What are the specific functions of subway full-height safety screen doors in ensuring passenger safety?

Subway full-height safety screen doors play a vital role in ensuring passenger safety. The doors are designed to prevent passengers from falling onto the tracks, reduce noise, maintain platform temperatures and provide a better waiting environment.

1. Prevent passengers from falling onto the tracks
Subway track areas are extremely dangerous for non-experts. High-voltage currents, fast-moving trains, and complex mechanical equipment on the track may cause serious injury or even death to people who fall from the track. Therefore, preventing passengers from falling onto the track is a top priority in subway safety management. Full-height security screen doors play a vital role in this regard. This door design completely separates the waiting area from the track area, forming a solid physical barrier. In this way, even when the station is crowded or passengers are careless, it can effectively prevent them from accidentally falling off the track. Full-height security screen doors are also equipped with security devices and alarm systems. Once someone or something is caught by the door, the door will automatically bounce back and trigger an alarm to remind staff to deal with it in time. These designs further enhance the effectiveness of screen doors in preventing fall accidents. In addition to directly preventing falls from the track, the presence of full-height safety screen doors can also play a psychological role. It reminds passengers to pay attention to the danger zone between the platform and the track, thereby enhancing their safety awareness and making them more cautious when waiting for the train.

2. Reduce the occurrence of accidents
During subway operation, passengers sometimes get caught between the train and the edge of the platform. This situation is often caused by passengers trying to enter or leave the carriage just before the train door closes. The full-height safety screen door is synchronized with the opening and closing of the train door, effectively preventing such entrapment incidents. When the train doors close, the safety screen doors also close, physically preventing passengers from approaching the danger zone when the train starts.

3. Improve the overall safety of the platform
The full-height safety screen door not only protects trains when entering and exiting the station, but also maintains the overall order of the platform during daily operations. Since the screen door completely separates the waiting area from the track area, it reduces crowding and chaos on the platform, allowing passengers to wait for the train in a more orderly and safer manner.

4. Improve the waiting environment
Full-height security screen doors significantly reduce noise disturbance. Subway trains will produce loud noises when entering and exiting the station, including wheel-rail friction, wind noise from train operation, etc. These noises will not only affect the waiting experience of passengers, but may also cause disruption to the lives of surrounding residents. Full-height safety screen doors can effectively isolate these noises and provide passengers with a quieter and more comfortable waiting environment. The full-height safety screen door also blocks dust and odors in the tunnel from entering the waiting area. There are often pollutants such as dust and odor in subway tunnels. These substances not only affect the air quality, but may also pose a threat to the health of passengers. Screen doors can effectively isolate these pollutants in the tunnel, keep the air in the waiting area fresh, and provide passengers with a healthier waiting environment. Full-height safety screen doors can also regulate the platform temperature to a certain extent. In hot summers or cold winters, screen doors can block the impact of extreme outside temperatures on the waiting area, keeping the platform temperature within a relatively comfortable range. This not only improves passenger comfort but also reduces the risk of illness caused by temperature changes.

5. Prevent foreign objects from invading the track
If there are foreign objects on the subway track, it may pose a threat to the safe operation of the train. Full-height safety screen doors can effectively prevent passengers or other personnel from throwing or falling foreign objects into the track, thus ensuring the safety of train operations.

6. Safety function in emergency situations
In the event of an emergency, such as a fire or earthquake, the full-height safety screen door can be quickly closed to prevent smoke or fire from spreading to the waiting area, providing passengers with a relatively safe refuge. At the same time, it can also be used as a safe passage during evacuation, guiding passengers to evacuate in an orderly manner.

7. Enhance passengers’ safety awareness
The very existence of the full-height safety screen door is a safety warning, reminding passengers of the danger zone between the platform and the track. This visual isolation helps to enhance passengers' safety awareness and makes them more cautious when waiting for the bus.