Core Points - The Guanghui Expressway expansion project has officially entered the construction phase, enhancing connectivity within the Guangdong-Hong Kong-Macao Greater Bay Area and to regions like Fujian and Jiangxi [1][2] - The project spans approximately 153.9 kilometers, featuring 29 interchanges, 4 service areas, and 2 parking areas, with upgraded lane capacities to accommodate increasing traffic demands [1][2] Project Details - The Guanghui Expressway has been operational since December 2003, with traffic volume steadily increasing, leading to congestion during peak hours [1] - The expansion will upgrade the Huizhou Xiaojinkou to Guangzhou Luogang section from a six-lane to a ten-lane highway and the Huizhou Xiaojinkou to Lingkeng section from a four-lane to an eight-lane highway [1] - The newly constructed Luofeng Tunnel will feature a maximum excavation width of 27 meters and a maximum cross-section of 340 square meters, marking it as the first ultra-large five-lane tunnel in China [2] Technological Advancements - The project emphasizes technological innovation and equipment development, aiming to create a comprehensive intelligent equipment cluster for tunnel construction [2] - It will implement a fully mechanized and intelligent construction process, establishing a replicable model for five-lane tunnel construction [2] Expected Outcomes - Upon completion, the project is expected to alleviate traffic congestion and enhance interconnectivity within the Greater Bay Area, promoting regional coordinated development [2]