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Re: Olympics service(?)
Actually, are all weekday Olympic Park services run by sector 2 rolling
stock? (since suburban cars used are almost always sector 2/blue target and
V sets are also maintained at Flemington (blue target))
Bill McNiven <wmcniven@gunzel.ozemail.com.au> wrote in message
ciGc4.750$oF2.2475@ozemail.com.au">news:ciGc4.750$oF2.2475@ozemail.com.au...
> Bill McNiven wrote in message ...
> >The story archived at
> >http://www.smh.com.au/olympics/news/19991220/A49708-1999Dec20.html
reports
> all kinds of stuff. (The rest of this is easier read in a fixed-width
font
> such as Courier New as it contains a few tables.)
>
> After the earlier postings on Sydney Olympics services, I thought I should
> dig out a few figures. These have come from various sources over the last
> year, so there are a few small inconsistencies.
>
> The Sydney "Suburban" fleet (including 'G' sets and the 2-car sets that
> wander to Newcastle and Wollongong) consists of approximately 1,218 cars,
of
> which around 89% are scheduled for daily service. Obviously this car
fleet
> is one constraint on the services to be operated during the Olympics.
>
> Equivalent
> Suburban Cars 8-car sets cars
> Timetable Requirement 135 1080 88.67%
> MainTrain 3 24 1.97%
> General Inspection 3 24 1.97%
> Refurbishment 3 24 1.97%
> Spare 2 18 1.48%
> Other 6 48 3.94%
> ----- ----- -----
> 152 1218 100%
>
> The equivalent figures for 'V' sets are ...
> Timetable Requirement 26 210 87.50%
> MainTrain etc. 3 30 12.50%
> ----- ----- -----
> 30 240 100%
>
> The timetable requirement is met by an assortment of 8, 6 and 2 car trains
> (counting two 4-car trains as one 8) ...
>
> trains cars
> Sector 1 (incl. Wollongong 'G', 'L')
> 8DD 20 160
> 6DD 8 48
> 2DD 2 4
> Sector 2
> 8DD 40 320
> 6DD 14 84
> Sector 3 (incl. Gosford 'G', 'K')
> 8DD 43 344
> 6DD 19 114
> 2DD 4 8
> Sector 4 (week days)
> 2DD 2 4
> ----- -----
> 152 1086
>
> Another constraint is track capacity. While the design target in the
1920's
> might have been trains every 3 minutes on every track, what is achieved
with
> double-deck loading times is a peak of 15 or 16 trains per hour on one
> track. The present p.m. peak-hour frequencies (in trains / hour) are
> approximately:
>
> WEST
> Mount Victoria etc. 4
> Penrith, Emu Plains 8
> Blacktown, Richmond 4
> Gosford etc. 4
> Epping, Hornsby (M) 8
> Liverpool 8
> Lidcombe - Bankstown 4
> ----
> 40
> FROM CITY OUTER
> East Hills, Campbelltown 10
> Bankstown 6
> -----
> 16
> FROM BONDI JCT.
> Hurstville, Waterfall, Cronulla 12
> Wollongong etc. 4
> -----
> 16
> OVER THE BRIDGE
> North Shore 10
> Gosford via North Shore 2
> ----
> 12
>
> What has been well-reheased at Olympic Test events is the concept that
there
> will be a dedicated Sydney Terminal / Olympic Park / Blacktown service
with
> 29 trains at 4' intervals, monopolising the Main Lines (and West Suburban)
> between Sydney and Blacktown. All other traffic will be squeezed onto the
> Local (Sydney - Homebush) and Suburban (and West Main) Sydney - Blacktown.
>
> From the "test events", I gather that there will be no attempt to run
> specific Hornsby - Olympic Park or Campbelltown - Olympic Park services.
At
> the Olympic Park end, any attempt to provide more than two (i.e. Sydney
from
> Plat. 1 and Blacktown from Plat. 4) services doesn't work when there are
big
> queues. From a network point of view, it's easier to say that every train
> from Campbelltown is "change at Granville for OP" and every train from
> Hornsby is "change at Strathfield for OP" than to try to advertise special
> (and risky) services.
>
> From my observations of some of the "practice events", TRACK CAPACITY WILL
> CONSTRAIN THE SERVICE TO THE WEST. If the down Main, Suburban and Local
> Lines each carry 16 trains per hour, and assuming Olympic Park gets the 16
> trains / hour seen at the Rugby League finals and similar Olympic Test
> Events, then the "regular" service to Strathfield will be reduced from the
> 40 trains / hour listed above to 32 or fewer. Of course, there's no need
to
> run any 6-car trains so the reduction in passenger capacity need not be
> quite so severe.
>
> The real bottleneck will be the Suburban between Homebush and Lidcombe -
> which means it may be worthwhile to terminate "Local" trains at Ashfield.
> It should be possible to divert a few Liverpool trains via Bankstown.
>
> A speculative evening peak in late September might feature (in trains /
> hour) ...
>
> WEST (75% of normal service)
> Olympic Park 16
> Mount Victoria etc. 3
> Penrith, Emu Plains 6
> Blacktown, Richmond 3
> Gosford etc. 3
> Epping, Hornsby (M) 6 (this is no change if 8 x 6DD become 6 x
> 8DD!)
> Liverpool 3 (plus 3 running express via Bankstown)
> Lidcombe - Bankstown 3
> Ashfield 3
> ----
> 46
> FROM CITY OUTER (81% of normal service)
> East Hills, Campbelltown 8
> Bankstown 5
> Diverted Liverpool 3
> -----
> 16
>
> Remembering that the ORTA press release suggested that normal School
> Holidays result in a 15% drop in loadings, this can probably be "sold" to
> Sydney residents and Olympic visitors if the "peak hour" is stretched from
> two hours 16:00 - 18:00 to four hours 15:00 - 19:00.
>
> How does this track-based estimate match the fleet?
>
> I have heard that no electric cars will be undergoing refurbishment during
> the Olympics, and that scheduled inspections will be scheduled away from
The
> Games.
>
> The fleet in September 2000 should be ...
>
> Equivalent
> Suburban Cars 8-car sets cars
> Timetable Requirement 146 1170 96.06%
> MainTrain 0
> General Inspection 0
> Refurbishment 0
> Spare 6 48 3.94%
> Other 0
> ----- ----- -----
> 152 1218 100%
>
> The equivalent figures for 'V' sets are ...
> Timetable Requirement 28 230 95.83%
> Spare 1 10 4.17%
> ----- ----- -----
> 30 240 100%
>
> My SPECULATION goes like this ...
> 1 The PR barrage which told Sydneysiders not to expect a train at 01:15 on
> New Year's Day is repeated and thus the "peak hour" is spread from 2 hours
> to 4 hours.
> 2 Illawarra suburban services lose an arbitrary 10% of their cars by
> reducing 10 8-car trains to 6 cars.
> 3 Sector 2 gets 80% of its train services and 85% of its cars. Services
to
> the West are reduced to 75% by running the normal service pattern, with
the
> intervals changed from 15/30 minutes to 20/40 minutes. Half the Liverpool
> trains are diverted via Bankstown.
> 4 Sector 3 gets 80% of its train services and 86% of its cars. Services
to
> the West are reduced to 75% by running the normal service pattern, with
the
> intervals changed from 15/30 minutes to 20/40 minutes. There are some
> reductions on the North Shore.
>
> The distribution of cars and sets would be something like ...
>
> trains cars
> Sector 1 (100% of services, 90% of cars)
> 8DD 10 80
> 6DD 18 108
> 2DD 2 4
> Sector 2 (80% of services, 85% of cars)
> 8DD 43 344
> 6DD 0 0
> Sector 3 (80% of services, 86% of cars)
> 8DD 49 392
> 6DD 0 0
> 2DD 4 8
> Sector 4 (15 trains / hour)
> 8DD 29 232
> ----- -----
> 155 1168
>
> Having gone through this thought process, I don't understand some of the
> "cuts" announced by ORTA on 20 December.
>
> Why cancel "Cumberland Line" trains when the bottlenecks are east of
> Granville and the City - Granville - Penrith & Liverpool trains will be
> packed?
>
> Why bustitute Lidcombe - Bankstown? Track capacity or rolling stock
> capacity? Or a fear of "flat junction" delays at Lidcombe?
>
> Does "regional Newcastle services will be closed" mean that it's worth
> replacing four 2DD trains with buses to scrape up the last 8DD set for
> Sydney?
>
> Thinking through the track constraints also reduces the impact of "a lack
of
> Millenium Trains". Adding another 80 cars to the fleet would allow normal
> services on the North Shore and the Illawarra (and the "Cumberland Line"?)
> but it wouldn't result in squeezing and extra train through the peak to
> Strathfield. Then, it might allow suburban cars to make extra trips to
> Gosford / Wollongong.
>
> I guess all will be revealed when "organisers finalise details of
timetables
> around June".
>
> Rgds
>
> Bill
>
> :-)
>
> PS: What happened to the 63 or so Tulloch trailers from "M" and "W" sets?
> Are they a strategic reserve somewhere or have they gone to some great
> aluminimum smelter in the sky?
>
> PPS: I haven't even thought about 'V' set cars and bustitution between
> Lithgow and Katoomba. That should be another contributor's task.
>
>