Re: Signalling queries

[Eddie Oliver <eoliver@efs.mq.edu.au>]

"B." wrote:

> 
> Train Order:
>  signals etc...  The disadvantage is that there is a lot of reliance on
> humans not making a big cock up, which they did quite spectacularly at Mt
> Christie for example.

Yes, but the NSW version of train order working has many
software/hardware safeguards built in to minimise the likelihood of such
an incident - e.g. the location of a train is continually monitored by
GPS.

> 
> Basically with a plain track circuit the track is broken up into sections
> with insulated joints.

Except in jointless track circuits where there are not insulated joints.