Re: [NSW] - hilarious SMH article

[David Johnson <trainman@ozemail.com.au>]

Tezza wrote:

> "David Burns" <dpburns@veal.optushome.com.au> wrote in message
> > One of the biggest changes may be allowing trains to sit at stations for longer than
> > the current 60-second limit to take pressure off drivers and lessen mistakes.

If trains sit at stations for 60 seconds, they must move pretty fast from Granville to Clyde!  They are due to depart Clyde 60 seconds
after departing from Granville, giving a running time of 0 seconds between the two.

> What mistakes? :-) Most trains only sit at a station for 20 to 30 seconds, but increasing the dwell times will allow trains to catch
> up from the too short running times.

Bondi Junction to Central:
6.757 kms in 10 minutes with 4 intermediate station stops - Average speed 40.542 km/h
If you say 30 seconds for each station stop, subtract 2 minutes, your average speed has to increase to 50.6775 km/h while moving.  With
a line speed of 60 km/h, this is not possible.

> The NSR timetable added stops without increasing the overall running time. Glenfield to
> Campbelltown was actually attainable uner the Olympic TT.

12 May timetable:
12.789 kms in 14 minutes with 4 intermediate station stops - Average speed 54.81 km/h.
If you say 30 seconds for each station stop, subtract 2 minutes, your average speed has to increase to 63.945 km/h while moving.

Olympic timetable:
12.789 kms in 16 minutes with 4 intermediate station stops - Average speed 47.95875 km/h.
If you say 30 seconds for each station stop, subtract 2 minutes, your average speed has to increase to 54.81 km/h while moving.

> > Extra stopping times at major stations, especially
> > the city circle, where some drivers waited for more than three minutes;
>
> The City Circle is usually Ok, except Town Hall during the peaks.

Yep.  During the Olympics, the 4 minutes from Circular Quay to Wynyard and 4 minutes Wynyard to Town Hall was ludicrous!

--
David Johnson
trainman@ozemail.com.au
http://www.ozemail.com.au/~trainman/
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