Train crashed in Hong Kong due to (CBTC) signal issues(straitstimes.com) |
Train crashed in Hong Kong due to (CBTC) signal issues(straitstimes.com) |
The only surprise I read was that they consider the CBTC signal system as outdated and in need of replacement. In fact, it might've been here where I read an article about how New York (or perhaps Chicago) should switch to CBTC, but can't for a number of legacy reasons.
Most of the Hong Kong MTR lines use an older implementation of CBTC which doesn't support fullly unattended operation, which is why they are looking to upgrade. New York is in the process of implementing CBTC on some lines, but their implementation won't support fully unattended operation either.