Japanese rail operator JR East will introduce a new inspection and response system based on artificial intelligence and drones on the Yamanote Line, with the aim of reducing the time needed to resume service after technical incidents by approximately 30%.
The company announced that testing of the system will begin in April 2026, with operational deployment on the Yamanote Line scheduled for fiscal year 2026.
Cameras and AI for rapid fault detection
The first component of the system consists of cameras installed along the line, which will monitor the trains’ pantographs in real time—the equipment mounted on the roof of the train that draws power from the overhead contact wire.
The images will be automatically analyzed by an AI system capable of identifying defects or damage and sending alerts to the control center.
According to the company, the cameras will be installed near the Shinbashi, Ebisu, Mejiro, and Uguisudani stations in Tokyo.
Drones for rapid infrastructure inspection
The second component of the system involves the use of remotely controlled drones to inspect the contact line and other infrastructure equipment following a malfunction.
The drones will be able to be launched quickly from specially designated points along the route and will transmit real-time video footage, allowing technical staff to assess the situation before arriving on-site.
According to JR East, the solution could substantially reduce the time needed to identify the affected area and determine response measures.
Resuming service up to two hours faster
The company estimates that the new system could reduce the time required to resume service after technical incidents by approximately 30%.
In a scenario where repairs previously took about seven hours, the new combination of AI and drones could shorten the response time by approximately two hours.
The system could be expanded to other lines
JR East is already considering expanding the technology to other lines, including the Tokyo–Shinjuku section of the Chuo Line, as well as Shinkansen services.
The introduction of the new system follows several incidents that disrupted rail service in the Tokyo metropolitan area.
In May 2025, several pantographs on the Yamanote Line were damaged due to a fault in the overhead contact line, an incident that affected approximately 250,000 passengers.
Share on:
