South Korea's capital and largest metropolis has turned to AI for suicide detection and prevention on popular bridges along the prominent Han River, according to the system's developers at the Seoul Institute of Technology (SIT).
There are 27 bridges that cross the Han River, also known as the Hangang river, in the Seoul National Capital Area (divided into Seoul, Gyeonggi, Incheon). Many of the city's pedestrians walk on them every day. Unfortunately, only counting suicide attempts from Seoul bridges, researchers said there are an average of 486 people trying to end their lives in the Han's waters every year. This translates to a large amount of required rescue resources, which thankfully are quite successful, at 96 per cent. A more efficient spread of resources, however, would mean being able to potentially save more lives.
With the current setup, which according to an SIT document went live in February, the bridges are monitored by an array of CCTV screens at a control centre, with each small box depicting a different part of the bridge. An employee watches these screens for unusual behaviour that may require interference or a rescue worker. The AI collaboration between SIT and Seoul Fire and Disaster Headquarters is aimed at helping the technicians to better shift their focus by using machine learning to alert them to the scenes most likely to need intervention.