Main South Road & Victor Harbor Road Upgrade

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rev
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Main South Road & Victor Harbor Road Upgrade

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https://drive.google.com/file/d/1ktcOSV ... qTclv/view
https://drive.google.com/file/d/1k7V8rC ... IqXIs/view
Concept designs for duplication of Main South, Victor Harbor roads released for public consultation

The first concept designs for major upgrades to Main South and Victor Harbor roads have been revealed. What do you think of them?
Elizabeth Henson
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March 29, 2021 - 1:35PM

Concepts designs for the proposed duplication of both Main South and Victor Harbor roads have been released for public consultation.

The State Government is seeking feedback on two design scenarios, before construction work begins by the end of the year.

The first option includes the duplication of Main South Rd from Seaford to Sellicks Beach, including dual lane roundabouts at the intersection of Tatachilla/Maslin Beach roads, Port Rd and Aldinga Rd. It also involves the duplication of Victor Harbor Rd, between Main South and Main roads, McLaren Vale.

The second option is a duplication of Main South Rd, from Seaford to Aldinga, including a grade separation at the Tatachilla and Maslin Beach roads intersection, and dual lane roundabouts at Port and Aldinga roads. Stage Two of this option involves the upgrade of Main South Rd, from Aldinga to Sellicks Beach; and extending the duplication of Victor Harbor Rd from Main South Rd, past Main Rd in McLaren Vale, to Tatachilla Rd to a proposed posted speed limit of 100km/h.

The projects will cost a total of $560 million and are being jointly funded by the State and Federal Governments. They are expected to be completed in 2023.

The Main South Rd Action Group has been lobbying for dual lanes and overpasses and underpasses, saying roundabouts would cause traffic congestion.

The group’s chairman Craig Curtis said the group was “mortified” at the options put forward.

“We’re getting ripped off,” he said.

“(Roundabouts are) going to destroy the traffic flow on Main South Rd.”

Mr Curtis said the group would organise a community meeting in the coming weeks to discuss the proposals.

Deputy Prime Minister Michael McCormack said the upgrades would support about 770 full time equivalent jobs each year during construction and improve access to one of South Australia’s premier tourism regions.

SA Transport Minister Corey Wingard urged community members to have their say about which design option they think will deliver the greatest benefits.

“Their input will help inform the design and decision process going forward and will mean the projects will deliver the best outcomes for the community and the motorists that use these roads every week,” he said.

Concepts designs for the proposed duplication of both Main South and Victor Harbor roads have been released for public consultation.

The State Government is seeking feedback on two design scenarios, before construction work begins by the end of the year.

The first option includes the duplication of Main South Rd from Seaford to Sellicks Beach, including dual lane roundabouts at the intersection of Tatachilla/Maslin Beach roads, Port Rd and Aldinga Rd. It also involves the duplication of Victor Harbor Rd, between Main South and Main roads, McLaren Vale.
Main South Rd, Tatachilla Rd and Maslin Beach Rd, Tatachilla. Picture: RAA
Main South Rd, Tatachilla Rd and Maslin Beach Rd, Tatachilla. Picture: RAA

The second option is a duplication of Main South Rd, from Seaford to Aldinga, including a grade separation at the Tatachilla and Maslin Beach roads intersection, and dual lane roundabouts at Port and Aldinga roads. Stage Two of this option involves the upgrade of Main South Rd, from Aldinga to Sellicks Beach; and extending the duplication of Victor Harbor Rd from Main South Rd, past Main Rd in McLaren Vale, to Tatachilla Rd to a proposed posted speed limit of 100km/h.

The projects will cost a total of $560 million and are being jointly funded by the State and Federal Governments. They are expected to be completed in 2023.

The Main South Rd Action Group has been lobbying for dual lanes and overpasses and underpasses, saying roundabouts would cause traffic congestion.

The group’s chairman Craig Curtis said the group was “mortified” at the options put forward.

“We’re getting ripped off,” he said.

“(Roundabouts are) going to destroy the traffic flow on Main South Rd.”

Mr Curtis said the group would organise a community meeting in the coming weeks to discuss the proposals.

Deputy Prime Minister Michael McCormack said the upgrades would support about 770 full time equivalent jobs each year during construction and improve access to one of South Australia’s premier tourism regions.

SA Transport Minister Corey Wingard urged community members to have their say about which design option they think will deliver the greatest benefits.

“Their input will help inform the design and decision process going forward and will mean the projects will deliver the best outcomes for the community and the motorists that use these roads every week,” he said.

The Advertiser2:41
New designs for Victor Harbor Road revealed
The SA Government has released its first concept plans for the duplication of Victor Harbor Road south of Adelaide.

On top of the two scenarios, an additional $15 million has been allocated for safety improvements, which may include junction upgrades and/or overtaking lanes on Victor Harbor Rd.

Originally, the proposed upgrade of Main South Rd involved the duplication of about 10km of the thoroughfare, from Aldinga to south of Griffiths Drive in Seaford while the second stage continued the duplication a further 6km, from Aldinga to Sellicks Beach.

Traffic data has shown 26,000 vehicles per day use Victor Harbor Rd, between Main South and Main roads, McLaren Vale while 10,200 vehicles per day use Main South Rd south of Aldinga Beach Rd, to Norman Rd, while 8000 vehicles per day use the road between Norman and Sellicks Beach Rd.

“Traffic analysis shows that almost three times as many motorists use Victor Harbor Road than Main South Road beyond Aldinga so it’s vital we look at investing where the best outcomes will be achieved,” Mr Wingard said.

Community feedback can be provided via information sessions or online.

Feedback received will help inform the decision however other criteria, such as road safety, funding constraints and engineering matters will also be considered.

For more information and to provide feedback visit dit.sa.gov.au/msrd and dit.sa.gov.au/vhrd.
https://www.adelaidenow.com.au/news/sou ... f48b8935e6
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Re: Main South Road & Victor Harbor Road Upgrade

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SCENARIO 1 – TWO LANE ROUNDABOUT SOLUTION

Duplication of Main South Road, Stages 1 and 2 from Seaford to Sellicks, including dual lane roundabouts at the intersection of Tatachilla Road/Maslin Beach Road, Port Road and Aldinga Road.
Duplication of Victor Harbor Road, between Main South Road and Main Road, McLaren Vale.

SCENARIO 2 – NORTH-SOUTH OVERPASS SOLUTION


Duplication of Main South Road, Stage 1, from Seaford to Aldinga including a grade separation at the intersection of Tatachilla Road/Maslin Beach Road, and dual lane roundabouts at Port Road and Aldinga Road.
Upgrade of Stage 2, from Aldinga to Sellicks, to address safety and future capacity of Main South Road.
Extend Victor Harbor Road duplication from Main South Road past Main Road, in McLaren Vale to Tatachilla Road to a proposed posted speed limit of 100km/h.

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Re: Main South Road & Victor Harbor Road Upgrade

Post by ChillyPhilly »

Much needed for road safety - this should be the only reason these projects are done.

Our state, our city, our future.

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Re: Main South Road & Victor Harbor Road Upgrade

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I thought The the Victor Harbor Road Duplication and the Main South Road Duplication were separate Projects, now suddenly they've been merged into the same budget?

Then we get options that introduce further slow points in the form of roundabouts for a project that is supposed to improve safety and most importantly the flow of traffic.....? :wallbash:

The only thing that gets a tick from me from these proposals is the overpass at Main South/Tatchilla/Maslins Beach Roads. Roundabouts for the remaining key intersections is a cop out and will not to achieve the desired outcomes.

Aldinga Road and Aldinga Beach Road should be aligned and a "mini" interchange constructed. Adding a second lane to the roadabout at Port road might help ease the congestion caused by putting the roundabout there in the first place, but I doubt that will be enough to resolve the issues there, particularly over the longer term. Then there's the proposed removal of just about every right turn onto Main South road between Griffiths Drive and Aldinga Beach Road......WTF?

To say I'm disappointed by these proposals would be an understatement.
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Re: Main South Road & Victor Harbor Road Upgrade

Post by Norman »

Archer wrote:
Mon Mar 29, 2021 9:29 pm
I thought The the Victor Harbor Road Duplication and the Main South Road Duplication were separate Projects, now suddenly they've been merged into the same budget?
They probably did it to have the same contractors work on both projects at the same time, which could save costs in administration and construction. The budget allocation for both projects is still the same I believe.
Archer wrote:
Mon Mar 29, 2021 9:29 pm
Then we get options that introduce further slow points in the form of roundabouts for a project that is supposed to improve safety and most importantly the flow of traffic.....? :wallbash:
The roundabout at Quarry and Robinson Road is a bit puzzling, as there are 25-30,000 cars that move through this intersection daily. However, as the speed limit is only 60km/h at this point, a roundabout is not a crazy solution.
Archer wrote:
Mon Mar 29, 2021 9:29 pm
The only thing that gets a tick from me from these proposals is the overpass at Main South/Tatchilla/Maslins Beach Roads. Roundabouts for the remaining key intersections is a cop out and will not to achieve the desired outcomes.
Think about the role of Main South Road. It's not a freeway or highway, it's a rural arterial road that holds about 18,000 cars per year, and growing. Roundabouts are an acceptable solution in the short to medium term until the population reaches a level that requires different intersection treatments. The key factor here is the limited budget the department is playing with. If they had an extra $150m-$200m they could probably remove some of the roundabouts and put in more overpasses and ramps, but they don't have that extra funding.

Not sure why you dislike roundabouts so much. The intersection of Flagstaff Road and Black Road features a very big roundabout with a higher amount of traffic does this quite well. Roundabouts are also quite safe from a road safety perspective.
Archer wrote:
Mon Mar 29, 2021 9:29 pm
Then there's the proposed removal of just about every right turn onto Main South road between Griffiths Drive and Aldinga Beach Road......WTF?
Right turn movements at intersections are dangerous, especially when the posted speed limit is 80km/h or more. They should be avoided as much as possible.

In my opinion they should go for Scenario 1. Duplicating the road all the way to Sellicks Beach will future proof the road more, and the roundabout is easily replaceable in the future.
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Re: Main South Road & Victor Harbor Road Upgrade

Post by rev »

Improved roads will mean better access down south so the traffic volume will increase. It shouldn't be a rural road but a motorway.

Dont have the extra funding for roads? But they can find an extra $450 million for a stadium nobody asked for instead of building the $250 million proposal across the river.
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Re: Main South Road & Victor Harbor Road Upgrade

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Just please get it right the first time.
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Re: Main South Road & Victor Harbor Road Upgrade

Post by [Shuz] »

I think option A seems like the best way to go for the moment.

Surprised at the price tag though... its literally bitumen
kerbing , manual labour and some street lights. Am I missing something here?
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Re: Main South Road & Victor Harbor Road Upgrade

Post by Norman »

[Shuz] wrote:
Tue Mar 30, 2021 12:12 pm
I think option A seems like the best way to go for the moment.

Surprised at the price tag though... its literally bitumen
kerbing , manual labour and some street lights. Am I missing something here?
They are building a new bridge over Pedler Creek and demolishing the existing one. Maybe also some land acquisition? These projects are never very transparent about how much costs what.

EDIT: Looking at the parcel cadastre, there is definitely some land acquisition required along most of the Main South Road corridor. The current allowance only just covers the existing road.
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Re: Main South Road & Victor Harbor Road Upgrade

Post by SBD »

rev wrote:
Tue Mar 30, 2021 5:01 am
Improved roads will mean better access down south so the traffic volume will increase. It shouldn't be a rural road but a motorway.

Dont have the extra funding for roads? But they can find an extra $450 million for a stadium nobody asked for instead of building the $250 million proposal across the river.
What are the drivers for traffic growth in this area? It doesn't seem to have major industrial facilities (apart from wineries and a milk processing plant) that require more heavy vehicles as they expand (or have I missed something?). It seems to be just as far from the Adelaide CBD as Buckland Park which already has new roads.
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Re: Main South Road & Victor Harbor Road Upgrade

Post by GrowAdelaide »

SBD wrote:
Tue Mar 30, 2021 2:28 pm
rev wrote:
Tue Mar 30, 2021 5:01 am
Improved roads will mean better access down south so the traffic volume will increase. It shouldn't be a rural road but a motorway.

Dont have the extra funding for roads? But they can find an extra $450 million for a stadium nobody asked for instead of building the $250 million proposal across the river.
What are the drivers for traffic growth in this area? It doesn't seem to have major industrial facilities (apart from wineries and a milk processing plant) that require more heavy vehicles as they expand (or have I missed something?). It seems to be just as far from the Adelaide CBD as Buckland Park which already has new roads.
The suburban sprawl has been expanding down there for decades now, and places like Aldinga and Sellicks Beach are popular short term getaway spots. On top of that it is also the road to the ferry to KI, and other popular spots down the Fleurieu Peninsula.
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Re: Main South Road & Victor Harbor Road Upgrade

Post by Archer »

Norman wrote:
Mon Mar 29, 2021 11:43 pm
Archer wrote:
Mon Mar 29, 2021 9:29 pm
I thought The the Victor Harbor Road Duplication and the Main South Road Duplication were separate Projects, now suddenly they've been merged into the same budget?
They probably did it to have the same contractors work on both projects at the same time, which could save costs in administration and construction. The budget allocation for both projects is still the same I believe.
Fair enough, if that's the case then no problem.
Norman wrote:
Mon Mar 29, 2021 11:43 pm
Archer wrote:
Mon Mar 29, 2021 9:29 pm
Then we get options that introduce further slow points in the form of roundabouts for a project that is supposed to improve safety and most importantly the flow of traffic.....? :wallbash:
The roundabout at Quarry and Robinson Road is a bit puzzling, as there are 25-30,000 cars that move through this intersection daily. However, as the speed limit is only 60km/h at this point, a roundabout is not a crazy solution.
For that location, it will result in backlogs of traffic along Robinson road at peak times for anyone needing to get onto Victor Harbor Road. The flow of traffic along Victor Harbor road during peak would just be too high to provide sufficient breaks in the traffic.
Norman wrote:
Mon Mar 29, 2021 11:43 pm
Archer wrote:
Mon Mar 29, 2021 9:29 pm
The only thing that gets a tick from me from these proposals is the overpass at Main South/Tatchilla/Maslins Beach Roads. Roundabouts for the remaining key intersections is a cop out and will not to achieve the desired outcomes.
Think about the role of Main South Road. It's not a freeway or highway, it's a rural arterial road that holds about 18,000 cars per year, and growing. Roundabouts are an acceptable solution in the short to medium term until the population reaches a level that requires different intersection treatments. The key factor here is the limited budget the department is playing with. If they had an extra $150m-$200m they could probably remove some of the roundabouts and put in more overpasses and ramps, but they don't have that extra funding.
I think "Rural Arterial Road" is understating this route, the size of the population of not just the immediate areas, but those further south that are dependent on this road as well. The Rate of growth of the area over the last 10 years has been significant and with the new Super School and upgrades to recreation facilities in Aldinga, Growth and demand on the only major road servicing these areas is only going to continue. This sort of infrastructure upgrade should be being built to address future needs so the facilities are in place for the future growth, not just piecemeal upgrades that don't even solve the existing problems. Just looks at the delays & issues caused at peak times with the existing roundabout at port road.
Norman wrote:
Mon Mar 29, 2021 11:43 pm
Not sure why you dislike roundabouts so much. The intersection of Flagstaff Road and Black Road features a very big roundabout with a higher amount of traffic does this quite well. Roundabouts are also quite safe from a road safety perspective.
I have no problem with roundabouts when they are used in an appropriate setting with a reasonably balanced traffic load across them. Where they don't work and shouldn't be considered is in the middle of a major road that should be sign posted at 100Km/h. All that will achieve is unnecessarily slowing traffic and further increase the number and severity of rear end collisions at these locations.
Norman wrote:
Mon Mar 29, 2021 11:43 pm
Archer wrote:
Mon Mar 29, 2021 9:29 pm
Then there's the proposed removal of just about every right turn onto Main South road between Griffiths Drive and Aldinga Beach Road......WTF?
Right turn movements at intersections are dangerous, especially when the posted speed limit is 80km/h or more. They should be avoided as much as possible.
Sure, I get the removing of dangerous movements and on closer inspection of the plans and the surrounding back roads, I may have been a little harsh on this point. There seems to be reasonable access to alternative routes to Tatachilla road or Malpas road on the eastern side to facilitate Right turns at those locations as well as to Old Coach/Commercial Road on the Western side to head south, so I'm happy to retract my objection to this.

However the Aldinga Beach Road Intersection seems to be largely ignored in either scenario and gets a minor upgrade which removes the ability to turn right onto Main South Road to head south. Maybe the need for this is small, but it does seem strange to me to force any traffic wanting to do this to either go back up to Port road through the township or use the Lower Esplanade (which is narrow and not in great condition) to Norman Road, assuming a right turn will be allowed at that point. Regardless of that, I would have thought the volume of traffic using this intersection would have warranted a more significant upgrade.
Norman wrote:
Mon Mar 29, 2021 11:43 pm
In my opinion they should go for Scenario 1. Duplicating the road all the way to Sellicks Beach will future proof the road more, and the roundabout is easily replaceable in the future.
Personally I prefer Scenario 2, but don't duplicate Victor Harbor road beyond the Main road Interchange, instead use those funds to do more than roadabouts on Main South road. If Roundabouts at Port Road and Aldinga road are locked in regardless, then use the money to complete the duplication to Sellicks. Given the Victor Harbor Road duplication beyond Main Road is only proposed to reach Tatachilla Road anyway, I think it would be better to delay that section to a future project when the full section between Main Road and the bottom of Willunga hill can be completed in one go. The section From Main Road to Tatachilla is reasonably good anyway, so better value in completing the duplication on Main South Road to Sellicks.
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Re: Main South Road & Victor Harbor Road Upgrade

Post by SBD »

You appear to be dead against roundabouts, even though the concept plan appears to make them quite wide with smooth entry and exits ramps. Do you prefer traffic lights as are being installed at the Port Wakefield and Angle Vale Road intersection? Those traffic lights will be the only set between the River Torrens and Port Augusta since R2P has opened this week. Adding more lights to Main South Road would be just like the additional sets that have been added to Main North Road between Smithfield and Gawler.

Main South Road has driveways and side roads coming out straight on to it between this section and the end of the Southern Expressway including through Seaford. "Rural arterial" seems like a reasonable description for route B23. It's not like routes M2, A1 and A20. Victor Harbor Road A13 has far fewer driveways and intersections on it.
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Re: Main South Road & Victor Harbor Road Upgrade

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SBD wrote:
Tue Mar 30, 2021 11:32 pm
You appear to be dead against roundabouts, even though the concept plan appears to make them quite wide with smooth entry and exits ramps. Do you prefer traffic lights as are being installed at the Port Wakefield and Angle Vale Road intersection? Those traffic lights will be the only set between the River Torrens and Port Augusta since R2P has opened this week. Adding more lights to Main South Road would be just like the additional sets that have been added to Main North Road between Smithfield and Gawler.

Main South Road has driveways and side roads coming out straight on to it between this section and the end of the Southern Expressway including through Seaford. "Rural arterial" seems like a reasonable description for route B23. It's not like routes M2, A1 and A20. Victor Harbor Road A13 has far fewer driveways and intersections on it.
I guess that's where property acquisition and possibly access roads parallel to Main South Road can come into play.
Hopefully this upgrade sees the removal of the traffic lights at the southern end of the Southern Expressway.
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Re: Main South Road & Victor Harbor Road Upgrade

Post by Archer »

SBD wrote:
Tue Mar 30, 2021 11:32 pm
You appear to be dead against roundabouts, even though the concept plan appears to make them quite wide with smooth entry and exits ramps. Do you prefer traffic lights as are being installed at the Port Wakefield and Angle Vale Road intersection? Those traffic lights will be the only set between the River Torrens and Port Augusta since R2P has opened this week. Adding more lights to Main South Road would be just like the additional sets that have been added to Main North Road between Smithfield and Gawler.

Main South Road has driveways and side roads coming out straight on to it between this section and the end of the Southern Expressway including through Seaford. "Rural arterial" seems like a reasonable description for route B23. It's not like routes M2, A1 and A20. Victor Harbor Road A13 has far fewer driveways and intersections on it.
I'm against Roundabouts in this situation, as I don't believe that they will alleviate the issues. Traffic Lights are also not going to resolve the issues, but fortunately are not an option being considered here. I suspect that regardless of community feed back we'll end up with roundabouts, so I guess we'll find out in a couple of years whether it was the right call. Personally I don't think it will be.

As for the difference between Main South Road being a B Road (B23) vs Victor Harbor Road being an A Road (A13), I don't know the criteria for these assignments, but looking at the maps for the sections of these roads between Griffiths Drive/Robinson Road and Sellicks Beach for Main South Road and say Mt Compass for Victor Harbor Road, I don't see a lot of difference. Yes there are drive ways and side roads onto Main South Road, but these exist along Victor Harbor road as well, slightly fewer but not a huge difference.

There is a section between Seaford Road and Griffiths Drive which does have a lot of Driveways and is appropriately limited to 60km/h, this section matches what you describe, but is not the case beyond Griffiths Drive. Ideally this area could do with further upgrades as well, but as usual, the last lot of upgrades didn't really plan for future traffic volumes well either so....

The largest difference I can see is the population centers at the end of the road with Victor Harbor obviously being much larger than the towns further south along MSR, even including KI. However, if you include the Aldinga & Sellicks beach areas, it would be much closer. Maybe the existing B status of Main South Road, at least to Sellicks Beach should be changed to match that of Victor Harbor Road, particularly with the expected growth of the area (you know, forward planning and all that).....
Last edited by Archer on Wed Mar 31, 2021 10:46 pm, edited 1 time in total.
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