四川：新宜高速开工，川南与攀西再添一条大通道

Core Viewpoint - The construction of the Xinyi Expressway (G8517) officially commenced on August 31, 2023, aiming to enhance connectivity between the southern Sichuan economic zone and the Panxi economic zone, thereby facilitating regional economic development [1][2]. Group 1: Project Overview - The Xinyi Expressway starts from Xinshi Town in Ping Shan County, Yibin City, and connects to the under-construction G4216 Ping Shan New City to Jinyang Expressway [1]. - The total length of the main line is 65.1 kilometers, with an additional 22.5 kilometers of three connecting lines being constructed simultaneously [1]. - The project is designed as a dual four-lane expressway with a speed limit of 80 km/h and a roadbed width of 25.5 meters [1]. Group 2: Construction Details - The project is divided into six construction sections, with all contractors having mobilized to the site [2]. - Key control projects, such as the Yangjingshan Tunnel and Dashanding Tunnel, are currently undergoing preliminary work for access roads [2]. - The construction period is set for four years, with completion and opening to traffic expected by 2029 [1][2]. Group 3: Strategic Importance - The Xinyi Expressway is part of the National Highway Network Planning (2022-2035) and is included in the 102 major projects of the 14th Five-Year Plan [2]. - Upon completion, travel time from Yibin to Xichang will be reduced from 7 hours to approximately 4.5 hours, and travel time from Yibin city center to Xinshi will be cut to under 1 hour [2]. - The expressway will create a convenient corridor connecting the Panxi economic zone, southern Sichuan economic zone, and Chongqing, enhancing trade and industrial cooperation between these regions [2].