Smart technology adds "green" and improves efficiency to highways
2024-07-23
Recently, at a series of themed press conferences on "Promoting High Quality Development" held by the State Council Information Office, Minister of Transport Li Xiaopeng revealed that the total length of China's comprehensive three-dimensional transportation network has exceeded 600 kilometers, including 183600 kilometers of expressways. What new travel scenarios has the vast mileage of highways presented with the support of smart technology? A reporter from Science and Technology Daily recently visited some highways operated and managed by China Railway Transport Investment Group Co., Ltd. (hereinafter referred to as "China Railway Transport"), experiencing the latest innovative achievements in operation and maintenance. Intelligent dynamic lighting saves 78% energy. The Yunnan Yuxi Chuxiong Expressway section is an important component of the Guangzhou Kunming Expressway connection line (G8012) and the Mile Chuxiong Expressway in the national highway network planning. When the car entered the Ganhaizi Tunnel on the Yuchu Expressway, the reporter found that the lighting inside the tunnel was turned on and off according to the needs of the vehicle's movement. This is the tunnel accompanying intelligent dynamic lighting scene we are exploring, "said She Guobin, Secretary of the Party Working Committee and General Manager of China Railway Southwest Operation Center. This lighting technology can achieve real-time adjustment of LED tunnel light switch and brightness. According to system design and similar case studies, the accompanying intelligent dynamic lighting scenario applied by China Railway Southwest Operation Center in Ganhaizi Tunnel can achieve an energy-saving efficiency of 69% -78% in traffic conditions with a daily average traffic flow of 1000 vehicles on one side. Experts believe that the accompanying intelligent dynamic lighting scene of Ganhaizi Tunnel has effectively promoted the transformation of highway operation mode towards energy conservation and carbon reduction, and accumulated replicable and promotable experience and practice in intelligent management of tunnel intelligent lighting. Cut off the accident tunnel at the first time while driving on the highway. If an emergency occurs in the tunnel ahead, manual barriers and electronic warning lights are usually set up at the intersection. Nowadays, the tunnel emergency warning and blocking system has gradually been applied in highway tunnels. After an emergency occurs in a special tunnel, on-site control has a lag effect, which can easily lead to vehicles not being able to brake in time Miao Tiejun, Secretary of the Party Working Committee and General Manager of China Railway Transportation North Operation Center, said. The Jingxing Expressway connects Jingle County in Xinzhou City, Shanxi Province with Xing County in Lvliang City. On June 26th, the Department of Transportation of Shanxi Province, the People's Government of Lvliang City, and China Railway Transport jointly held a joint emergency drill for traffic accidents in the Dawanshan Extra long Tunnel of Jingxing Expressway. In this drill, the tunnel emergency warning and interception system was used for the first time at the entrance of the tunnel. Three lines of defense were formed at distances of 500 meters, 180 meters, and the entrance of the tunnel, respectively, through sound and light alarms, light fog soft blocking, and automatic interception by railing machines. This system integrates a series of speed control measures such as sound, light, and shadow. When a dangerous situation occurs in the tunnel, the system flashes high-frequency through the sound and light alarm and emits a high decibel alarm sound; The intelligence board has issued a no entry instruction, and the traffic signal has been changed to a warning color. At the same time, the smoke generator simulates the generation of smoke, and the laser generator emits infrared radiation into the smoke, forming a traffic soft blockade form of 'light curtain+projection+various display instructions'. The entire accident tunnel entrance was closed in 38.67 seconds, achieving the goal of 'cutting off' the traffic flow at the accident tunnel entrance in the first time Miao Tiejun said. Intelligent toll collection robots have been widely promoted on highways such as Shantou Zhanjiang Expressway, Puyang Hubei Yangxin Expressway, Jingxing Expressway, and Yibin Yiliang Expressway, with a 5-second card issuance and a 20 second payment passage. For vehicles that have not installed ETC, most high-speed toll collection is done manually. China Railway Transport, in collaboration with relevant technology enterprises, has jointly developed the 'All Station No Pavilion+Smart Cloud Warehouse' smart toll station Liu Lijun, Secretary of the Party Working Committee, Chairman, and General Manager of China Railway Transportation Shanzhan Company, said. At the Shanzhan Expressway toll station, the reporter saw that the intelligent unmanned toll robot system integrates lane information, event information, control instructions, etc., combined with toll business scenarios, and integrates multiple intelligent modules. The intelligent unmanned toll collection robot system provides self-service card issuance at the entrance and self-service payment at the exit, achieving 5-second card issuance and 20 second payment passage, improving the efficiency of lane passage at the toll collection site. The Puxin Expressway adopts a fully standardized unmanned toll station based on an intelligent cloud warehouse system. Unattended toll stations set up independent card issuers, independent payment machines, intelligent node three in one equipment, smart cloud warehouses, vehicle type recognition and other equipment to collect lane information, collection and payment, special information and other content information to the terminal, and implement cloud computing processing and feedback, breaking the traditional single mode of manual toll booth. Toll time and customs clearance efficiency are increased by 30%, and special information feedback and emergency response efficiency are improved by nearly 40%, which not only effectively reduces the construction and labor costs, but also brings more intelligent, convenient and efficient travel experience to the majority of drivers and passengers. While creating a favorable traffic environment for drivers and passengers, China Railway Transport has also adopted new digital technologies for the maintenance and upkeep of highways, such as the Beidou Slope Integrated Intelligent Monitoring System. The technical director of China Railway Transport explained that this system combines satellite navigation, intelligent Internet of Things, integrated communication and other technologies, and uses cloud computing and machine intelligence for big data processing to provide all-weather monitoring of highway slopes, real-time grasp of slope disasters, change factors, deformation, change rate, warning thresholds and other data, improving the efficiency of construction and operation management work. (New Society)
Edit：Xiong Dafei Responsible editor：Li Xiang
Source：People.cn
Special statement: if the pictures and texts reproduced or quoted on this site infringe your legitimate rights and interests, please contact this site, and this site will correct and delete them in time. For copyright issues and website cooperation, please contact through outlook new era email：lwxsd@liaowanghn.com
Think Tank
Recommended Reading Change it 
Home
