TAIPEI RAPID TRANSIT CORPORATION

Visitors: 6761156
:::
You are here: Home > Guidance

Guidance

Safeguards for Passengers Waiting on Platforms --- Platform Screen Doors and Track Intrusion Detection System

Introduction to the platform doors.
Introduction to the platform doors.
Platform doors in operation.
Platform doors in operation.

Installation of platform screen doors on new metro lines is a worldwide trend. However, it is much more difficult to install them on operating metro lines. On November 28, 2005, Taipei Rapid Transit Corporation (TRTC) commenced installation of platform screen doors on six platforms at Taipei Main Station (Tamsui and Nangang lines), and Zhongxiao Fuxing Station (Nangang Line), in addition to a revision of car-borne signaling systems on 64 trains. After one year, these systems started operating on December 1, 2006. There are 24 platform screen doors on each platform, with a height of 1.45 meters and a width of 1.8 meters. They improve the safety of passengers waiting on the platform and do not interfere with air conditioning and fire fighting systems.

It is very challenging to install platform screen doors on operating metro lines. The construction must not disrupt regular service and measures should be taken to ensure the safety of construction sites. After service hours, there are only 3.5 hours at night for the work to be carried out. According to a study on 3 platforms installed with platform screen doors on a trial basis on Line 13 of the Paris Subway, platform screen doors can prevent passengers or their belongings from falling onto the tracks or into the gap between the train and the platform, so fatal accidents would be avoided. After the installation, the number of delays caused by passengers was effectively reduced by 69%.

The platform screen doors were designed with auto-detection sensors to sense obstructions. While the platform screen doors are closing, if the platform screen doors detect an obstruction, they will automatically open to ensure the safety of passengers. In addition to the safety design considerations, all EMU drivers will observe the platform and make sure that the platform screen doors are closed, confirming safety before the trains leave the station.

 
Yuanshan Station
Yuanshan Station
Yuanshan Station
Yuanshan Station
Taipei City Hall Station
Taipei City Hall Station
Drilling.
Drilling.
Positioning and measuring.
Positioning and measuring.
Installation of platform doors.
Installation of platform doors.
Adjustable camera.
Speed dome camera.

To further enhance the reliability and safety of the MRT system, installation of platform screen doors began on September 4, 2009 for platforms at Yuanshan Station, Sun Yat-Sen Memorial Hall Station and Taipei City Hall Station. These stations, as high-capacity stations, are often used as entry points for major public activities, so they face the challenge of crowd control. Installation for platform screen doors at Yuanshan Station, Sun Yat-Sen Memorial Hall Station and Taipei City Hall Station were all completed on August 9, 2010 and began operation on October 1, 2010. Based on aesthetic considerations, as well as to avoid obstructing the passengers' view of electronic bulletins installed on the train window, the height of the doors was reduced to 1.4 meters. This allows the doors to be more effectively integrated into the design of the station. The width of the doors has been increased to 2.1 meters for passengers' easy access.

Besides the above-mentioned 6 stations, TRTC continues this project to demonstrate its determination and effort for passenger safety. Installation works have begun since January 6, 2012 for the platform screen doors at 15 transfer and high-capacity stations. The doors at Minquan W. Rd. and Zhongxiao Xinsheng stations have been completed and started operation. Installation, testing and operation will be completed soon for the remaining 13 stations: Longshan Temple, Ximen, Guting,Chiang Kai-Shek Memorial Hall, Zhongxiao Dunhua, Jiantan, Dingxi, Xinpu, Gongguan, Tamsui, Zhongshan, Nangang and Banqiao stations in 2014.

The other high-capacity MRT stations, which do not have platform screen doors installed, were already equipped with Track Intrusion Detection System. This system is the first of its kind in the world, and was researched and developed in Taiwan. Using infrared detectors and Laser Measurement Sensors, this system can detect movement in the track area along the platforms, the tracks area around the platform end doors, the gaps between train and platform end doors, and beyond the platform warning strips. If a passenger steps into one of these areas, an alarm is activated, sending a warning to the control panel and triggering the speed dome camera to focus on the scene. On noticing this, station staff will rush to the scene immediately. In the track area, a traffic light, installed 150 meters from the platform end door, will turn red, warning the driver to slow down and watch out for any situations.

The Track Intrusion Detection System for a surface level station.
The Track Intrusion Detection System for a surface level station.
Detecting areas of the Track Intrusion Detection System.
Detecting areas of the Track Intrusion Detection System.

  • Hit: 22519
  • Updated: 2013-12-5 13:59
  • Reviewed: 2013-12-5 13:58

  • Source: Taipei Rapid Transit Corporation