Taipei Metro System is now the most important means of commuting in Taipei City. Any accident to the metro system during peak hours would seriously delay a large number of public commuters. Personnel intrusion of the railway track is a leading cause of such incidents. The Taipei Rapid Transit Corporation (TRTC) thus proposed the installation of PSDs in every station to prevent personal intrusion and guarantee the right to transportation for fellow commuters
The objective of this project was to construct half-height PSDs for 36 platform sides in Ximen and 14 other stations of Taipei Metro System. This project also involves changes to the Operation Control Center (OCC), passenger agent office (PAO), adjustments to the interfaces of structure, electric and mechanic (SEM) systems and provide related ancillary equipment.The 15 stations fitted with PSDs include Ximen (4 platform sides), Minquan West Road, Zhongxiao Xinsheng, Guting (4 platform sides), Longshan Temple, Chiang Kai-shek Memorial Hall (4 platform sides), Zhongxiao Dunhua, Jiantan, Dingxi, Xinpu, Gongguan, Tamsui, Zhongshan, Nangang, and Banqiao.
- Limited construction time：
PSD construction can only be implemented when metro services have been ended for the day. Construction hours were thus limited to only 4 hours per day during the night when construction work is even more challenging.
- 24 HR emergency response and handling：
In case of emergencies, service personnel must be present at the specified location within the specified time limit to provide troubleshooting or instructions to prevent the emergency from affecting train operations.
If the issue must be repaired by personnel working from the track area, the repair work can only be scheduled during late night when metro services have been ended for the day.
- Adopt to different environments：
Metro stations differ from each other. Design changes or adjustments must be made according to the actual environment of the station. Such differences include: platforms that are not perfectly plane or straight. There may also be differences in station thickness or height. Some stations may also contain steel plates being buried under the station platform.
- Transport difficulties：
Prevention of damage (impact, cracking) to the PSDs during transport, delivery, and installation must be considered.
According to international experience, PSD setup must also include safety considerations as well as capacities in maintaining the comfort and quality of the platform area to help reduce operational energy consumption. The following lists the benefits of setting up PSDs:
- Improve safety：
- The PSD will prevent accidents such as people and objects falling onto the track or in the gap between the train and platform, and serious passenger accidents.
- The PSD system will also help provide control and monitoring of unauthorized persons attempting to enter or leave the track areas.
- Reduce wind power：
The PSDs will help reduce the piston effect, preventing powerful winds generated by arriving trains from dragging commuters or causing them to fall over.
- Reduce energy consumption：
PSDs are able to prevent the loss of cold air from the station platform, improve air conditioning efficiency, and reduce energy consumption to achieve energy savings.
- Reduce trash：
PSDs can help prevent commuters from throwing garbage onto the train tracks and reduce the risk of fires.
- Reduce costs：
PSDs and signal systems can supplement each other, reducing the need for manual patrol of station platforms.
- Reduce noise：
PSDs can help act as a barrier against noise generated by train wheels rubbing against the railway tracks.
This PSD project not only ensured the right to transportation for the general public, but also allowed better use of information technology, reduced labor costs and achieved greater efficiency, improving public utilization of the metro system.
Taipei Rapid Transit Corporation