The construction of a series of major transportation projects in Shenzhen has "accelerated", spanning the east and west sides. The main cable unit of Lingdingyang Bridge, the Shenzhen China Channel, has been completed recently, and the bridge construction has made breakthrough progress; China Unicom Bay Area and Shenzhen's three major comprehensive transport hubs are planned to be put into operation in succession this year; It will be connected to the downtown of Shenzhen, and Guimiao Road will be opened to traffic soon, realizing a 15 minute fast connection between the downtown of Shenzhen and Qianhai Free Trade Zone. Across the river and across the sea, across the city and across the district, major transportation projects have helped Guangdong Hong Kong Macao Greater Bay Area to achieve "hard connectivity, soft connectivity and heart connectivity". It is a fast passage that bridges across the sea and connects the east and west banks of the Pearl River. On September 21, the underwater connection of E21 pipe joint of the immersed tunnel of the deep and medium channel was completed. So far, the installation length of the immersed tube of the submarine tunnel of the project has reached 4702.8 meters, making a major breakthrough in engineering construction. The Shenzhen China Channel is the core channel of the Guangdong Hong Kong Macao Greater Bay Area and a world-class cross sea cluster project integrating "bridges, islands, tunnels and underwater connectivity". It is expected to be completed in 2024. Also in the near future, the main cable unit of Lingdingyang Bridge in Shenzhen China Channel has also been completed, and the bridge construction has made breakthrough progress. Lingdingyang Bridge in Shenzhen China Channel is a suspension bridge with a main span of 1666 meters, and the main tower is 270 meters high, which is the largest steel box girder suspension bridge in the world at present. The "super project" vigorously promotes the connectivity between the east and west sides of the Guangdong Hong Kong Macao Greater Bay Area and the rapid flow of various factors, and improves the level of "hard connectivity" and "soft connectivity" in the Greater Bay Area. The transportation hub with upgraded quality will help upgrade the urban space. In the urban area of Shenzhen, the countdown to the opening of the new line of the three major comprehensive transport hubs has begun. Gangxia North Hub of "Shenzhen Eye" is the first four line junction station built at one time in Shenzhen. After being put into operation this year, it will realize in station transfer with Line 2, Line 10, Line 11 and Line 14. Huangmugang Junction has four floors of underground space. After opening, it can transfer with Line 7, Line 14 and the planned Line 24. It will explore the construction of the largest operating station in China. The "Dance of the Bay Area" Universiade Hub integrates multiple transportation functions, such as subway, intercity, regular bus, taxi, slow traffic system, etc. The large-scale comprehensive transportation hub effectively promotes the quality of urban space. The smooth and accessible expressway boosts the efficient connectivity of urban areas. The westbound tunnel of Guimiao Road Rapid Reconstruction (Phase I) Project, which was opened to traffic recently, is full of traffic. "After the two-way opening of the tunnel, you can drive from Qianhai Central Area to Binhai Super Headquarters Base in 5 minutes, and you can reach Futian Central Area in 15 minutes." Yan Xuejing, a white-collar worker in Qianhai, felt the real change. The opening of the new road has greatly shortened the travel time between the Free Trade Zone and the downtown area of Shenzhen, effectively promoting efficient connectivity in the core area of Shenzhen. According to the Highway Network Planning of Guangdong Province, by 2035, three more river crossing channels will be added to the Pearl River Estuary, and Dawan District will basically establish and improve the expressway network connecting internally and externally, forming the main skeleton expressway of "twelve vertical, eight horizontal, two ring roads and sixteen radial roads", with a total network mileage of 15000 km. The construction of transportation infrastructure in the Guangdong Hong Kong Macao Greater Bay Area has been promoted in a high-quality manner, and the construction of a diversified comprehensive three-dimensional transportation network has been accelerated, effectively promoting the interconnection of people flow, logistics, capital flow and information flow. (Liu Xinshe)