[COM] Southern Expressway Duplication | $445m | 22km

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neoballmon
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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#526 Post by neoballmon » Fri Jun 27, 2014 6:36 pm

Where I was parked at the community day, the median was probably the width of another 2 lanes, but I'm pretty sure it narrows out in a lot of places as well, so I doubt the whole corridor is wide enough.
I don't want to say they're not, but I'm pretty sure most of the bridges aren't long enough..


I think they also should have added a 4th Lane on the southbound uphill, two left lanes for heavy vehicles and two lanes for fast flowing traffic. When a heavy vehicle uses the middle Lane at 60 to overtake a slower heavy vehicle, this only leaves one fast flowing Lane being filled with people that don't want to be behind the truck.
I noticed the other night that there is sufficient room to achieve this up to majors road.
Looking forward to a free-flowing Adelaide!

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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#527 Post by drsmith » Fri Jun 27, 2014 8:36 pm

Video of the route showing construction of the duplication.

Construction looks fairly well advanced so it could have been from last summer.



Road Tube has a number of other time lapse drives including Port Wakefield to Adelaide in approximately 7-minutes.

http://www.youtube.com/user/RoadTubeRichard/videos

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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#528 Post by muzzamo » Fri Jun 27, 2014 9:21 pm

The site tour that I went on during the weekend was hosted by one of the head honchos of the site (Site director or head project manager or something). He made a point of saying that the emergency lanes were constructed wide enough to facilitate a third lane using hard shoulder running.

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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#529 Post by alexczarn » Thu Jul 03, 2014 1:38 pm

muzzamo wrote:The site tour that I went on during the weekend was hosted by one of the head honchos of the site (Site director or head project manager or something). He made a point of saying that the emergency lanes were constructed wide enough to facilitate a third lane using hard shoulder running.
So basically they could widen to 3 lanes in the future if needed?

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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#530 Post by ChillyPhilly » Wed Jul 09, 2014 11:03 pm

As predictable, the completed SExy will not be open until August. So basically a delay of a couple weeks.

http://www.news.com.au/national/south-a ... 6983270157
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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#531 Post by neoballmon » Wed Jul 09, 2014 11:40 pm

Noticed lines have been painted right at the southern entrance on the northbound lanes now.
Looking forward to a free-flowing Adelaide!

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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#532 Post by neoballmon » Tue Jul 29, 2014 11:31 pm

Received mail today regarding the expressway. There was a poster enclosed showing diagrams of all the intersections, showing how to use them with the new changes, and a notice explaining current works. There's also a few aerial pictures of the duplicated expressway at a few points.

It will be closed from Friday morning until late Sunday for interchange modifications, with delays on adjacent roads during.

Although it doesn't say specifically, it makes it look like the expressway will be open in both directions once this work in complete.

There seem to be a few extra sets of traffic lights around now.
On Marion Road, there are 2 sets for traffic heading south. The first I can see if for people turning right off the expressway. I can't actually work out why the other set is there (next to the entrance lights)
And there's also lights for turning from South Road (northbound) onto the expressway, as opposed to merging with traffic from Panalatinga Road.
Beach Road obviously has a full traffic light system as well, and the new alignment of Brodie Road North adds in a set.

Sorry for the quality of the pictures.
http://i.imgur.com/zLAKqHc.jpg Hackham/Noarlunga (Honeypot Road and Pedestrian bridges)
http://i.imgur.com/8hfQhqO.jpg Old Noarlunga
http://i.imgur.com/8eNYt65.jpg Various shots
http://i.imgur.com/cZaN23t.jpg Southern Interchanges
http://i.imgur.com/ag9NAXw.jpg Northern Interchanges
Looking forward to a free-flowing Adelaide!

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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#533 Post by Norman » Wed Jul 30, 2014 12:43 am

The guide is also available online:
http://dpti.sa.gov.au/__data/assets/pdf ... way_A4.pdf

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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#534 Post by muzzamo » Wed Jul 30, 2014 4:12 pm

neoballmon wrote: And there's also lights for turning from South Road (northbound) onto the expressway, as opposed to merging with traffic from Panalatinga Road.
I'm quite disappointed that there is no left turn here off the expressway either. Surely this could have been done without too much additional cost?

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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#535 Post by neoballmon » Wed Jul 30, 2014 5:47 pm

muzzamo wrote:
neoballmon wrote: And there's also lights for turning from South Road (northbound) onto the expressway, as opposed to merging with traffic from Panalatinga Road.
I'm quite disappointed that there is no left turn here off the expressway either. Surely this could have been done without too much additional cost?
I think land would have had to be raised a bit for that from memory of the section, but still would have been very easy to complete. Left turns may still be legal there.

I also thought they were adding a left turn lane on South road at Darlington for northbound traffic to enter.
There's quite a few properties between flagstaff Hill Road and this entrance, that would benefit from this. Hopefully they at least make left turns legal there now.

I know it was restricted because it would have meant there would have to be signage facing northbound traffic which would be a waste of money for a small amount of vehicles.
Looking forward to a free-flowing Adelaide!

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[COM] U/C: Southern Expressway Duplication | $445m | 22km

#536 Post by alexczarn » Wed Jul 30, 2014 11:40 pm

The way I read the DPTI website, the Northbound carriageway opens Sunday night...? At least that's what I inferred..

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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#537 Post by I Follow PAFC » Fri Aug 01, 2014 3:09 pm

SA’s Transport Department now says Southern Expressway will officially open this Sunday

THE $407 million Southern Expressway duplication will open to two-way traffic from Sunday (August 3), SA Transport Minister Stephen Mullighan has said today.

The announcement comes less than 48 hours after a Transport Department spokeswoman, who wouldn’t be named, said there was no completion date.

“We have had no confirmation of a final opening date,” the spokeswoman said in an email sent to the Southern Times Messenger on Wednesday (July 30).

It will be open to two-way traffic from Sunday, 3pm

[url=http://www.adelaidenow.com.au/messenger ... 7008598704[/url]
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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#538 Post by monotonehell » Fri Aug 01, 2014 3:52 pm

I Follow PAFC wrote:
SA’s Transport Department now says Southern Expressway will officially open this Sunday

THE $407 million Southern Expressway duplication will open to two-way traffic from Sunday (August 3), SA Transport Minister Stephen Mullighan has said today.

The announcement comes less than 48 hours after a Transport Department spokeswoman, who wouldn’t be named, said there was no completion date.

“We have had no confirmation of a final opening date,” the spokeswoman said in an email sent to the Southern Times Messenger on Wednesday (July 30).

It will be open to two-way traffic from Sunday, 3pm

[url=http://www.adelaidenow.com.au/messenger ... 7008598704[/url]
That's the weirdest article ever. They emailed the department who said there wasn't an confirmed completion date yet. What's with all the "spokeswoman who wouldn't be named" cloak and dagger crap? Then the minister announced the date. Of course there would be no date coming from the department before the minister announced it.

I'll copy edit the article for them:
SA’s Transport Department now says Southern Expressway will officially open this Sunday

THE $407 million Southern Expressway duplication will open to two-way traffic from Sunday, August 3 at 3pm, SA Transport Minister Stephen Mullighan announced today.
Exit on the right in the direction of travel.

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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#539 Post by Rene » Fri Aug 01, 2014 5:07 pm

The entry/exit at Panalatinga/South Rd intersection needs more work as there's no exit (shown on plans) there for those travelling north on the expressway. Even southbound appears restricted with possibly no left turn into South Road.

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[COM] Re: U/C: Southern Expressway Duplication | $445m | 22km

#540 Post by Norman » Fri Aug 01, 2014 5:18 pm

The north-bound exit and south-bound entry ramps were not included as there is not enough demand for them in the traffic modelling.

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