Re: News & Discussion: Adelaide Metro Trains
Posted: Fri May 15, 2020 10:45 am
At least the new 25KV electrification is far superior of that in Sydney and Melbourne that run 15KV systems.
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https://mail.sensational-adelaide.com/forum/viewtopic.php?t=1327
Not quite. Electric services started on most lines in 1919-1923. https://prov.vic.gov.au/about-us/our-bl ... rificationChillyPhilly wrote: ↑Thu May 14, 2020 11:34 pmTo think Melbourne electrified its rail network in 1904!
1500V DC.
SA started talking about electrifying the trains around 1914, at the same time the trams were electrified.PD2/20 wrote: ↑Fri May 15, 2020 11:35 amNot quite. Electric services started on most lines in 1919-1923. https://prov.vic.gov.au/about-us/our-bl ... rificationChillyPhilly wrote: ↑Thu May 14, 2020 11:34 pmTo think Melbourne electrified its rail network in 1904!OlympusAnt wrote:Our pee wee train system is a mess. Should have been electrified decades ago and instead they go for retrofitting diesels and 2/3 of them are out of service. It then costs more money to fix them and they'll just fail again.
Then again the electrics have had their fare share of issues.
So roughly 100 years from idea to execution, given Seaford electrification completed in 2014. Going off that schedule, since we started talking about underground rail in the 1970s, we're probably 50 years away from actually getting it doneSBD wrote: ↑Fri May 15, 2020 11:43 amSA started talking about electrifying the trains around 1914, at the same time the trams were electrified.PD2/20 wrote: ↑Fri May 15, 2020 11:35 amNot quite. Electric services started on most lines in 1919-1923. https://prov.vic.gov.au/about-us/our-bl ... rificationChillyPhilly wrote: ↑Thu May 14, 2020 11:34 pmTo think Melbourne electrified its rail network in 1904!
It was apparently proposed to the Royal Commission on Transport in 1949, as part of the railways electrification scheme.SRW wrote: ↑Fri May 15, 2020 12:42 pmSo roughly 100 years from idea to execution, given Seaford electrification completed in 2014. Going off that schedule, since we started talking about underground rail in the 1970s, we're probably 50 years away from actually getting it doneSBD wrote: ↑Fri May 15, 2020 11:43 amSA started talking about electrifying the trains around 1914, at the same time the trams were electrified.PD2/20 wrote: ↑Fri May 15, 2020 11:35 am
Not quite. Electric services started on most lines in 1919-1923. https://prov.vic.gov.au/about-us/our-bl ... rification
The rolling stock design speed is not the only factor that determines the operating speed of trains. Signalling, braking distances and track restrictions also determine safe operating speeds. Railway systems such as the AdMet network which have evolved over 150 years are more subject to such speed restrictions than systems that have been recently constructed to modern design standards.
Why do you think they are they better than everyone else who had to line up at centrelink.Brucetiki wrote:Such as refusing to offer any assistance to government enterprise workers out of work due to COVID 19 but ineligible for JobKeeper.
Yep, I'm sure people will remember things like this.
Well, yes, but none of that is relevant to the traction voltage, which was claybro's point.PD2/20 wrote: ↑Fri May 15, 2020 5:36 pmThe rolling stock design speed is not the only factor that determines the operating speed of trains. Signalling, braking distances and track restrictions also determine safe operating speeds. Railway systems such as the AdMet network which have evolved over 150 years are more subject to such speed restrictions than systems that have been recently constructed to modern design standards.
Agree re the Gawler line Norman, but this is surely an argument for amalgamation of stations on other lines. Not much point as Rubberman points out of spending billions on nation leading power, and great rolling stock if it is not going to be used to advantage. As for Seaford, it's a while since I have ridden that line, but even after electrification, I don't believe the train I was on achieved anywhere near 110km/h... maybe 90 at most, but maybe it's improved?Norman wrote: ↑Fri May 15, 2020 10:45 pmI think the Gawler Line will see many of the benefits electrification can bring since the stations are a bit more spread out and the track is straighter.
There are parts on the Seaford line that are rated at 110km/h, including near Oaklands and the extension beyond Noarlunga.
The Gawler eletrification should also come with some modest line upgrades like crossing loops and station removals. We should be aiming for 160kph for an express lineNorman wrote: ↑Fri May 15, 2020 10:45 pmI think the Gawler Line will see many of the benefits electrification can bring since the stations are a bit more spread out and the track is straighter.
There are parts on the Seaford line that are rated at 110km/h, including near Oaklands and the extension beyond Noarlunga.
Agreed. The locations of some of these stations is bizarre to say the least.Goodsy wrote: ↑Sat May 16, 2020 1:35 pmThe Gawler eletrification should also come with some modest line upgrades like crossing loops and station removals. We should be aiming for 160kph for an express lineNorman wrote: ↑Fri May 15, 2020 10:45 pmI think the Gawler Line will see many of the benefits electrification can bring since the stations are a bit more spread out and the track is straighter.
There are parts on the Seaford line that are rated at 110km/h, including near Oaklands and the extension beyond Noarlunga.
Remove Greenfields, Parafield Gardens, Chidda, Nurlutta, Elizabeth South
New station at the A20 overpass to replace Tambelin and Evanston stations
Remove Kudla and replace it with a new station at Gordon Rd
Crossing loops where needed
At this point in time, 160km/h is excessive for a city the size of Adelaide. The extra costs for track maintenance and rolling stock wouldn't stack up the benefits for the 5 or 6 express trains that run in each direction. If those centres of Salisbury, Elizabeth and so on become more dense then it might be a point of discussion.Goodsy wrote:The Gawler eletrification should also come with some modest line upgrades like crossing loops and station removals. We should be aiming for 160kph for an express lineNorman wrote: ↑Fri May 15, 2020 10:45 pmI think the Gawler Line will see many of the benefits electrification can bring since the stations are a bit more spread out and the track is straighter.
There are parts on the Seaford line that are rated at 110km/h, including near Oaklands and the extension beyond Noarlunga.
Remove Greenfields, Parafield Gardens, Chidda, Nurlutta, Elizabeth South
New station at the A20 overpass to replace Tambelin and Evanston stations
Remove Kudla and replace it with a new station at Gordon Rd
Crossing loops where needed