We often take the subway to work and travel in our daily life. There are screen doors in the subway station. What are the functions of subway screen doors?
1. The installation of "screen door" in subway platform effectively reduces the loss of platform air conditioning caused by air convection.
2. Prevent passengers from entering the rail area or equipment area by mistake or intentionally, and prevent foreign matters from falling into the rail area and affecting the normal operation of the train.
3. PSD has sound insulation effect, which can reduce the noise level heard on the platform, especially the running noise of the train in the curve before entering the station.
4. It is convenient to organize the air flow in the tunnel space, which can reduce the resistance during train driving and keep the air "fresh" in the tunnel. It provides convenience for passenger flow control and train dispatching in peak hours.
5. It not only looks tall, but also prevents people from jumping off the track and committing suicide.
6. Prevent passengers from being sucked by the strong negative pressure generated by the high-speed train without stopping to get on and off passengers, resulting in tragedy.
7. It ensures the absolute safety of trains and passengers when entering and leaving the station, and provides a comfortable waiting environment.
8. Another function of PSD is highly praised and affirmed by passengers: PSD can really be used to look in the mirror!
9. Since there is no need to set a safety yellow line distance of nearly one meter after the installation of PSD, some space can be made for the subway platform.
10. The screen door and the train door act synchronously. If the train does not enter the station and open the door, no one can fall under the platform.
11. Isolate the tunnel from the station so that they do not affect each other.