[U/C] M2 North-South Motorway

[SBD]

Adelaide is quite unique in that large sections of our inner suburbs remain largely intact. Looking at the MATS plan is scary for what it would have done to Bowden / Hindmarsh - the whole area would have been completely obliterated. it's good that we've held onto our heritage.

The North-South Motorway and its predecessor have obliterated a swathe of houses and businesses too. The 1948 street directory doesn't have a road through Croydon Park at all lined with where South Road and now the NSM go. Other parts have been widened by removing buildings too. I agree the MATS would have destroyed more over a wider area.

[SouthAussie94]

I'm pretty sure the OTR will stay, the demolition is only happening south of English Avenue.

The OTR and Sexyland have now closed.

Demolition is also underway on the Bouldering Place. Once this, Sexyland and the OTR are gone then Demolition for the Southern Tunnel portal will be complete

[SouthAussie94]

The Majors Rd Interchange is progressing.

Bridge abutments are largely complete, with the bridge girders due to be installed in early September. I've heard this will be done at night.

The southern side of the new veloway underpass under Majors Rd has been built. Once the new road bridge is built and open to traffic, the current alignment of Majors Rd can be closed and the northern portion of the veloway underpass built.

The shared use path between Main South Rd and Glenthorn National Park is complete and open. Construction of the path between Adams Rd and Ocean Boulevard is underway.

Earthworks for the new northbound on ramp look close to completion. The other three on/off ramps are also underway. Apparently the need to maintain access for SAAS/MFS vehicles is restricting how quickly things can be built.

[Norman]

Thanks for the update

[[Shuz]]

Had to go along the freeway this morning for a work meeting going the opposite direction in peak hour.

My God, I could not believe how backed up it gets. All 3 lanes were a parking lot between Ashwin Parade and the Outer Harbor train line bridge in the morning. And in the evening, it was backed up from the Port River Expressway to just after the Regency Road overpass.

Did they expect this level of (induced) demand in the planning?

Not that I'm advocating we may need an additional fourth lane built just yet (and I really don't know how or where that would fit in) but jeez, with increasing population growth, that's bound to keep having a negative compound effect particularly with all the new housing developments in the Northern suburbs.

[Vasco]

Had to go along the freeway this morning for a work meeting going the opposite direction in peak hour.

My God, I could not believe how backed up it gets. All 3 lanes were a parking lot between Ashwin Parade and the Outer Harbor train line bridge in the morning. And in the evening, it was backed up from the Port River Expressway to just after the Regency Road overpass.

Did they expect this level of (induced) demand in the planning?

Not that I'm advocating we may need an additional fourth lane built just yet (and I really don't know how or where that would fit in) but jeez, with increasing population growth, that's bound to keep having a negative compound effect particularly with all the new housing developments in the Northern suburbs.

Haven’t seen it myself, but I guess that’s what happens when you funnel a free flowing freeway which ends and transfers into 2 lanes with traffic lights nearby and traffic ahead…


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[ChillyPhilly]

Had to go along the freeway this morning for a work meeting going the opposite direction in peak hour.

My God, I could not believe how backed up it gets. All 3 lanes were a parking lot between Ashwin Parade and the Outer Harbor train line bridge in the morning. And in the evening, it was backed up from the Port River Expressway to just after the Regency Road overpass.

Did they expect this level of (induced) demand in the planning?

Not that I'm advocating we may need an additional fourth lane built just yet (and I really don't know how or where that would fit in) but jeez, with increasing population growth, that's bound to keep having a negative compound effect particularly with all the new housing developments in the Northern suburbs.

I'd like to think this is a bottleneck rather than severe induced demand.

[SBD]

Had to go along the freeway this morning for a work meeting going the opposite direction in peak hour.

My God, I could not believe how backed up it gets. All 3 lanes were a parking lot between Ashwin Parade and the Outer Harbor train line bridge in the morning. And in the evening, it was backed up from the Port River Expressway to just after the Regency Road overpass.

Did they expect this level of (induced) demand in the planning?

Not that I'm advocating we may need an additional fourth lane built just yet (and I really don't know how or where that would fit in) but jeez, with increasing population growth, that's bound to keep having a negative compound effect particularly with all the new housing developments in the Northern suburbs.

I'd like to think this is a bottleneck rather than severe induced demand.

Agreed - southbound funnels from 3 lanes of freeway and 2 lanes of surface road into two lanes over the bridge to the Ashwin Parade traffic lights. Presumably the situation at Tonsley is just as bad and that's why the southern part of T2D will be done before fixing this and the HBR and SDBD intersections.

I'm told that the morning southbound queue for the Port Road traffic lights often extends well in to the left lane of the trench, too. I haven't heard what the current design offers to avoid the same thing northbound at Anzac Highway since the flyover was replaced in the design by traffic lights.

[[Shuz]]

Yeah the southbound Port Road exit is definitely a bit of a cockup. They need to fix that sooner rather than later. Again, how, I don't know, and whatever the solution will be a very expensive one.

[rev]

Had to go along the freeway this morning for a work meeting going the opposite direction in peak hour.

My God, I could not believe how backed up it gets. All 3 lanes were a parking lot between Ashwin Parade and the Outer Harbor train line bridge in the morning. And in the evening, it was backed up from the Port River Expressway to just after the Regency Road overpass.

Did they expect this level of (induced) demand in the planning?

Not that I'm advocating we may need an additional fourth lane built just yet (and I really don't know how or where that would fit in) but jeez, with increasing population growth, that's bound to keep having a negative compound effect particularly with all the new housing developments in the Northern suburbs.

A whole transport network approach is needed instead of individual projects.

That area around Ashwin Parade down to Richmond Road is the worst section with probably the worst drivers in Adelaide. Some people really should be restricted to owning a smart/self driving car only.
I'm looking forward to the NSM being completed, but dreading being in tunnels with those drivers, will probably continue to avoid the area during afternoon peak hour.

[A-Town]

Had to go along the freeway this morning for a work meeting going the opposite direction in peak hour.

My God, I could not believe how backed up it gets. All 3 lanes were a parking lot between Ashwin Parade and the Outer Harbor train line bridge in the morning. And in the evening, it was backed up from the Port River Expressway to just after the Regency Road overpass.

Did they expect this level of (induced) demand in the planning?

Not that I'm advocating we may need an additional fourth lane built just yet (and I really don't know how or where that would fit in) but jeez, with increasing population growth, that's bound to keep having a negative compound effect particularly with all the new housing developments in the Northern suburbs.

I'd like to think this is a bottleneck rather than severe induced demand.

I haven't heard what the current design offers to avoid the same thing northbound at Anzac Highway since the flyover was replaced in the design by traffic lights.

I assume they're forecasting a lot of the city bound traffic to use the James Congdon Drive exit which was redesigned after the flyover was cancelled for Anzac Highway.

Does anyone know if they'll be installing right hand turns from James Congdon Drive to Sir Donald Bradman Drive?

[A-Town]

Had to go along the freeway this morning for a work meeting going the opposite direction in peak hour.

My God, I could not believe how backed up it gets. All 3 lanes were a parking lot between Ashwin Parade and the Outer Harbor train line bridge in the morning. And in the evening, it was backed up from the Port River Expressway to just after the Regency Road overpass.

Did they expect this level of (induced) demand in the planning?

Not that I'm advocating we may need an additional fourth lane built just yet (and I really don't know how or where that would fit in) but jeez, with increasing population growth, that's bound to keep having a negative compound effect particularly with all the new housing developments in the Northern suburbs.

A whole transport network approach is needed instead of individual projects.

That area around Ashwin Parade down to Richmond Road is the worst section with probably the worst drivers in Adelaide. Some people really should be restricted to owning a smart/self driving car only.
I'm looking forward to the NSM being completed, but dreading being in tunnels with those drivers, will probably continue to avoid the area during afternoon peak hour.

The Castle Plaza/Edwardstown section is just as bad. In my opinion, Adelaide drivers are at their worst when there's rain. At least you won't need to worry about that in the tunnels

[AG]

I'd like to think this is a bottleneck rather than severe induced demand.

I haven't heard what the current design offers to avoid the same thing northbound at Anzac Highway since the flyover was replaced in the design by traffic lights.

I assume they're forecasting a lot of the city bound traffic to use the James Congdon Drive exit which was redesigned after the flyover was cancelled for Anzac Highway.

Does anyone know if they'll be installing right hand turns from James Congdon Drive to Sir Donald Bradman Drive?

Yes, that was included in the scope.

[Hooligan]

Further up the NSM, the Heaslip and the Curtis road exits regularly fill up the merging lanes and back out towards the freeway in peak hour.

[SBD]

Further up the NSM, the Heaslip and the Curtis road exits regularly fill up the merging lanes and back out towards the freeway in peak hour.

Has it gotten better in the last couple of years? Up until 2021, the Mark Oliphant College high school zone included areas west of the Northern Expressway, so school pickup would have had lots of cars going west (blocking exit from the expressway) through the roundabout. Since 2022, that area is zone to Riverbanks College at Angle Vale instead.