Platform screen doors are mainly applied in the platform areas of
various urban public transportation systems. Their core function is
to separate the platform from the driving area, ensuring passenger
safety, improving the waiting environment, and enhancing
operational efficiency. The specific application fields are as
follows:
1. Rail Transit Field
Metro: It is the most important application scenario for platform screen
doors. Almost all newly-built metro lines are equipped with
platform screen doors, especially underground stations. They can
effectively prevent passengers from accidentally falling onto the
track, avoid items falling and affecting train operation, and at
the same time reduce the air exchange between the tunnel and the
platform, lowering air conditioning energy consumption.
Light Rail/Monorail: Some elevated or ground light rail and monorail line platforms
are also installed with platform screen doors, especially at
stations with large passenger flow and high safety requirements,
such as urban central areas and transfer stations.
Maglev Trains: Platforms of maglev lines also need screen doors. Due to the high
speed of maglev trains and special safety risks in the track area
(such as strong magnetic fields or high voltage), screen doors can
provide additional safety protection.
2. Bus Rapid Transit (BRT) Field
The application of screen doors in BRT dedicated platforms
(especially enclosed platforms) is gradually becoming popular. They
can separate the waiting area from the BRT dedicated lane, prevent
accidents caused by passengers crossing the lane, and at the same
time cooperate with the door linkage when the vehicle stops to
realize orderly passenger boarding and alighting, improving the
operational efficiency and safety of the BRT system.
3. Railway Station Field
High-speed Railway Stations/Motor Train Stations: Some high-speed railway platforms (especially hub stations with
extremely large passenger flow, elevated platforms, or areas that
need strict safety control) will be installed with screen doors or
semi-high guardrails to prevent passengers from getting close to
the track edge. It can effectively reduce potential safety hazards,
especially when trains pass by or stop at high speed.
Ordinary Railway Stations: A few ordinary railway passenger stations with dense passenger
flow may also install screen doors according to safety needs,
especially platforms operating at night or with trains passing at
high speed.
4. Other Special Transportation Fields
Airport APM System: Platforms of the internal APM system connecting airport
terminals, parking lots, and satellite halls are usually installed
with screen doors to ensure the waiting safety of passengers
(especially those carrying luggage).
Port Terminal Shuttle Trains: Some passenger shuttle train platforms in large ports may also be
equipped with screen doors to prevent people from accidentally
entering the track area.
In conclusion, the core application of platform screen doors is in
scenarios where "there are crowded platforms and there is a need
for safe isolation between the track/lane and the platform". They
achieve safe and efficient transportation operation management
through physical isolation.