Two hazards lurk on station platforms and inside stations: accidents caused by people falling off and accidents caused by congestion. This chapter describes how image sensing technology (Image AI) is used to solve these problems, using two systems installed in train stations in Japan as examples. To ensure safety and security in the station, it is necessary to use a system using Image AI that can constantly monitor the situation and detect abnormalities in real time. However, use cases for a fully autonomous system that does not require human workloads are not currently worked on. To prevent train delays and on-site confusion caused by misjudgment of Image AI, the company is working to ensure safety in the entire system that combines people and technology, such as taking actual action after an operator decides. In short, Image AI is used as a function to support human judgment. Future technological advances are expected to speed up the actual action.