Re: [NSW] Three CityRail questions

["Tezza" <tezza2000@dingoblue.net.au>]

"Hubert Lam"
| "Dave Proctor"
| : "Bradley Torr"

| : > (1) Why are many down trains on the Bankstown line that are scheduled
to
| : > proceed to the City Circle via Lidcombe timetabled to stand at
Bankstown
| : > station for around twelve minutes, while trains scheduled to proceed
to
| : > Liverpool don't have such a lengthy standing time?
| :
| : Those doing the loop are generally locked into a circular route - and as
the
| : Bankstown Circle takes just under two hours, the twelve minute waiting
time
| : is there so as to put the train onto a regular interval service (every
30
| : minutes, I believe).
|
| Also acts as recovery time that the train might lose whilst going around
the
| Bankstown circuit. This standing time was previously at Strathfield, where
| Homebush customers complained about the long long wait. So instead of
having
| that at Strathfield, CityRail moved it to Bankstown, where it might not
| inconvenience other passengers as much.

Some still sit at Strathfield.



| : > (3) Why is it that, while travelling along in a train (particularly
the
| : > pre-Tangara sets), ocasionally most of the lights and the air
conditioning
| : > will cut out for a short period, and then suddenly start back up
again?
| :
| : An air-gap in the o/h wiring - it is a section insulator, used so that
they
| : can switch off the power in one part of the OHLE without affecting other
| : lines (used for maintenance purposes) - this is mainly when the
pantograph
| : hits one of them. You can see them in the OHLE, mainly near junctions.
| :
|
| That happens a lot over the Strathfield flyover on the up line, and on the
| approach to Burwood station on the up suburban. What is the explanation
| there, apart from a huge air gap??? (which I believe there is none).

Could be pan bounce.