"I have been looking forward to it for many years, and now it is finally opening. I am so excited!" Yesterday at noon, near the Jiangnan entrance of the Heyan Road Crossing Channel, many onlookers seemed impatient. At the intersection of Heyan Road and Yanheng Road, a white steel structure arch is set up on the road. There is an electronic information board on the arch, and there are also reminders about height restrictions and prohibited vehicles. This is the Hongshan Road-Heyan Road Expressway. The end of the road is the starting point of the Heyan Road cross-river channel. After vehicles exit the ground from the last tunnel of the Hongshan Road-Heyan Road expressway, they can leave the expressway through the ramp on the right side of the arch and go to the Yanziji area; go straight through the arch and enter the Heyan Road river crossing channel. At the entrance of the tunnel, the characters "Yanziji Yangtze River Tunnel" can be seen. Entering the tunnel, you can see that there are three lanes of traffic on the ground. The streamlined lights on both sides and the suspended green light and traffic signs in the middle make driving in the tunnel very comfortable. The reporter noticed that there were manhole covers every tens of meters in the tunnel, with words such as "evacuation stairs" marked on them. Follow the instructions on the wall to open a manhole cover, and there will be a flight of stairs below. When an emergency occurs in the tunnel, people can use stairs or slides to lead to the escape passage below. It is reported that there are 50 such emergency escape entrances in the tunnel. After driving for a while, the guide sign for Jiangbei New District and the sign for turning right into Baguazhou Central Road appeared. The reporter drove through the tunnel and arrived at the Baguazhou exit in just three or four minutes. A road extending northward in front of us will form the future northern extension of the Heyan Road cross-river channel. A ramp extending to the right branches into two branches in front, pointing to Jiangbei New District and the direction of Liuhe and Baguazhou Yangtze River Bridge respectively. Hu Jiannan, the site manager of the Heyan Road Crossing Channel Project of the Nanjing Municipal Public Construction Center, said that the actual construction time of the Heyan Road Crossing Channel was 56 months since it started in 2017. The total length of the project is 5.7 kilometers, with six lanes in both directions, and a design speed of 80 kilometers per hour. . It only takes about 5 minutes to cross the river from Yanziji to Baguazhou, and then enter Puyi Highway Elevated via Baguazhou, and the whole journey takes no more than 10 minutes. The northern section of the Heyan Road Crossing Channel is connected to the western section of Puyi Highway. An entrance ramp is set up on the Puyi Highway to facilitate vehicles from Jiangbei to directly enter the Heyan Road Crossing Channel. After arriving in Jiangnan, it connects with the Hongshan Road-Heyan Road Express The renovation project was seamless. The reporter learned that the Hongshan Road-Heyan Road Expressway is connected to the Yanziji River Crossing Tunnel in the north, and the Jixiang'an Tunnel, Xiaozhuang Interchange, Heyan Road Tunnel and Hongshan Road Tunnel are set up in the south, and it is connected to the Xinzhuang Interchange. At present, the Hongshan Road Tunnel has been opened to traffic, and the Heyan Road Main Line Tunnel, Xiaozhuang Interchange 1-story Elevated and Jixiang'an Tunnel are ready to be opened to traffic. After traffic is liberalized, vehicles do not need to wait for a traffic light. They can reach Jiangbei and Baguazhou from the Xinzhuang Overpass along the expressway. The Heyan Road cross-river channel and the Hongshan Road-Heyan Road Expressway are important components of Nanjing's "I-shaped three-ring, axial radiation, group express connection" high-speed road network system. Their completion and opening to traffic will realize Nanjing's "well-connected" high-speed road network system. "The complete closure of the Z-shaped rapid inner ring also builds a new cross-river channel for the development of Yongjiang River.