广惠高速改扩建项目开工，大湾区大通道再升级

Core Points - The Guangzhou-Huizhou Expressway expansion project has officially commenced, marking a significant upgrade to the Greater Bay Area's transportation network [1] - The project aims to alleviate traffic congestion and enhance connectivity between the Greater Bay Area and eastern Guangdong, as well as other regions [2] Group 1: Project Overview - The Guangzhou-Huizhou Expressway expansion project spans approximately 153.9 kilometers, starting from Huangpu District in Guangzhou and ending in Huidong County, Huizhou [1] - The project includes the construction of 29 interchanges, 4 service areas, and 2 parking areas, with varying design speeds of 100 km/h and 120 km/h [1] - The existing road sections will be expanded from a six-lane to a ten-lane configuration and from a four-lane to an eight-lane configuration [1] Group 2: Technical Aspects - The newly constructed Luofeng Tunnel will feature a maximum excavation width of 27 meters and a maximum cross-section of 340 square meters, making it the first ultra-large five-lane tunnel on the mainland [2] - The project will focus on technological innovation and equipment development to achieve fully mechanized and intelligent construction processes for the tunnel [2] Group 3: Expected Impact - Upon completion, the project is expected to significantly reduce traffic congestion and strengthen the interconnectivity of the Greater Bay Area [2]