 km/h, allowing travel in as little as 73 minutes [3] Group 2 - The Wuhan to Yichang segment of the Shanghai-Chongqing-Chengdu high-speed railway opened, creating a new rapid passenger transport corridor in the Yangtze River Economic Belt, with a total length of 314 kilometers and a design speed of 350 km/h, reducing travel time to 69 minutes [5][6] - The Urumqi to Yili highway was completed after over five years of construction, significantly improving transportation between northern and southern Xinjiang, with travel time reduced from 7 hours to 3.5 hours [8] - Two highways in Yunnan, the Mouding to Yuanmou and the Yongping to Changning (Dali section), were also opened, enhancing connectivity in the region [9][12]