With the growing number of vehicles on China’s roads, urban traffic congestion has become a major challenge, especially in large cities. This not only affects daily commutes but also contributes to rising carbon dioxide emissions and environmental pollution. To address these issues, Sumitomo Electric Industries Co., Ltd. has partnered with Tongji University to develop an advanced public transportation priority control system. The goal is to improve bus efficiency and reduce traffic bottlenecks by giving buses preferential treatment at intersections.
In October 2013, an experimental trial was conducted on a highway in Taicang City, Jiangsu Province, to test the effectiveness of this system in managing traffic flow and prioritizing public transport. The results were promising, showing that the technology could significantly enhance the movement of buses through busy urban areas.
As China's cities continue to expand, the need for sustainable transportation solutions becomes more urgent. While measures such as road expansion and vehicle restrictions have been considered, experts believe that improving public transit accessibility and encouraging its use can be more effective in reducing traffic congestion and pollution. By making public transport faster and more reliable, fewer people may choose to drive, leading to a more efficient and environmentally friendly transport system.
The new bus priority control system combines Sumitomo Electric’s advanced traffic signal control technology with Tongji University’s expertise in bus priority management. It uses signal controllers, vehicle sensors, and wireless communication devices to detect approaching buses and adjust traffic lights accordingly—either extending the green light or shortening the red light to allow buses to pass smoothly.
Sumitomo Electric and Tongji University aim to complete the joint development of the system by the end of March 2014. Following the successful experiment in Taicang, they will evaluate the potential for commercialization. The project was also showcased at the "Intelligent Transport Systems (ITS) World Conference Tokyo 2013" held from October 15 to 18 at the Tokyo Ariake International Convention and Exhibition Center, highlighting the importance of smart transportation solutions in modern urban planning.
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