Hornsby Remodelling

 
  awsgc24 Minister for Railways

Location: Sydney
Several signals on the Shore lines from Waitara (inc) to Hornsby are being altered, relocated, etc.

The Down Shore Home signal located on the straight looks as if it is being replaced by a similar signal at the end of the 200m radius curve, near the points and scissors crossovers.

SH14.93 auto signal on the approach to Waitara station is being replaced by a new signal about 100m towards Gordon.

There are also some changes to Up Shore signals.

Near Platforms 1 & 2, concrete foundations have been installed, probably for some kind of wall to protect the piers of the building on the concourse level in case of derailments, like many similar protection walls installed post Granville (Bold St) accident.

The above work is only a fraction of the work planned for the crossover between the platforms and the Bridge Street bridge, north of Hornsby. This requires a two week of so closedown. Some new OHW structures are being built.

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  awsgc24 Minister for Railways
  AndyV Station Master

Signalling changes are planned between Waitara through to Asquith.

Any idea when the 2 week shut down will be? Original plans said January 2018 but that was when construction was meant to commence in 2016.

I notice parts of Hornsby Yard are advertised as under possession with no overhead power from this Friday through to 15/01/2018.
  awsgc24 Minister for Railways

Location: Sydney
At present, there is one Up Automatic signal between Hornsby and Waitara, located at the ~400m overlap from Waitara station.

Two new Up Auto signals (covered in bags) have been installed in the section, the first perhaps 200m clear of the scissors crossover, and the second at the ~200m overlap from Waitara station.

It is not possible to say if the existing Up Auto stays or will be removed.

Either way Up headway from Hornsby to Waitara will be improved.
  awsgc24 Minister for Railways

Location: Sydney
The two lifts at the eastern end of the new footbridge are now operational.

The lifts can carry 21 persons up to a load of 1600 kg.
  Festivus Station Master

Location: Sydney, Australia
I had a chat to one of the local CSAs a few weeks back about the remodelling. He indicated that its all about getting more tph through the shore. Not unreasonable. He was pessimistic about whether the remodelling and new signalling between Hornsby and Waitara would achieve the tph goal he had heard was being sought.

Made me wonder if the desired tph increase is all about ensuring Chatswood doesnt overcrowd in the peak once the NW Metro starts operating.
  awsgc24 Minister for Railways

Location: Sydney
He was pessimistic about whether the remodelling and new signalling between Hornsby and Waitara would achieve the tph goal he had heard was being sought.

Made me wonder if the desired tph increase is all about ensuring Chatswood doesn't overcrowd in the peak once the NW Metro starts operating.
Festivus
Having more signals between Hornsby and Waitara would increase capacity.

Having the Shore to Main North crossovers replaced with higher speed crossovers further away (an overhap's worth) from the platform should eliminate the excruciating 8km/h arrival into platform 2.

Having a new centre turnback between Down and Up Shore provides more consistent use of P2 (arrivals) and P1 (departures) which reduces the need to use the 8km/h scissors crossovers. The 10 chain curve just south of Hornsby has a 40km/h speed limit.

Overall the new layout is a significant improvement.
  awsgc24 Minister for Railways

Location: Sydney
He was pessimistic about whether the remodelling and new signalling between Hornsby and Waitara would achieve the tph goal he had heard was being sought.

Made me wonder if the desired tph increase is all about ensuring Chatswood doesn't overcrowd in the peak once the NW Metro starts operating.
Having more signals between Hornsby and Waitara would increase capacity.

Having the Shore to Main North crossovers replaced with higher speed crossovers further away (an overhap's worth) from the platform should eliminate the excruciating 8km/h arrival into platform 2.

Having a new centre turnback between Down and Up Shore provides more consistent use of P2 (arrivals) and P1 (departures) which reduces the need to use the 8km/h scissors crossovers. The 10 chain curve just south of Hornsby has a 40km/h speed limit.

Overall the new layout is a significant improvement.

See existing layout: http://www.sa-trackandsignal.net/Pdf%20files/Sydney/RC2304.pdf
  AndyV Station Master

Made me wonder if the desired tph increase is all about ensuring Chatswood doesnt overcrowd in the peak once the NW Metro starts operating.
Festivus

Yes - the project will help by redistributing North Shore passengers across more trains to reduce crowding.

The Hornsby remodelling will increase capacity out of Hornsby from 12 trains per hour to 16.

From Chatswood to the city the max capacity is 20 tph. That would allow another 4 trains to be slotted in starting from Gordon/Lindfield/Chatswood (assuming the Hornsby figure also includes the trains starting from Berowra and the Central Coast).
  simstrain Chief Commissioner

From Chatswood to the city the max capacity is 20 tph. That would allow another 4 trains to be slotted in starting from Gordon/Lindfield/Chatswood (assuming the Hornsby figure also includes the trains starting from Berowra and the Central Coast).
AndyV

Only Gordon and Lindfield would have starters as Chatswood does not have any terminating platforms.
  theanimal Chief Commissioner

From Chatswood to the city the max capacity is 20 tph. That would allow another 4 trains to be slotted in starting from Gordon/Lindfield/Chatswood (assuming the Hornsby figure also includes the trains starting from Berowra and the Central Coast).

Only Gordon and Lindfield would have starters as Chatswood does not have any terminating platforms.
simstrain
Do you mean terminal (i.e. dead end) platforms?
  Matthew Train Controller

Only Gordon and Lindfield would have starters as Chatswood does not have any terminating platforms.
Do you mean terminal (i.e. dead end) platforms?
theanimal
At Chatwood, just how could you turn a train back fast enough ?. It would be near impossible to turn a train around in under 2.5 minutes. Relay drivers may help, but they would have to abandon the practice of walking through the train and shooing off all the passengers. It would almost be cut out, new driver cuts in and almost immediately bell out and take the crossover before the next train gets held at a signal waiting for the departing train to clear the crossover.

Possible but there is no scope for error.
  georges Train Controller

At Chatwood, just how could you turn a train back fast enough ?. It would be near impossible to turn a train around in under 2.5 minutes. Relay drivers may help, but they would have to abandon the practice of walking through the train and shooing off all the passengers. It would almost be cut out, new driver cuts in and almost immediately bell out and take the crossover before the next train gets held at a signal waiting for the departing train to clear the crossover.

Possible but there is no scope for error.
Matthew
Chatswood Platforms 2 and 3 soon to become Light Rail Platforms? Would make turning back trains even more difficult?
  simstrain Chief Commissioner

From Chatswood to the city the max capacity is 20 tph. That would allow another 4 trains to be slotted in starting from Gordon/Lindfield/Chatswood (assuming the Hornsby figure also includes the trains starting from Berowra and the Central Coast).

Only Gordon and Lindfield would have starters as Chatswood does not have any terminating platforms.
Do you mean terminal (i.e. dead end) platforms?
theanimal

No. I mean that chatswood (post metro conversion) will have no where to terminate a train from Sydney and then return it to the city. At the moment that can be done on platform 3 but that will not be available after metro is operational.
  simstrain Chief Commissioner

The whole point of the hornsby makeover is to fix the speed of trains into and out of platforms 1 and 2. It has nothing at all to do with 20tph post metro since that could be achieved by utilising the third platforms at lindfield and gordon just as easily.
  theanimal Chief Commissioner

Only Gordon and Lindfield would have starters as Chatswood does not have any terminating platforms.
Do you mean terminal (i.e. dead end) platforms?
At Chatwood, just how could you turn a train back fast enough ?. It would be near impossible to turn a train around in under 2.5 minutes. Relay drivers may help, but they would have to abandon the practice of walking through the train and shooing off all the passengers. It would almost be cut out, new driver cuts in and almost immediately bell out and take the crossover before the next train gets held at a signal waiting for the departing train to clear the crossover.

Possible but there is no scope for error.
Matthew
how do you walk through a Tangara or Millennium set without detraining - entraining?
  tazzer96 Deputy Commissioner

how do you walk through a Tangara or Millennium set without detraining - entraining?
theanimal
You can do it by using the front cab doors.
  Clyde Goodwin2 Chief Train Controller

how do you walk through a Tangara or Millennium set without detraining - entraining?
You can do it by using the front cab doors.
tazzer96
NO you cannot,they are only for emergency access.
  theanimal Chief Commissioner

how do you walk through a Tangara or Millennium set without detraining - entraining?
You can do it by using the front cab doors.
tazzer96
You speak with all the certitude of a complete lack of knowledge.
  tazzer96 Deputy Commissioner

how do you walk through a Tangara or Millennium set without detraining - entraining?
You can do it by using the front cab doors.
NO you cannot,they are only for emergency access.
Clyde Goodwin2
I know that, but it still is possible.   Its not like trains in brisbane or melbourne where it is completely impossible to do it.

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