Work east of Rooty Hill Station

 
  4206 Chief Commissioner

Location: Dorrigo yard
There's a bit of work going around east of Rooty Hill station, across from the Blacktown International Sports Park (GWS training grounds). A new turnout has been constructed on the up and some tracks are been assembled

Does anyone know what this work is about ???

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  clockman Station Master

There is something in the New South Wales section, Lynwood Quarry thread that mentions a siding at Rooty Hill to be constructed. Maybe this track work is for that.
  4206 Chief Commissioner

Location: Dorrigo yard
Many thanks for that
  awsgc24 Minister for Railways

Location: Sydney
Many thanks for that
4206
The Rooty Hill project involves bidirectional running down the Up Main (really the Slow) lines.

Prior to CBI (computer based interlockings) a big cost would have been the installation of a lot of cable from Blacktown to Rooty Hill.

With CBI , track circuits, signals, points, etc., are connected to the interlocking by a kind of "network" over a single pair of wires, and such a pair is bound to be found in the communications cables, which is bound to have a few spares.

The BiDi working eliminates the need for a ladder crossover from the Down Suburban (really the Fast) line across the USub to the UMain.

Should the quarry trains be Top-and-Tail with locos at both ends, the train could run from Blacktown to St Marys, where it would reverse to reach Rooty Hill, this eliminating the need for the BiDi signals.
  theanimal Chief Commissioner

The Rooty Hill project involves bidirectional running down the Up Main (really the Slow) lines.

Prior to CBI (computer based interlockings) a big cost would have been the installation of a lot of cable from Blacktown to Rooty Hill.

With CBI , track circuits, signals, points, etc., are connected to the interlocking by a kind of "network" over a single pair of wires, and such a pair is bound to be found in the communications cables, which is bound to have a few spares.

The BiDi working eliminates the need for a ladder crossover from the Down Suburban (really the Fast) line across the USub to the UMain.

Should the quarry trains be Top-and-Tail with locos at both ends, the train could run from Blacktown to St Marys, where it would reverse to reach Rooty Hill, this eliminating the need for the BiDi signals.
awsgc24
As I understand it, the working will NOT be bi-directional, rather  the train will proceed to St Marys, run round and enter the siding via a track release, similar to James Siding at Cooks River.
  Long end leading Beginner

As I understand it, the working will NOT be bi-directional, rather  the train will proceed to St Marys, run round and enter the siding via a track release, similar to James Siding at Cooks River.

Correct the train will proceed to St Marys, under Push Pull combination.  The Locomotives will be hard wired to each other via cable running between the wagons . The train will run into the old Rope's Creek branch, The crew will change ends and wait for their path to Rooty hill.
No Bi DI ,No Run-around
  awsgc24 Minister for Railways

Location: Sydney
Correct the train will proceed to St Marys, under Push Pull combination.  The Locomotives will be hard wired to each other via cable running between the wagons . The train will run into the old Rope's Creek branch, The crew will change ends and wait for their path to Rooty hill.
No Bi DI ,No Run-around
Long end leading

This of course would require next to no signalling changes which is always costly and slow.

Ground frames and electric releases are very simple.
  hmh Junior Train Controller

Some details from a document floating around:

- The Holcim Siding Rooty Hill will be connected to the Up main line at approximately 39.491Km via a trailing crossover.

- A hard-wired release push button will be provided at St Marys Signal Box to permit moves from the Siding to the Main Line. A release is not required for permitting moves from the Main Line to the Siding. The push button will be interfaced to the Microlok via the existing Dupline system.

- Two new shunt signals RH3 and RH4 will be provided for entry and exit to the siding respectively.

- A Points Cleared Board will be provided on the Up Main cess side to indicate to the driver where to stop to ensure the rear of the train is clear of shunt signal RH3. The board will be placed to allow for a train of 530m maximum length.


From the diagrams I've seen, it looks like trains will head east from Rooty Hill towards Doonside on the Up Main, clear the points of the new siding, then head into the sidings back west towards Rooty Hill
  awsgc24 Minister for Railways

Location: Sydney
Some details from a document floating around:

- The Holcim Siding Rooty Hill will be connected to the Up main line at approximately 39.491Km via a trailing crossover.

- A hard-wired release push button will be provided at St Marys Signal Box to permit moves from the Siding to the Main Line. A release is not required for permitting moves from the Main Line to the Siding. The push button will be interfaced to the Microlok via the existing Dupline system.

- Two new shunt signals RH3 and RH4 will be provided for entry and exit to the siding respectively.

- A Points Cleared Board will be provided on the Up Main cess side to indicate to the driver where to stop to ensure the rear of the train is clear of shunt signal RH3. The board will be placed to allow for a train of 530m maximum length.


From the diagrams I've seen, it looks like trains will head east from Rooty Hill towards Doonside on the Up Main, clear the points of the new siding, then head into the sidings back west towards Rooty Hill
hmh

A possible reason for the power signals and points in and out of the new  Rooty Hill siding (as compared to the old-fangled mechanical point rodding) is that with 60kg rail, the points are getting too stiff to work mechanically.

This may also explain why the down sidings at Singleton were converted from mechanical operation with an electric release to push button operated power points and signals.
  Indefatigable Assistant Commissioner

Location: Sydney
Went past the site this morning. The turnout is installed on the up local, along with about 100m of the headshunt and another turnout on the siding. The lineside is cleared for about 20m from the running lines, but I couldn't distinguish anything rail-related happening beyond the tree-line.

Anyone know when the rest of the works are due to be completed?

Cheers,
Ben
  Groundrelay Chief Commissioner

Location: Surrounded by Trolls!
Went past the site this morning. The turnout is installed on the up local, along with about 100m of the headshunt and another turnout on the siding. The lineside is cleared for about 20m from the running lines, but I couldn't distinguish anything rail-related happening beyond the tree-line.

Anyone know when the rest of the works are due to be completed?

Cheers,
Ben
Indefatigable

Any update?
  2LaGrange Train Controller

No PN trains to run into rootyhill until late 2014 so be awhile before completed.At the quarry loading point (Lynwood) all rail infrastructure is in place but signals into and out of siding are not commissioned yet.Similar time frame to complete loading bins,build crushing plants,excavate the actual quarry pit and build conveyors ect.Interestingly SSR have been using the lynwood site to load CRN ballast trains for canberra line re-sleepering project,the ballast is trucked in from another holcim quarry near by and loaded using front end loader.
  catchpoint Assistant Commissioner

Location: At the end of a loop
Any update?
Groundrelay

There was a a large digger and front-end loader on site at Rooty Hill this morning (7:30am approx) although I think these were still associated with the drainage works (willing to stand corrected) that have been going on for quite a while at the western end closer to the M7 overpass.

Some fabricated rails appear to have been also unloaded at the western end recently, given that they are pre-fabricated in part these readily look to be associated with future point construction within the sidings. (again willing to stand corrected)

Some sprayed grass seed has been applied (to tick some boxes) about the previously RailCorp built point at the eastern end to stabilise the topsoil in this location.

Regards,

Catchpoint
  Groundrelay Chief Commissioner

Location: Surrounded by Trolls!
Wait until next year then. Guess they'll just use the South/Cumberland line rather than the SSFL round about route.
  allambee Chief Train Controller

Any updates on construction progress at the Readymix-Cemex-Holcim gravel terminal?
Is the contractor at Rooty Hill the same that undertook work at Lynwood?
  catchpoint Assistant Commissioner

Location: At the end of a loop
Any updates on construction progress at the Readymix-Cemex-Holcim gravel terminal?
Is the contractor at Rooty Hill the same that undertook work at Lynwood?
allambee

Works are continuing albeit slowly alongside the rail corridor ( I cannot speak for what is happening on the rest of the site although from the brief glimpse you get through the trees as you pass by on the train it would seem works are occurring there as well.)

It appears previously observed drainage works have been completed and covered over.

The bridging works about the existing creek at the western (down) end has had the concrete wing walls poured and completed for some time and the pre-cast bridge decking sections are ready alongside having been stored on-site for some time.

Works in constructing a concrete blade wall along the southern boundary between the rail corridor and the unloading site are proceeding very slowly, it looks like a steel security fence of some kind will be installed atop of this wall to keep the local salivating artists out (if the walls of the adjacent M7 overpass are anything to go by it will be needed)

Railcorp signal troughs look like they will be fixed to the rail corridor side of this concrete wall. So there appears to be a degree of co-ordination required that may be slowing things...

A large pit with ramped access was dug in the centre of the site and concrete works have been on going, this looks to be the unloading point for the gravel onto a conveyor belt system for dispersion to the northern part of the site.

Some preliminary associated signal works for the shunt signals mentioned previously appear to have been installed about the already built lead from the (UP) eastern end, no other rail works appear to have been undertaken at this point.

Willing to stand corrected on any of the above or if anyone has further info.

No idea if the same contractor is being used at Rooty Hill as I have no idea who was the contractor at Lynwood

Hope this helps,

Regards,

Catchpoint
  Piston Train Controller

Sydney Trains Weekly Notice No 11 has stated that the Holcim Siding at Rooty Hill will be commissioned on Saturday 5th April 2014.

All points and signals will be brought into use. As for when the siding is actually used, I don't know.
  catchpoint Assistant Commissioner

Location: At the end of a loop
Spotted this morning

1 x PacNat 48 class (Freight Corp Blue - 48130? i think) and three or four hoppers standing in the siding, near the unloading point.

48 was shut down, obviously sent there to trial the siding and receiving shed for loading gauge?

Regards,

Catchpoint
  Raichase Captain Rant!

Location: Sydney, NSW
1 x PacNat 48 class (Freight Corp Blue - 48130? i think) and three or four hoppers standing in the siding, near the unloading point.
catchpoint

I understand last night a train was worked push-pull to St Marys and back to Rooty Hill, with the other loco running light back to Clyde/Chullora. Perhaps the loco/wagons there will also be used for crew training in coming days, training the workers in unloading of the wagons and how the equipment at the unloading point works?
  catchpoint Assistant Commissioner

Location: At the end of a loop
I understand last night a train was worked push-pull to St Marys and back to Rooty Hill, with the other loco running light back to Clyde/Chullora. Perhaps the loco/wagons there will also be used for crew training in coming days, training the workers in unloading of the wagons and how the equipment at the unloading point works?
Raichase


More than likely Raichase,

Just to clarify the stone wagons sighted are the RHKY type and are filled with gravel, there are only four (4) and the 48 class was 48130.

All are still in-situ at Rooty Hill as of this morning.

Regards,

Catchpoint
  Indefatigable Assistant Commissioner

Location: Sydney
An update: I went past this afternoon and the 48 and hoppers have left. The sidings are empty again.

Anyone know when regular services will commence?

Cheers,
Ben
  catchpoint Assistant Commissioner

Location: At the end of a loop
48130 and four (4) RHKY type hoppers were seen on the eastern side of the gravel unloading point this morning.

48130 also appeared to be running / idling.

The numerous covers to the conveyor system that runs from the unloading point back into the plant all appear to have been reinstalled, so assume that further testing / commissioning is taking place?

Although there are still some site works taking place at the western end of the siding with an excavator working on a motor vehicle level crossing.

For all the new work having been undertaken, the perimeter fencing from what you can see passing by in the rail corridor seems a bit haphazard and mismatched?

Hope this is of interest.

Regards,

Catchpoint
  catchpoint Assistant Commissioner

Location: At the end of a loop
Spotted this morning...

PN TT101 and TT103 top and tailed about a longish rake of RHKY hoppers.

The train was on the unloading siding with TT101 at the Country end and hoppers within the unloading shed. Several other RHKY (I recall it was two) hoppers were on the loop siding.

Unsure if the engines were operating or shut-down? Unsure of the number of RHKY hoppers that were in the rake

No "Stop" boards are noted either side of the unloading shed, so am assuming the locos are permitted to run through the shed and over the unloading screens to avoid having to uncouple?

Hope this is of interest,

Regards,

Catchpoint
  Indefatigable Assistant Commissioner

Location: Sydney
Thanks Catchpoint, I thought I saw some RHKYs in the run-around road going past on Friday night. Can't be far off operations now!

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