Why not? That's how the Eastern states get things done! Announce now. Work out the details later.
![Laughing :lol:](./images/smilies/icon_lol.gif)
Why not? That's how the Eastern states get things done! Announce now. Work out the details later.
The motorway going over the B roads makes sense, but they still really need to grade separate the rail from the intersection, which means sending that down a trench plus short tunnel with a station replacement like Oaklands.ChillyPhilly wrote: ↑Tue Jul 21, 2020 7:12 amLabor's plan in the Scoping Report was for, basically, a duplication of the existing overpass over Cross Road.NTRabbit wrote:Well, something has to go underground at Cross Rd if they're going to grade separate all of the Motorway, South Rd x Cross Rd, and the railway line.ChillyPhilly wrote: ↑Mon Jul 20, 2020 4:09 pmFor example, a trench or tunnel around Cross Road was not viable because of groundwater.
Who wears the financial risk if it turns out the tunnel has to be watertight and heavy enough not to float on the water table? Or if it needs extra strength to cross a fault line in rock? Doing the geotechnical analysis first as a separate contract means there are less unknowns and caveats in later construction contracts.
Geotecnical surveys do not guarantee a problem free tunnel. It just alerts the contractor to the potential issues. The Burnley tunnel in Melbourne has had numerous episodes of serious leaks over its lifespan, and the contractor must rectify the issues. Rectification is usually just a workaround of a specific problem, but rarely completely resolves the issue (it just has to be maintained in a useable form). The airport rail tunnel in Perth caused a road collapse in Perths Eastern suburbs, and whole roads were closed until it could be resolved. The contractor had to fix the problem at their expense, but somehow the government blamed the cost over run of the project on this issue, and the fact they were surprised how sandy the Perth soil wasSBD wrote: ↑Wed Jul 22, 2020 12:10 amWho wears the financial risk if it turns out the tunnel has to be watertight and heavy enough not to float on the water table? Or if it needs extra strength to cross a fault line in rock? Doing the geotechnical analysis first as a separate contract means there are less unknowns and caveats in later construction contracts.
Why would you tunnel 2-3km PAST the start point of the Darlington Upgrade? What would be the point of this?croweater888 wrote: ↑Wed Jul 22, 2020 12:01 pmThere is a very large section of empty land opposite Caulfield Avenue, Edwardstown. From here they would tunnel a further 5-6km and have multiple exits/entry points at a large section of empty land on the corner of Marion road/Flagstaff Road/South Road and Southern Expressway.
It's not even 3km.croweater888 wrote: ↑Wed Jul 22, 2020 12:01 pmMy two cents:
A tunnel from Hindmarsh to SDBD (about 5km long)
A lowered/widened motorway from SDBD to ANZAC Highway - north side (about 6km long). Mostly houses along the Eastern side, a few businesses like the RAA, Villis as well as the Richmond Primary school.
A continued lowered/widened motorway from ANZAC Highway (south side) to Caulfield Avenue Edwardstown (2.5km). This is the most questionable part, all of homes on the Eastern side of South Road would definitely go, but a lot of businesses here. Thankfully, this section isn't very long.
There is a very large section of empty land opposite Caulfield Avenue, Edwardstown. From here they would tunnel a further 5-6km and have multiple exits/entry points at a large section of empty land on the corner of Marion road/Flagstaff Road/South Road and Southern Expressway.
Remember, this is just me spit-balling.SouthAussie94 wrote: ↑Wed Jul 22, 2020 12:52 pmWhy would you tunnel 2-3km PAST the start point of the Darlington Upgrade? What would be the point of this?croweater888 wrote: ↑Wed Jul 22, 2020 12:01 pmThere is a very large section of empty land opposite Caulfield Avenue, Edwardstown. From here they would tunnel a further 5-6km and have multiple exits/entry points at a large section of empty land on the corner of Marion road/Flagstaff Road/South Road and Southern Expressway.
Which part? True, it is 3.4km from Port Road to SDBD, but I did say 'about'. They passed laws to go under private property, they don't have to follow the path of the existing South Road road to get where they want to go.rev wrote: ↑Wed Jul 22, 2020 2:36 pmIt's not even 3km.croweater888 wrote: ↑Wed Jul 22, 2020 12:01 pmMy two cents:
A tunnel from Hindmarsh to SDBD (about 5km long)
A lowered/widened motorway from SDBD to ANZAC Highway - north side (about 6km long). Mostly houses along the Eastern side, a few businesses like the RAA, Villis as well as the Richmond Primary school.
A continued lowered/widened motorway from ANZAC Highway (south side) to Caulfield Avenue Edwardstown (2.5km). This is the most questionable part, all of homes on the Eastern side of South Road would definitely go, but a lot of businesses here. Thankfully, this section isn't very long.
There is a very large section of empty land opposite Caulfield Avenue, Edwardstown. From here they would tunnel a further 5-6km and have multiple exits/entry points at a large section of empty land on the corner of Marion road/Flagstaff Road/South Road and Southern Expressway.
5km gets you to the start of the Gallipoli underpass at Anzac Hwy.
You're suggesting that the almost complete, brand new $750 million Darlington Upgrade is to be made entirely redundant and we should build a separate piece of infrastructure right next to it that serves exactly the same purpose along a near-identical route? Any form of the NSM south of Anzac Highway will flow seamlessly into the Darlington Upgrade at St Marys. I know you're spit-balling, and a tunnel through Edwardstown had merit, but a suggestion like that is just ludicrous.croweater888 wrote: ↑Wed Jul 22, 2020 4:16 pmRemember, this is just me spit-balling.SouthAussie94 wrote: ↑Wed Jul 22, 2020 12:52 pmWhy would you tunnel 2-3km PAST the start point of the Darlington Upgrade? What would be the point of this?croweater888 wrote: ↑Wed Jul 22, 2020 12:01 pmThere is a very large section of empty land opposite Caulfield Avenue, Edwardstown. From here they would tunnel a further 5-6km and have multiple exits/entry points at a large section of empty land on the corner of Marion road/Flagstaff Road/South Road and Southern Expressway.
If you look at the area map, there isn't much open space to build anything as it's already been built. Except where I am suggesting. This same empty space has the Southern Expressway, Marion Road, South & Flagstaff Hill road all within a very close proximity.
That's around the time of the first planned traffic switch. Might there be indented bus stop bays at those six stops (three in each direction)?
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