Kilometreges for Wallerawang, Rydal, Tarana and a Profile if available

 
  gordon_s1942 Chief Commissioner

Location: Central Tablelands of NSW
I was wondering if anyone may have a profile for that section and what the location (Kilometrege) is of the junction between the single and double lines are at each end.
Next is to 'go look see' myself where the nearest marker post is on each end of the 'Long Straight' at Rydal.
A neighbour mentioned to me yesterday about a story I was told a few months ago of a proposal to put in a 'Crossing Loop' possibly at Rydal because its about the only straight bit of track more than a couple of hundred metres long in the section.
She mentioned it again yesterday along with the remark it would be ' A Kilometre long' and although I have looked, walked, driven and pee'd on it for the 50 years, I havent a clue of its exact length.

I dont know if this is just a 'Chinese whisper' sort of thing or there has been more said since I first heard about it a few months ago.

The neighbour gave me the impression having a Crossing Loop would be of some advantage to the Village but I cant see how and I pointed out to her that the current Level Crossing is sort of mid point in the 'Long Straight' and depending where a train stood, the noise of the diesels might not appreciated in the middle of the night plus the noise a train makes both stopping downhill and staring on a rising grade.

The whole thing may just be like so many 'Grand Plans', just idle rumour and wishful thinking.

PS, the one thing that has my interest if a Crossing Loop was installed, how would it affect the current Level Crossing??

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  Grantham Minister for Railways

Location: I'm with stupid!
There is a long straight above the crossing, it's around the 181km peg. I'll see if I can find a profile.
  Grantham Minister for Railways

Location: I'm with stupid!
If this link works, then you'll find Wallerawang on page 427, and can find your way around from there.

http://www.transport.nsw.gov.au/sites/default/files/b2b/railcorp/Curve_and_Gradient_Diagrams_V2-0_b.pdf

M
  gordon_s1942 Chief Commissioner

Location: Central Tablelands of NSW
Thank you very much for that information, it is everything I wanted and more.
I suspected something like this existed as Railways run on diagrams and reams of descriptions of what they have where, if you know where to look.
I am still digesting all the details and interpreting what they relate to but it proves one point that except for a very few hundred metres not connected together, it is a continuous climb from Tarana at 198.274 to a point about 181.000 (give or take a metre or three) then descends to Wallerawang at 171.261.

The almost last part of the UP rising Grade is this 'straight' that appears to be around a Kilometre long starting just West of Rydal at around 182.000?
  Grantham Minister for Railways

Location: I'm with stupid!
Yep. A crossing loop doesn't really need to be straight but I suspect they'd pick that straight stretch because it's not in cuttings. Many of the cuttings are narrow, and it would give any engineer a tizzy to suggest that you have double track in them and have 80' container wagons pass each other. Never mind that they used to, and still do in plenty of narrow double track cuttings!

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  gordon_s1942 Chief Commissioner

Location: Central Tablelands of NSW
After looking at the profile proved one thing which I suspected for years  is that the section has TWO rising Grades, one from Wallerawang to  approximately 179.800, the other is from Tarana to that same location with both being virtually continuous, ie your either going UP Hill or going Down Hill no matter which way your going.
The next problem is that this 'Straight' which is spot on a Kilometre long or near enough not to matter, is to me at the wrong place to be an effective crossing.
The current section is 27.013 kms long with the top of the rising grade 19.474km from Tarana and thats roughly where the proposed end of the Crossing Loop would be.
The speed boards show an average Maximum  of 80 Kph for UP freight trains but because of the rising Grade, I doubt many ever see half that speed but going West is a different matter once their on the Down Hill section.

Thanks again Grantham for that and I printed off the Tarana to Oberon section which I will give a copy to an ex ASM at Tarana.
  Grantham Minister for Railways

Location: I'm with stupid!
After looking at the profile proved one thing which I suspected for years  is that the section has TWO rising Grades, one from Wallerawang to  approximately 179.800, the other is from Tarana to that same location with both being virtually continuous, ie your either going UP Hill or going Down Hill no matter which way your going.
The next problem is that this 'Straight' which is spot on a Kilometre long or near enough not to matter, is to me at the wrong place to be an effective crossing.
The current section is 27.013 kms long with the top of the rising grade 19.474km from Tarana and thats roughly where the proposed end of the Crossing Loop would be.
The speed boards show an average Maximum  of 80 Kph for UP freight trains but because of the rising Grade, I doubt many ever see half that speed but going West is a different matter once their on the Down Hill section.

Thanks again Grantham for that and I printed off the Tarana to Oberon section which I will give a copy to an ex ASM at Tarana.
gordon_s1942
Uphill loaded goods trains often run at 40-50km/h, empties can usually do track speed. Even having the loop in the "wrong" place would considerably reduce waiting times. Speed of goods traffic is rarely anything to do with maximum possible speed, it's usually how long you wait for single track sections to clear!

A better place for a loop might be the older alignment on a 1/40 grade, from below Rydal to the bottom of the big horseshoe curve at Sodwalls. That would be closer to half way, but probably cost heaps more.


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  gordon_s1942 Chief Commissioner

Location: Central Tablelands of NSW
Either through Sodwalls to the East would be to me the more logical place.
You talk about 'sectional running times' and speeds and from working there during the steam to diesel days, 186 Goods with a 50 class hauling a load of mainly empty 'S' trucks destined for loading at Wallerawang with the engine becoming the Yard Shunter that day was tabled at around 50 minutes from Taran to Rydal but one morning it excelled itself by taking 90 minutes which got Control all hot an bothered.
The story the Crew gave was they had 'encountered ELEPHANT grass on the rails and lost traction'......
Oddly this was the only train that consistently reported that problem in the wee small hours of the morning.

The only reason it would be 'cheaper' to use the Long Straight is because the road is sitting almost on the same place as the Down Main was and as such would not need to be 'realigned' as other areas would.

Because from Day one they had no intention of utilising Rydal even to stop at, I wondered why the UP Main wasnt made the MAIN line removing it from the current platform and buildings like they have done at other places.

Would you believe our Mr Hill who implemented the change from Double to Single line considered reusing the old Single Line section between Sodwalls and Rydal passing over the old sandstone bridges ???

Now that would be a great place for a photo shoot !!!!!

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