Author: bfsuleo

Foreigner amazed at China's high-speed train   [Copy link] 中文

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Post time 2015-7-23 18:11:34 |Display all floors
sfphoto Post time: 2015-7-23 17:28
The lightning strike disabled the signalling system the failure of which caused the accident. Wi ...

So many Chinese fast trains and millions of passengers face the risk of disaster if lightning strikes such equipment again.

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Post time 2015-7-23 18:47:30 |Display all floors
This post was edited by sfphoto at 2015-7-23 19:21
Newtown Post time: 2015-7-23 18:11
So many Chinese fast trains and millions of passengers face the risk of disaster if lightning stri ...

Most train accidents occur on SLOW-SPEED not HIGH-SPEED rail precisely due to either IN-BAND signalling or human failures on rail crossings. The IN-BAND signalling system based on track circuits which is currently deployed all over the world is dependent upon the knowledge and action of train operators to stop the train when a RED signal is given and to enter a track when a GREEN signal is given.

If there is a failure in the signalling system or a failure of humans to obey the signals, then that's when accidents occur.

The best way to avoid such accidents is to install and deploy an OUT-OF-BAND tracking system based on satellite tracking and wireless broadband networks which would allow a CENTRAL SYSTEM to force trains to stop independent of the train operators and the IN-BAND signalling system. If the OUT-OF-BAND tracking system fails, then a system-wide shutdown is commenced.


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Post time 2015-7-23 19:06:06 |Display all floors
Missed the quote about US railways, it mentions Sweden but the US?

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Post time 2015-7-23 19:07:02 |Display all floors
sfphoto Post time: 2015-7-23 17:28
The lightning strike disabled the signalling system the failure of which caused the accident. Witho ...

So should there not be a failsafe that halts trains after a lightning strike?

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Post time 2015-7-23 19:58:41 |Display all floors
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