How about the formal commercial operation of intelligent transportation systems and autonomous vehicles? On June 23, the reporter walked into Yongchuan District, Chongqing, the first city in the western region to launch the commercial travel service of autonomous vehicles, visited the digital command Hall of Yongchuan smart city, and tried to take the autonomous bus to feel the changes brought about by intelligent transportation. Build smart transportation? 36% reduction in congestion mileage during peak hours In the digital command Hall of Yongchuan smart city, the road congestion, real-time alarm and other data within the coverage of the intelligent transportation system can be visually seen on the large screen, so as to realize one screen perception of the traffic status of the whole region. The AI algorithm can automatically optimize the timing every 3 to 5 minutes to release the traffic pressure with the intelligent "green wave belt". "For example, if a certain road section is congested, the AI self-adaptive will adjust the traffic lights at other intersections to make the red lights last longer and avoid more cars being blocked together. We will take this time to evacuate the scene, saving a lot of manpower." Zhang Yong, an old traffic policeman who has worked in the front-line traffic in Yongchuan, Chongqing for 28 years, said that in the past, if there was a traffic jam, it would only rely on manual on-site evacuation, sometimes it would take oneortwo hours to recover. Now the traffic is more intelligent, which also greatly reduces the burden on the front-line traffic policemen. (traffic supervision is being carried out in the digital command Hall of the smart city in Yongchuan District.) It is understood that there are 17 dynamic green wave belts in Yongchuan urban area, forming a regional green wave network. Through the real-time acquisition of vehicle traffic status and road speed, the intelligent information control platform can jointly adjust the traffic lights at each intersection, so that the driver can pass through 17 intersections without stopping or with less stopping. Within the coverage of the intelligent transportation system, the average speed of main roads has increased by 11%, the travel time has decreased by 17.4%, the average number of stops during peak hours has decreased by 59.5%, the congestion mileage during peak hours has decreased by 36%, and the handling efficiency of traffic police has increased by 35%. In the past two years, Chongqing has cooperated with Baidu to complete the construction of several key projects in various districts, transforming more than 110 intelligent intersections and upgrading 1800 roadside parking berths. Zhang Yong said: "the construction of intelligent transportation reduces the time for vehicles to wait for traffic lights, improves the traffic volume, and makes people's travel more efficient." Not only that, citizens can also use the "parking space level parking navigation" function of Baidu map to view the use of roadside parking spaces in Yongchuan District in real time. By one click navigation, they can directly navigate to idle parking spaces, eliminating the trouble of finding parking spaces. Official operation of autonomous public transport? Chongqing intelligent network enters the "fast lane" "The next stop is Jinke, the east gate of the College of Arts and Sciences." On the first self driving medium bus demonstration operation line in China, the voice broadcast sounded in the self driving bus. The line passes through Yongchuan Shennv lake, agricultural machinery school, Guanyinshan Park and other stations, with a two-way mileage of nearly 10 km. The reporter saw in the car that although the driver's seat was equipped with a safety officer, the safety officer's hands did not touch the steering wheel during the whole driving process, which was basically controlled by AI in the whole process. Two screens are set in the vehicle, one for live broadcasting of the cab and the other for showing the traffic outside the vehicle. (driverless buses run on city roads.)? "Although it is automatic driving, the display screen allows passengers to know the situation inside and outside the car in real time, and there are voice reminders at any time. It is very reassuring to have a safety officer." Mr. Zhou, a passenger, said that the driverless car looks no different from the ordinary bus. When you get on the bus, you can swipe your card for two yuan per person, and even realize the function of wearing a mask to brush your face and pay. Viewed from the outside, this self driving bus is 5.9 meters long. It has 4 laser radars, 2 millimeter wave radars and 7 monocular cameras, which can help the vehicle detect all kinds of information during driving. The 360 degree dead angle design makes it more comprehensive. At the same time, through v2x vehicle road coordination technology, information such as pedestrians and cars on the current road surface, as well as blind areas invisible from the driver's perspective, can be reflected on the screen in the vehicle, and even traffic light changes and waiting time can be predicted in advance, so that vehicles can make decisions and plans in advance and improve traffic efficiency. At present, Baidu's five Apollo moon extreme fox models have been tested for unmanned automatic driving on an open test road of 85 square kilometers in Yongchuan District, Chongqing. At the same time, Baidu's self driving travel service platform "turnip express" has also provided self driving travel charging service in Yongchuan District, recommending nearly 60 boarding points, covering core areas such as scenic spots, schools, business circles, residential areas, industrial parks, etc. With the development of unmanned automatic driving test, it will provide the citizens of Yongchuan District with "no one behind the steering wheel" unmanned automatic driving travel service in the future. It is understood that Chongqing Yongchuan has started to develop the intelligent connected vehicle industry in 2019, and built an open test and demonstration operation base for autonomous driving in the West. In 2021, it was approved as the policy pilot area for intelligent connected vehicles in Chongqing. At present, there are 27 test vehicles, with a total test mileage of more than 1million kilometers. At present, the base has been built into a testing and demonstration base with the most abundant application scenarios and the largest scale of autonomous vehicles in the western region. It has built the first L4 level autonomous driving open test base in China, formed the first base in China to provide full chain test and detection service capability for the automotive industry, created the first demonstration operation line of autonomous minibus in China, and launched the L4 level autonomous bus in Yongchuan, Chongqing. (Xinhua News Agency)