Nanchang will introduce Japanese technology to build intelligent transportation system

For the citizens who drive on the road, based on the radio and traffic police gestures to obtain traffic information, they can truly realize the interaction of road vehicles through intelligent transportation. In addition to electronic signage, a more widely used intelligent transportation system has been successfully developed and will soon appear in Nanchang. In the middle of this month, traffic inducement cards with electronic displays first appeared on the streets of Nanchang. After the official use, the traffic conditions of the surrounding roads will be indicated by red (congested), yellow (slow), and green (clear) lights.

● Background Automated society needs intelligent transportation The industrialized countries, under the guidance of market economy, have mostly experienced economic development to promote the development of automobiles, and the development of the automotive industry has stimulated the process of economic development, which has enabled these countries to realize the era of automobileization as early as possible. However, the social problems such as traffic jams, traffic accidents, energy consumption and environmental pollution brought about by the automotive society are deteriorating, resulting in huge economic losses. The U.S. and Japan, which have developed road facilities, are all trying ITS (Intelligent Transportation Systems) solutions. Congestion problem.

The technology has been used in developed countries for 20 to 30 years. Currently, the most widely used area in the world is Japan. For example, VICS in Japan (Road Traffic Information System, a set of application products in the ITS field) is quite complete and mature. It is also widely used in Europe and other regions. It has also been widely used in Beijing, Shanghai and other places in China.

Making the roads themselves “instruct” the Intellitelli Transport Systems (ITS) sounds a little unfamiliar, and professionally speaking, it is a kind of function in a wide range and in all directions, real-time, accurate and efficient. Comprehensive transportation and management system. In general terms, in the past traffic command, the traffic police managed to crossroads traffic can only rely on hand and Taiwan echoed the neighboring one or two intersections, far away in two or three kilometers of traffic information is inevitable blind spots. The executive vice president of Jiangxi Lingjia Technology Co., Ltd., who is developing ITS in Nanchang City, said: “The most direct role of ITS is to make the roads 'talk', collect information from various intersections to the system, and allow the road to 'direct' traffic! ”

● Concern over the introduction of the ITS version of the Nanchang version The introduction of the Japanese technical reporter learned that Jiangxi Lingjia Technology Co., Ltd. and Japan’s Hitachi are partners, and Lingjia Company is relying on Hitachi’s technology for urban traffic in Japan for decades to prepare the technology. Brought to Nanchang. The company’s ITS software product developed for Nanchang was released in February this year. Not long ago, the company had submitted information on "Suggestions on Nanchuan Intelligent Transportation" to various departments such as the traffic police and the National Development and Reform Commission of Nanchang. It was ready to start the commercialization of the ITS commercial version of Nanchang, and it was also used in Wuhan and Changsha. The city is promoting intelligent transportation systems together.

The reporters of the first phase of the project planning to cover the old city of Nanchang learned that the Nanchang version of the ITS does not rely on government funding. North to Yangming Road, south to Tanzikou, east to Pengjia Bridge, west to Lancang River, this is Jiangxi Lingjia Technology Co., Ltd. is ready to start the first phase of the project, invested 200 million yuan, plans to recover costs within 5 years. The second phase extends to the main cities of Nanchang, including Honggutan, Yaohu and Badashanren. The total investment for the two phases is RMB 500 million.

Lingjia revealed that they plan to install an information collection system on 8,000 public vehicles (such as buses, taxis, etc.), that is, a loop antenna less than 50 centimeters long to collect traffic signals. At the same time, the project will also install a signal receiving device in Nanchang Street, and the collected car signal will be sent to the traffic control center through the network. The central processing device will process the data in real time and compile it into “congestion information” and “time required”. Information, etc., then appeared on the electronic information display board set up on the road, promptly conveying traffic jams to the driver.

The use of traffic guidance cards was first used in the city entrance. Currently, the Nanchang traffic police department is stepping up efforts to build an intelligent command center. In August, it will complete the construction of a platform and 11 subsystems to realize intelligent monitoring, guidance, and command of road traffic. At the end of this month, 25 large-scale traffic inducing cards will be the first ones to be opened in the city entrance of Nanchang City, and the urban road traffic situation will be clear at a glance.

The owner of “a dollar a day” can enjoy intelligent transportation. Besides facilitating the management of the transportation sector, what can ITS bring to ordinary citizens? Ke Zhiwen said that after the official opening of the ITS, public security vehicles, emergency vehicles, and fire vehicles will be given priority. There will also be some trial private cars that will install a 7-inch color navigation device. The owner can use the color navigation device to grasp the traffic conditions of the entire Nanchang City in real time. “For example, if you drive from the Hi-tech Zone to Honggutan, if the congestion occurs on Yangming Road, the navigator will automatically remind you to go to the Red Valley Beach from the adjacent micro-circulation system such as Qingshan Road, Sanjing Road, and Erjing Road. In layman's terms, This is like a Nanchang local version of the GPS satellite navigation. The vehicle owner can receive the intelligent transportation service for an average of one yuan a day as long as he/she costs more than 300 yuan a year."

● Voice ITS is similar to Green Wave traffic assistance. It is not obvious that ITS has been very successful in Japan. Can the Japanese model be successfully copied to Nanchang? In this regard, Nguyen Van Chung, deputy dean of Jiangxi Normal University, believes that it is not optimistic. Japan has used the intelligent transportation system very early and has achieved good results. Some major cities in China, such as Shanghai and Beijing, have also used the intelligent transportation system to relieve traffic congestion. However, the intelligent transportation system is similar to the Green Wave transportation that is already being promoted abroad. It is to coordinate the signal lamp settings of each intersection on a certain road, so that a group of vehicles will pass through a junction after the green time and then all the way through the next setting. The intersection is green and there will be no red light. Green wave traffic can only be used at about 50% of saturation, and the saturation at Nanchang junction has reached 80% to 90%. The promotion of intelligent transportation systems will not be very helpful.