News & Discussion: Roads & Traffic

Threads relating to transport, water, etc. within the CBD and Metropolitan area.
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rev
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Re: News & Discussion: Roads & Traffic

Post by rev »

cmet wrote:
Tue Apr 06, 2021 6:45 pm
HeapsGood wrote:Magill and Portrush being upgraded at a cost of 98 million for a few extra lanes, property acquisitions NO over or under passes ????? what the hell...
Always laugh when people complain about the prices of these projects, like how would you even know what a certain infrastructure project should cost..?
So what should it cost? When you're done laughing...


I think it's quite reasonable to wonder how nearly $100 million is being spent to widen an intersection, when it's costing $198 million to not only widen an intersection/road but build a bridge over a rail line which will include community rec facilities underneath, not to mention re-aligning the route of a few side streets nearby..Or you know the Port Wakefield bypass project at $124 million..
I don't think I'm alone in wondering that. I think as tax payers we are entitled to ask these questions and get answers. Since you know, we're paying for it.
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Re: News & Discussion: Roads & Traffic

Post by Nort »

https://www.magillroad.com.au/files/110 ... oposal.pdf
The Portrush and Magill Road
Intersection Upgrade is a joint funded
Project of the Australian and South
Australian Governments. A $98 million
budget is reported to be spent on
the Project, of which approximately
$8 million is for project and contract
management, $71 million is for land
acquisition, and $19 million for is for
construction
...
Nine (9) local businesses
and thirty-four (34) privately owned
properties have been acquired in order
to deliver the Project.
Acquiring 43 properties in Norwood is expensive.
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rev
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Re: News & Discussion: Roads & Traffic

Post by rev »

$71 million for 43 properties, or about $1.6 million per property.

Median price for Norwood is $937,500.
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Re: News & Discussion: Roads & Traffic

Post by ChillyPhilly »

The project is in Trinity Gardens.

It is definitely a big chunk of change for a very limited outcome.
Our state, our city, our future.

All views expressed on this forum are my own.
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Re: News & Discussion: Roads & Traffic

Post by PD2/20 »

ChillyPhilly wrote:
Wed Apr 07, 2021 7:09 am
The project is in Trinity Gardens.

It is definitely a big chunk of change for a very limited outcome.
Four suburbs meet at the intersection. The majority, if not all of the acquistions have been west of Portrush in the suburbs of Norwood and Maylands.
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Re: News & Discussion: Roads & Traffic

Post by Nort »

rev wrote:
Wed Apr 07, 2021 4:17 am
$71 million for 43 properties, or about $1.6 million per property.

Median price for Norwood is $937,500.
So it seems about right. Many of the properties there were reasonably large, and there were valuable commercial properties added in.

Add the additional costs related to managing a compulsory acquisition and the premium which is paid to compensate people who don't want to move.
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Re: News & Discussion: Roads & Traffic

Post by 1NEEDS2POST »

SBD wrote:
Fri Jan 08, 2021 8:40 pm
rubberman wrote:
Fri Jan 08, 2021 12:29 pm
SBD wrote:
Thu Jan 07, 2021 9:37 pm

I imagine the modifications to create a "trackless tram" from a normal bus are at least as significant as to make an O-bahn bus. The O'bahn corridor would not be suitable for a "conventional busway" as the track would not be wide enough without some kind of automatic guide.

Fair question about trains and trams. I suspect it has to do with the frequency of level crossings. I wonder what the longest segments are in Adelaide without any level crossings (vehicle or pedestrian).
Trackless trams actually have that automatic guide. It's just not a mechanical one.
I understood that. That part of my answer was to @Spotto's comment that O-Bahn buses need to be specially modified to operate on the track. I think a trackless tram modification would be at least as expensive as a guidewheel modification.

The other part is the suggestion of a "conventional unguided busway" - I suspect that the track/corridor is not wide enough to support high speed operations in opposing directions without a lot more walls (outside and in the middle) and space to manually avoid scraping them.
Trackless trams would address what Spotto mentioned about tyre wear. From what I've seen online, trackless trams steer the rear axles so they won't hit the edges of the road. There's no limit to the length of a trackless tram because the carriages follow the exact same track as the one in front. With buses, the rear axles always follow a narrower radius than the one in front.

Surely trackless trams could steer themselves on a kerb guided O-Bahn track anyway.
Joelmark wrote:
Sat Jan 09, 2021 5:31 am
Rundle Road also has a tram corridor reservation (this is assuming the long vaunted Grenfell-Currie transport mall remains that; long vaunted).
Do you have any more information on that? Where does the tram corridor go at the Western end?
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Re: News & Discussion: Roads & Traffic

Post by rubberman »

Trackless trams are just guided buses. The technology for trailers to follow the unit connected in front has been in use in road trains for decades.

Whether the guides are mechanical linkages or optical doesn't really matter.

We could call our O-Bahn buses "trackless trams" if we wanted. It's just a marketing name.
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Re: News & Discussion: Roads & Traffic

Post by Norman »

Here's a video with the latest progress on the Flagstaff Road widening project.

https://www.youtube.com/watch?v=FXFYsQ90MqE
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Re: News & Discussion: Roads & Traffic

Post by NTRabbit »

Norman wrote:
Sun Jun 13, 2021 7:26 pm
Here's a video with the latest progress on the Flagstaff Road widening project.

https://www.youtube.com/watch?v=FXFYsQ90MqE
As of the early hours of this morning Flagstaff Rd is now one lane up, one lane down all the way to the existing split, (with one small bulge to allow traffic past local residents turning into Elly Court) with the lines for it painted onto the surface, so it's going to be like that for a while.
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