A Passenger Information System (PIS) is a critical component of modern urban rail transit, leveraging advanced technologies like computer and multimedia systems to deliver real-time, personalized information. Through station displays and onboard screens, PIS provides passengers with vital updates such as:
- Travel instructions and schedules
- Train arrival and departure times
- Emergency evacuation alerts
- Live TV broadcasts, advertisements, and media news
In emergencies like fires or riots, the system dynamically switches to safety prompts, ensuring passenger security.