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Busan Metropolitan City to Establish an AI-Based Smart Traffic System that Detects in Advance and Responds: Mayor Park Heong-joon “Actively Responding to Future Mobility Changes”

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Busan Metropolitan City (Mayor Park Heong-joon) announced that it will fully promote the advancement of an “intelligent traffic signal system” that integrates artificial intelligence (AI) with traffic data to enhance traffic convenience experienced by citizens.

The city is currently implementing the “Smart Village Distribution and Expansion Project” (total budget: KRW 2.92 billion) and is preparing a project plan for the “AI-Based Traffic Management System Development Project” with an additional KRW 4.5 billion secured in national funding. It plans to gradually introduce new services, including the expansion of smart intersection infrastructure and support for the safe operation of smart freight vehicles.

A “smart intersection” refers to an intelligent traffic system that generates optimal signal timings based on big data extracted from various intersection information (traffic volume, speed, incidents, etc.) and reflects them in signal cycles, effectively improving traffic flow and reducing congestion.

First, through the ongoing “Real-Time Intersection Information Service Development Project,” the city will expand smart intersection infrastructure and strengthen a data-driven traffic management system. Currently, smart intersection systems are installed and operated at 223 intersections, analyzing vehicle flow and monitoring incidents within intersections in real time. Through this project, the system will be additionally installed at 20 major intersections.

The city also plans to expand the optimal signal control system to alleviate traffic congestion by applying AI-based traffic data to a “real-time signal control system” and “smart responsive signals.” Pilot operation of the AI-based real-time signal control has resulted in an average increase in travel speed of approximately 2.25 km/h and a reduction of more than 10 percent in intersection delay time. Based on these results, the system will be expanded to areas around Sinhodaegyo Bridge and along Mandeok-daero (Deokcheon Station to Namsanjeong Station section).

In addition, the city will continue to build a safe and convenient traffic environment that citizens can directly experience by expanding the “real-time signal information sharing.” Currently, real-time signal information—such as signal status and remaining time at major intersections—is provided through major mobile applications including Kakao Navi, Naver Map, and T-map, as well as in-vehicle navigation systems of Hyundai (Blue Link) and Kia (Connected Car). This has contributed to safer driving by reducing unnecessary sudden stops and intersection blocking.

Looking ahead, the city plans to introduce new AI-based intelligent transportation systems to create a safer driving environment and expand citizen-oriented services. An “intersection flood detection and alert system” will be introduced at 11 frequently flooded intersections to provide advance information on detours and traffic control, thereby preventing secondary damage.

The “emergency vehicle priority signal system” will be expanded across all areas of Busan by 2027. It will also be extended to emergency vehicles entering Busan from Gyeongsangnam-do and Ulsan, while providing nearby vehicles with information on approaching emergency vehicles through mobile navigation systems.

In addition, beginning in 2027, the city plans to introduce a “smart freight vehicle safe operation support service,” which will enable analysis of driving patterns through freight vehicle data linkage and support optimal signal operations, ensuring driving safety and rapid response to incidents.

The city expects that upon completion of the ongoing “Real-Time Intersection Information Service Development Project” and the new “AI-Based Traffic Management System Development Project,” citizens will be able to directly experience improvements in traffic conditions in their daily lives, including enhanced traffic flow, strengthened emergency response and traffic safety, reduced signal waiting times, and expanded citizen-oriented traffic services.

Mayor Park Heong-joon stated, “The core of the future mobility environment lies in fully ensuring citizens’ safety and freedom of movement,” adding, “The establishment of this AI-based system will serve as a turning point in fundamentally transforming Busan’s traffic system, enabling us to proactively respond to rapidly changing future mobility environments.”