"Hong Kong 01" reported earlier that a train bound for Admiralty Station on the South Island Line of the MTR did not stop as usual when passing through Ocean Park Station.
The Legislative Council Subcommittee on Railway Matters will discuss the accident. The MTR submitted a document to the Legislative Council, revealing that before the train "flyed to the station", the previous train had actually experienced a malfunction and had to enter Ocean Park Station manually. .
The MTR said that after investigation, it was found that when the two trains before and after passing through Ocean Park Station, the wireless network signal was temporarily badly received, which prevented the trains from being able to connect smoothly with the trackside signal system. Manual operation.
The MTR continued to point out that when the train was manually controlled and switched back to the fully automatic train control mode, there was a problem with the conversion process, and in the end, in the accident, the train left the platform without dropping off passengers.
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MTR South Island Line train "Flying Station" brakes suddenly and then backs up passengers: it is dangerous to back up and return to the platform
The South Island Line is one of the few fully automated driverless trains in the region.
The MTR said that at about 1:10 pm on May 23, a train bound for Admiralty was not running smoothly near Ocean Park Station. Under the safety device, the train stopped briefly, and then the train service The control center authorized the train to enter the Ocean Park platform at a slow speed in manual control mode.
When the train enters the platform, the train operator opens the door in manual mode, arranges the passengers on the train to leave, and then the train returns to the depot for inspection.
At about 1:25, the next bus was also not running smoothly on the same road section, and it was changed to the manual control mode again.
When the train stopped at the parking spot on the platform of Ocean Park Station, the train control center instructed to return to the fully automatic train control mode, ready to let passengers get on and off, and did not open the door in manual mode like the previous train.
As a result, the train did not drop off passengers as normal, but moved forward, so the train control center and train staff stopped the train according to the procedure, and then arranged the train to return to the platform parking point at a slow speed in the fully automatic train control mode. guest.
Up to 19 minutes delay for 300 passengers affected
The trains affected by the accident involved about 300 passengers, with travel delays of up to 19 minutes.
After the MTR investigation, it was found that when the two trains passed the vicinity of Ocean Park Station, the wireless network signal reception was temporarily poor, which prevented the trains from being able to connect with the trackside signal system smoothly. Change to manual mode and drive into Ocean Park Station.
However, when the second train entered the platform in the manual control mode, since the time for the train to stop was later than the departure time of the train preset in the travel timetable on the system, the train reverted to a fully automatic train. In the control mode, the system will instruct the train to leave the platform at a slow speed according to the preset arrangement, and it will not pick up or drop off passengers as usual.
The MTR said that the accident did not affect the driving safety, and the wireless network equipment involved has been replaced, and the signal reception test will be carried out along the line.
At the same time, the MTR is preparing to install relevant wireless network signal equipment at appropriate locations to enhance network signal strength and improve signal reception capabilities.
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Introduce new technology to monitor the track range
In addition, the MTR has also developed innovative technologies in recent years to enhance railway services and safety.
The MTR said that it has applied optical radar, video detection and intelligent data analysis to monitor the conditions of the track in real time and detect the intrusion of foreign objects in the relevant sections of Ho Man Tin and Sha Tin.
The MTR said that it will be installed in about 80 open-air rail sections adjacent to roads, slopes or viaducts.
The MTR also pointed out that it is gradually introducing a real-time monitoring system for train overhead cables, which uses infrared and ultraviolet high-definition cameras to detect in real time whether there is a high temperature or arc at the interface between the pantograph and the overhead cable, so as to make follow-up and preventive maintenance.
Launch a LiDAR pilot program to detect whether passengers have illegal items such as LPG tanks
In addition, the EMSD and the MTR are studying to introduce a pilot project of the "LiDAR Object Detection System" at stations. When the system detects that a passenger with large luggage, bicycle or baby carriage may be using the escalator, it will send an alarm. Multimedia messages reminding passengers that lifts should be used.
The MTR is also testing the system at individual stations to detect illegal items in the station. If a passenger is detected to have entered the station with illegal items such as excessively long objects and LPG tanks, the system will notify the station staff.
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