‘Lack of rail capacity’ blamed for 220 extra trucks from Dunmore quarry
Boral is blaming a lack of rail infrastructure for a push to dump road transport limits from its Dunmore quarry, for an extra 220 truck movements per day.
just doing some calculations it would require 12 x 45 wagon train movements a day.The 400m crossing loop at Albion Park is shorter than normal because some of its length is lost to provide catchpoint and departure signal about 80m away from end of loop. This allows for simultaneous arrivals with Left Hand Runnings.
45x13.5.....+66=674m. So, too long for Dapto(650m), too long for Enfield, too long for St Peters and certainly too long for Dunmore Quarry. NRC could run around at Dunmore with 2x DL and 15 wagons, so roughly 275m and nothing has changed down there, since.just doing some calculations it would require 12 x 45 wagon train movements a day.The 400m crossing loop at Albion Park is shorter than normal because some of its length is lost to provide catchpoint and departure signal about 80m away from end of loop. This allows for simultaneous arrivals with Left Hand Runnings.
If this length of about 350m is shorter than the length of the engine(e) + 45 wagons, then crossings become problematic.
Albian Park loop should be extended, with higher speed loop turnouts (say X80), to improve things for the ballast trains.
See: http://www.sa-trackandsignal.net/Pdf%20files/Sydney/RC2419.pdf
The length of the Dapto crossing loop is also unclear.
Several other loops on the line are 650m in length.
Perhaps the capacity problem would be reduced if all loops were lengthened to say 650m.
Some sections of line have intermediate block signals for closer following moves on the single line sections.
What exactly is the length in metres of a train with engine(s) and 45 wagons?
What size train can the Dunmore Quarry handle?
These dimensions are conspicuous by their absence.
Website http://www.sa-trackandsignal.net does not have any diagrams of Dunmore Quarry; curses.What exactly is the length in metres of a train with engine(s) and 45 wagons?45x13.5.....+66=674m. So, too long for Dapto(650m), too long for Enfield, too long for St Peters and certainly too long for Dunmore Quarry. NRC could run around at Dunmore with 2x DL and 15 wagons, so roughly 275m and nothing has changed down there, since.
What size train can the Dunmore Quarry handle?
These dimensions are conspicuous by their absence.
What exactly is the length in metres of a train with engine(s) and 45 wagons?45x13.5.....+66=674m. So, too long for Dapto(650m), too long for Enfield, too long for St Peters and certainly too long for Dunmore Quarry. NRC could run around at Dunmore with 2x DL and 15 wagons, so roughly 275m and nothing has changed down there, since.
What size train can the Dunmore Quarry handle?
These dimensions are conspicuous by their absence.
http://www.sa-trackandsignal.net mightn't but http://www.signaldiagramsandphotos.com has some that might assist you. The link is one example of Dunmore:Website http://www.sa-trackandsignal.net does not have any diagrams of Dunmore Quarry; curses.What exactly is the length in metres of a train with engine(s) and 45 wagons?45x13.5.....+66=674m. So, too long for Dapto(650m), too long for Enfield, too long for St Peters and certainly too long for Dunmore Quarry. NRC could run around at Dunmore with 2x DL and 15 wagons, so roughly 275m and nothing has changed down there, since.
What size train can the Dunmore Quarry handle?
These dimensions are conspicuous by their absence.
Does the Dunmore have any level crossings still near its entrance from the Shellharbour loop?
Street-Directory Map: http://www.street-directory.com.au/?x=150.83945295473467&y=-34.60735287321815&l=14 shows double tracks and loops.Website http://www.sa-trackandsignal.net does not have any diagrams of Dunmore Quarry; curses.http://www.sa-trackandsignal.net mightn't but http://www.signaldiagramsandphotos.com has some that might assist you. The link is one example of Dunmore:![]()
http://www.signaldiagramsandphotos.com/mywebpages/nsw/Illawarra/dunmore09112011.pdf
It might be throwing 404 Errors for Victorian diagrams but it still has viable links for SA, NSW and WA
Neil
Reading between the lines I get the feeling their complaint is not about line capacity as such, but more to do with the fact that their current rail operator PN has insufficient rolling stock to meet demand and Boral are too tightarsed to invest in new assets i.e. wagons, or provide PN with a contract of sufficient length to justify investment in new wagons.Yes, I agree the lack of capacity is at the receival end of the supply chain.
Much easier to get the taxpayer to pick up the tab and beat the roads into submission.
http://www.sa-trackandsignal.net mightn't but http://www.signaldiagramsandphotos.com has some that might assist you. The link is one example of Dunmore:
http://www.signaldiagramsandphotos.com/mywebpages/nsw/Illawarra/dunmore09112011.pdf
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