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Smart Intersections Make Traffic Safer! Busan Metropolitan City Expands AI-Powered Transportation System

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Busan Metropolitan City, led by Mayor Chun Jae-soo, announced that it has completed the “Real-Time Intersection Information Service Project,” a KRW 2.9 billion initiative undertaken as part of the Smart Village Deployment and Expansion Project, and will expand its artificial intelligence (AI)-powered transportation system beginning this month (September).

The project was implemented to collect and analyze traffic conditions in real time and integrate traffic signal information and information on vehicles transporting hazardous materials, thereby managing traffic flow more efficiently and improving intersection safety.

Through the project, the Intelligent Transport System (ITS) will be expanded to include intersection flood detection, open access to traffic signal information, real-time signal control, smart traffic-responsive signals, and the integration of traffic information on vehicles transporting hazardous materials.

First, a new “Intersection Flood Detection System” has been introduced to support safe travel for residents by providing information for traffic control and detours.

The Intersection Flood Detection System uses flood detection algorithms at 11 major flood-prone intersections. When an intersection is flooded due to torrential rainfall or other causes, the system can provide residents with detour and traffic control information to help prevent secondary damage.

Next, Busan Metropolitan City has expanded its “Real-Time Traffic Signal Information Open Infrastructure” to enhance safety at intersections by helping prevent speeding and vehicles from entering intersections without sufficient space to clear them.

Since January 2025, the infrastructure has provided traffic signal status and remaining signal time information throughout the Centum area via major mobile applications, including KakaoNavi, NAVER Map, and TMAP, as well as Hyundai Motor’s Bluelink and Kia’s Connected Car navigation services. The service has now been expanded to 25 intersections along Yeonsu-ro, Suyeong-ro, and Chungnyeol-daero.

Busan Metropolitan City will also expand the deployment of smart intersections and use its “Real-Time Traffic Signal Control System” and “Smart Traffic-Responsive Signal System” to optimize traffic signals and improve traffic flow.

Pilot operations showed that the Real-Time Traffic Signal Control System reduced intersection delays by more than 10%, while the Smart Traffic-Responsive Signal System reduced delays by 36%. Similar reductions in unnecessary signal time are expected at eight major intersections where the systems have newly been installed.

Accessibility has also been significantly improved so that residents can make greater use of this advanced traffic information in their daily lives.

Through the redesigned Busan Metropolitan City Traffic Information Service Center website at https://its.busan.go.kr/ and its mobile application, residents can intuitively check real-time traffic conditions, making Intelligent Transport System services more convenient and accessible.

Meanwhile, Busan Metropolitan City signed a memorandum of understanding with the Korea Transportation Safety Authority yesterday, September 22, on “Sharing Future Transportation and Safety Information and Advancing Traffic Safety Culture,” with the aim of creating a safer driving environment in areas such as Busan Port, where large numbers of vehicles transporting hazardous materials travel.

Under the agreement, the Korea Transportation Safety Authority will provide Busan Metropolitan City with real-time operational and accident information on vehicles transporting hazardous materials that enter the city. Based on this information, the city plans to analyze freight vehicle travel patterns and immediately share information with relevant agencies when unexpected incidents occur, enabling a rapid initial response and minimizing the spread of damage.

Mayor Chun Jae-soo said, “We will continue to advance transportation service models that reflect Busan’s traffic conditions and characteristics to create a safe transportation environment that residents can experience in their daily lives.” He added, “We will continue to actively introduce advanced smart technologies and proactively respond to future changes in transportation.”