I believe the Gallipoli Underpass is engineered for only 60km and not more.drsmith wrote:The Western Ring Road image above to me looks like it has an emergency stopping lane although to be honest, I wouldn't like to be broken down there and unable to climb the wall to escape potential stray vehicles doing 100 km/h.
The Torrens to Torrens trench doesn't appear to have emergency stopping lanes from the video animation. Another factor in relation to the posted speed limit is the ramps. Longer ramps would be required for acceleration/deceleration with higher speed and in regards to that, stopping distance increases in proportion with the square of the speed.
[U/C] M2 North-South Motorway
- ChillyPhilly
- Super Size Scraper Poster!
- Posts: 2567
- Joined: Sun Dec 07, 2008 11:35 pm
- Location: Kaurna Land.
- Contact:
[U/C] Re: News & Discussion: South Road / North-South Corridor
Our state, our city, our future.
All views expressed on this forum are my own.
All views expressed on this forum are my own.
[U/C] Re: News & Discussion: South Road / North-South Corridor
Well, they probably need to modify the entry and exit paths of the underpass anyway.
-
- Super Size Scraper Poster!
- Posts: 1747
- Joined: Tue Sep 04, 2007 10:32 pm
- Location: ADL ex DRW, ASP, MGB
[U/C] Re: News & Discussion: South Road / North-South Corridor
That is possibly so, but if you compare that to the Goodwood Road underpass, which certainly feels ok at 60km/hr, it's probably a very conservative design.ChillyPhilly wrote: I believe the Gallipoli Underpass is engineered for only 60km and not more.
-
- Sen-Rookie-Sational
- Posts: 44
- Joined: Mon Jan 10, 2011 10:57 am
[U/C] Re: News & Discussion: South Road / North-South Corridor
I think 60km/h for the Gallipoli underpass is definitely conservative.
Drove past T2T yesterday, looks like the remaining properties on the corner of South & Grange Rds have been acquired.
Drove past T2T yesterday, looks like the remaining properties on the corner of South & Grange Rds have been acquired.
-
- Legendary Member!
- Posts: 522
- Joined: Sun Aug 26, 2012 10:54 am
- Location: Morphett Vale
[U/C] Re: News & Discussion: South Road / North-South Corridor
I would assume 100 is more than possible safely through the underpass. But for trucks using the ramps, 60 is probably the fastest they can slow down safely at, hence the 60 design speed.
Looking forward to a free-flowing Adelaide!
- ChillyPhilly
- Super Size Scraper Poster!
- Posts: 2567
- Joined: Sun Dec 07, 2008 11:35 pm
- Location: Kaurna Land.
- Contact:
[U/C] Re: News & Discussion: South Road / North-South Corridor
I'm no engineer, but is the gradient of the Gallipoli Underpass permissive for speeds over 60 k's an hour?
Our state, our city, our future.
All views expressed on this forum are my own.
All views expressed on this forum are my own.
[U/C] Re: News & Discussion: South Road / North-South Corridor
The Funeral home has a sign up saying relocating in August. They must be the last ones to go.
[U/C] Re: News & Discussion: South Road / North-South Corridor
I'm no engineer either, but I would certainly say so. Compare the gradient of the Goodwood Underpass with no emergency stopping lanes and bridge pylons in the middle of the through fare, to the gradient of the Gallipoli Underpass, with a single deck bridge span and emergency stopping lanes. Both have 60kph speed limits. I think it's fair to say you can easily do 80kph. I don't know about 90 or 100, though?
Any views and opinions expressed are of my own, and do not reflect the views or opinions of any organisation of which I have an affiliation with.
[U/C] Re: News & Discussion: South Road / North-South Corridor
If you enter the underpass at 60kph, and don't ride the break(in an auto), you're going to hit 70-80kph anyway. I do it everytime unless there's a cop around.
Hit the accelerator and I'm cruising through there at 90 with no worries.
The biggest problem is the idiots who panic and struggle because they are heading downwards. They then hit the up slope of the underpass and forget they have to use their accelerator. Which if you are doing 70-80-90...you take your foot off the accelerator and by the time you reach ground level again you're doing around 60.
It'll be crap if the government place a speed camera in there though.
Hit the accelerator and I'm cruising through there at 90 with no worries.
The biggest problem is the idiots who panic and struggle because they are heading downwards. They then hit the up slope of the underpass and forget they have to use their accelerator. Which if you are doing 70-80-90...you take your foot off the accelerator and by the time you reach ground level again you're doing around 60.
It'll be crap if the government place a speed camera in there though.
[U/C] Re: News & Discussion: South Road / North-South Corridor
Looking further down the track with this corridor, things will certainly be interesting heading south of the Torrens to Torrens section. The newley completed Brickworks will require access, and the recently developed community centre on the opposite corner. Hmm, do we demolish the new entry to brickworks, and a community centre less than 3 years old....or do we knock over the pub on the opposite side?? Goes to show the stupidity of not having a clear path secured for the last decade or so since this was decided to be the major North/South route.Interesting times.
[U/C] Re: News & Discussion: South Road / North-South Corridor
Actually, I suspect that from where the Torrens to Torrens ends just before the Torrens River, to the bit before the Ashwin Parade intersection, will be the entry point for a tunnel portal for this particular section of the North South Motorway. This means they would have to take out part of the cemetery and all the industrial warehouses on the block between South Road and Ware Street (the eastern side) between the Torrens River Ashwin Parade. The Torrens River might have to be slightly re-rerouted to the north to allow for the gradient, but I think there should be enough lead in after crossing the river to Ashwin Parade.claybro wrote:Looking further down the track with this corridor, things will certainly be interesting heading south of the Torrens to Torrens section. The newley completed Brickworks will require access, and the recently developed community centre on the opposite corner. Hmm, do we demolish the new entry to brickworks, and a community centre less than 3 years old....or do we knock over the pub on the opposite side?? Goes to show the stupidity of not having a clear path secured for the last decade or so since this was decided to be the major North/South route.Interesting times.
All through Thebarton and Mile End - most of the properties on South Road are heritage listed. It would be political suicide to demolish these, hence the only option is to tunnel. I think the pub on the corner may have to go... we'll see.
Any views and opinions expressed are of my own, and do not reflect the views or opinions of any organisation of which I have an affiliation with.
- SouthAussie94
- High Rise Poster!
- Posts: 499
- Joined: Tue Mar 27, 2012 10:03 pm
- Location: Southern Suburbs
[U/C] Re: News & Discussion: South Road / North-South Corridor
In this article (http://www.abc.net.au/news/2015-06-28/b ... an/6578614) about the new Bald Hills Rd Freeway interchange, there is a small section hinting that funding for the Northern Connector could soon be on its way.
What about Darlington? A similarly large amount of dirt also needs to be excavated from here..
This got me thinking.. The NC will be built on the saltpans and wetlands, with this area likely needing to be built up before work can begin. The T2T section will obviously be a trench with a heap of dirt coming out. Putting 2 & 2 together, is this the likely location for soil excavated for the T2T section? Could the hinted funding be used to begin basic site works for the NC?Mr Briggs said it would make sense to prioritise the Northern Connector project, a proposal to link the Northern Expressway with the South Road Superway, given that other parts of South Road would be congested with construction work in the next few years.
What about Darlington? A similarly large amount of dirt also needs to be excavated from here..
"All we are is bags of bones pushing against a self imposed tide. Just be content with staying alive"
Views and opinions expressed are my own and don't necessarily reflect the views or opinions of any organisation of which I have an affiliation
Views and opinions expressed are my own and don't necessarily reflect the views or opinions of any organisation of which I have an affiliation
[U/C] Re: News & Discussion: South Road / North-South Corridor
You'd hope they'd have enough sense between them to agree to get the NC started ASAP as well.
Let's hope. Mulligan would want to get as much done as possible on a positive note as he's a potential future leader of the Labor party.
Let's hope. Mulligan would want to get as much done as possible on a positive note as he's a potential future leader of the Labor party.
[U/C] Re: News & Discussion: South Road / North-South Corridor
I think the pub is heritage listed and I highly doubt they will dig up a cemetery to build a highway. But a tunnel is possible.
Northern connector is surely high on the list due to the ability to sell large amounts of land for new houses and business which will also supply local workers and demand for new business on the land north of port river expressway.
Northern connector is surely high on the list due to the ability to sell large amounts of land for new houses and business which will also supply local workers and demand for new business on the land north of port river expressway.
[U/C] Re: News & Discussion: South Road / North-South Corridor
Some more details regarding the Torrens to Torrens construction schedule have been released.
Read the presentation by the contractor here: http://www.infrastructure.sa.gov.au/__d ... inal_2.pdf
Read the presentation by the contractor here: http://www.infrastructure.sa.gov.au/__d ... inal_2.pdf
Who is online
Users browsing this forum: No registered users and 3 guests