●串联起塔公草原、八美墨石公园等川西旅游景点 炉康高速效果图和线路方案示意图。蜀道集团藏高公司供图 ●建成后，从康定新都桥到炉霍县的通行时间将缩短至2小时 近日，炉霍至康定新都桥高速公路（下称炉康高速）10个先期开工点在甘孜州炉霍、道孚和康定三县（市） 同步开工建设，标志着这条总投资约344.17亿元、全长186.807公里的"民生快车道"进入实质性建设阶段。项目建 成后将结束道孚县、炉霍县不通高速公路的历史，届时从康定新都桥到炉霍县的通行时间将缩短至2小时。 炉康高速是成都和成渝地区双城经济圈向大西北延伸的重要辐射线。项目位于甘孜州境内，路线起于炉霍 县，接G4217蓉昌高速，经道孚县，于道孚县八美镇与G0615马尔康至康定高速公路相交，止于康定市新都桥 镇，接入在建的G4218雅叶高速康定至新都桥段。全线采用双向四车道高速公路技术标准，设计时速80公里，建 设工期4年。 炉康高速全线平均海拔超过3500米，最高海拔3850米，线路走线与鲜水河活动性断裂带交错并行，地形地质 条件和生态环境极其复杂。面对诸多挑战，项目将创新采用新型抗震桥梁设计方法，进一步降低因地震造成的桥 墩梁板受损风险，同时坚持环保先行， ...

Core Insights - Four highway projects in Sichuan province have received project approval and are set to commence construction in the third quarter of this year, with a total length of approximately 458 kilometers and a total investment of about 947 billion yuan [1][4]. Group 1: Project Details - The Luhuo to Kangding Xinduqiao Expressway spans approximately 186 kilometers, with a total investment of about 344 billion yuan, designed for a speed of 80 km/h and featuring a dual four-lane configuration, with a construction period of 4 years [2][3]. - The G8517 Pingshan Xinshi to Yibin Expressway covers about 65 kilometers, with a total investment of approximately 143 billion yuan, also designed for a speed of 80 km/h and a dual four-lane setup, with a construction period of 4 years [2][3]. - The Panzhihua to Yanyuan Expressway has a length of approximately 131 kilometers, with a total investment of around 350 billion yuan, designed for a speed of 80 km/h and a dual four-lane configuration, with a construction period of 6 years [3]. - The Guang'an Ring Expressway West Section is about 76 kilometers long, with an estimated total investment of around 110 billion yuan, designed for a speed of 100 km/h and a dual four-lane setup, with a construction period of 3 years [3]. Group 2: Strategic Importance - These projects are significant for promoting investment and stabilizing growth, contributing to the development of a national comprehensive transportation network, and supporting the construction of the Chengdu-Chongqing economic circle and the implementation of the "Four Modernizations, Urban-Rural Integration, and Five Districts Co-Prosperity" development strategy [1].