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Hong Kong Metro Collision Report Investigation Panel Report [pdf]

• deleted 7y ago
  [deleted]
• pwinnski 7y ago
  In this case, two non-passenger trains collided. I've been on some incredibly crowded trains on the Tsuen Wan line, so the signaling needs to be spot-on every single time.
  • csomar 7y ago
    Not only crowded but if you noticed the trains are mega long. Like really long if you are in the middle you can't see the front or the back.
• deleted 7y ago
  [deleted]
• Animats 7y ago
  That is a strange signaling system design. Most older train control systems have their configuration data in the wayside units in read-only form. In relay-based systems, it's hard-wired. In older electronic systems, it's in a ROM, which has to be physically replaced to change the configuration. Since the railroad tracks and switches have to be changed in a configuration change, changing the ROM is rarely done. Why are they transferring "conflict data" from one computer to another? "To prevent recurrence of similar incident due to the same causes, the Panel recommended ATDJV to: (a) replace the software design and development team causing the software issue"
  • twic 7y ago
    Does it also depend on the trains? Things like how long they are, or how fast they can accelerate?