In a recent visit to the Nanjing Traffic Management Bureau's command center, citizens were amazed by the high-tech surveillance and control system that monitors the city’s traffic in real time. As they entered the hall, 160 large screens immediately caught their attention, displaying live footage of roads across the city. The visual spectacle left many visitors speechless, with one even comparing it to scenes from American action movies.
This advanced "Cloud Traffic" command system is powered by 1,038 surveillance cameras spread throughout the city, including 493 high-definition cameras covering most major roads. These cameras not only monitor traffic flow but also detect violations such as illegal parking, running red lights, and driving on restricted lanes. The data is instantly displayed on the massive screens, allowing traffic officers to respond quickly and efficiently.
One visitor, who owns a private car, was curious about how traffic police can catch drivers who break the rules. The command center head explained that the system doesn’t just rely on fixed cameras at intersections. Instead, the network of cameras covers most road sections, making it nearly impossible for violators to go unnoticed. For example, a camera at the entrance of Jiangsu Provincial Hospital captured a Peugeot 307 violating traffic rules by driving on a non-motorized lane. The footage was immediately sent to nearby officers, who responded swiftly.
The system also includes a real-time blacklisting feature that helps identify vehicles involved in serious offenses, such as using fake license plates. Once a vehicle is flagged, it can be intercepted and investigated. This has significantly improved the efficiency of law enforcement in detecting and punishing traffic violations.
Another key component of the system is the intelligent traffic signal control, which adjusts light timings based on real-time traffic conditions. On Beijing West Road, for instance, the green light duration changes depending on the direction and volume of traffic. During peak hours, the light stays longer in the direction with heavier traffic, helping to reduce congestion.
Additionally, the city uses microwave detection technology to measure traffic density and flow. Combined with GPS data from taxis, this system provides accurate information about road conditions. This data is then used to update 52 LED traffic guidance screens around the city, informing drivers about congestion and suggesting alternate routes.
Despite these advancements, the traffic control department continues to improve its systems. They are working on integrating more data sources and expanding the use of smart traffic guidance to help drivers avoid delays. Whether through mobile apps, SMS alerts, or social media updates, the goal is to keep drivers informed and reduce the frustration of unexpected traffic jams.
The command center is not just a place for monitoring; it's a hub of innovation and efficiency, proving that modern technology can make urban life smoother and safer for everyone.
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