[U/C] M2 North-South Motorway

[rev]

I don't get the comments that this seems over engineered. If anything it seems quite restrained in the impact on the existing intersection and Anzac highway considering the need for traffic coming from the tunnel to keep moving without suddenly hitting lights and creating a potential backup

The same solution was used on the Darlington upgrade, South Rd/Motorway going onto Ayliffes road.
Single lane overpass.

Anzac Hwy is a much more important and busier roadway then Ayliffes road.

[aceman]

I don't get the comments that this seems over engineered. If anything it seems quite restrained in the impact on the existing intersection and Anzac highway considering the need for traffic coming from the tunnel to keep moving without suddenly hitting lights and creating a potential backup

The same solution was used on the Darlington upgrade, South Rd/Motorway going onto Ayliffes road.
Single lane overpass.

Anzac Hwy is a much more important and busier roadway then Ayliffes road.

2 lane overpass northbound only. you're right in saying that the volume of traffic exiting the motorway onto anzac highway will be a lot more than ayliffes rd.

[rev]

I don't get the comments that this seems over engineered. If anything it seems quite restrained in the impact on the existing intersection and Anzac highway considering the need for traffic coming from the tunnel to keep moving without suddenly hitting lights and creating a potential backup

The same solution was used on the Darlington upgrade, South Rd/Motorway going onto Ayliffes road.
Single lane overpass.

Anzac Hwy is a much more important and busier roadway then Ayliffes road.

2 lane overpass northbound only. you're right in saying that the volume of traffic exiting the motorway onto anzac highway will be a lot more than ayliffes rd.

Ah yes you're right, I dont drive down south much and from memory from below it looked single lane.

[Norman]

I don't get the comments that this seems over engineered. If anything it seems quite restrained in the impact on the existing intersection and Anzac highway considering the need for traffic coming from the tunnel to keep moving without suddenly hitting lights and creating a potential backup

Look, I get that it works from a traffic engineer's point of view, but I see this project from the eyes of an urban planner. I think this will encourage further sprawl and a further move away from public transport for travel into the city. I understand that there needs to be some sort of connection to the CBD, but the easier you make it for people to drive into the city the less likely they are to use alternatives.

I personally would prefer if they focused on trips that can't be done by public transport (such as cross-city travel) than trips that would be much better left with public transport, which is travel to the CBD.

[Nort]

I don't get the comments that this seems over engineered. If anything it seems quite restrained in the impact on the existing intersection and Anzac highway considering the need for traffic coming from the tunnel to keep moving without suddenly hitting lights and creating a potential backup

Look, I get that it works from a traffic engineer's point of view, but I see this project from the eyes of an urban planner. I think this will encourage further sprawl and a further move away from public transport for travel into the city. I understand that there needs to be some sort of connection to the CBD, but the easier you make it for people to drive into the city the less likely they are to use alternatives.

I personally would prefer if they focused on trips that can't be done by public transport (such as cross-city travel) than trips that would be much better left with public transport, which is travel to the CBD.

I agree, but the debate on whether to spend tens of billions of dollars putting a freeway through Adelaide was over years ago. That being the case it makes sense to do things safely and efficiently, and solutions which could result in traffic backing up into a tunnel are not that.

[ChillyPhilly]

It's Liberal Party thinking - disregard for urban planning. The ramp will encourage car travel to the CBD. It's creating demand that isn't even necessarily there.

[aceman]

It's Liberal Party thinking - disregard for urban planning. The ramp will encourage car travel to the CBD. It's creating demand that isn't even necessarily there.

at least the plan is to do it when the tunnels are going in. if they don't do it everyone will complain that it should have been done when the tunnels went in. nothing wrong with a bit of forward planning.

[ChillyPhilly]

I understand where you're coming from.

But what is the 'forward planning' for? Why are we actively providing an easy solution to a problem that is avoidable and does not need to exist?

[aceman]

I understand where you're coming from.

But what is the 'forward planning' for? Why are we actively providing an easy solution to a problem that is avoidable and does not need to exist?

what is the problem that is avoidable and doesn't need to exist? why is this overpass such a bad idea?

[rev]

It's Liberal Party thinking - disregard for urban planning. The ramp will encourage car travel to the CBD. It's creating demand that isn't even necessarily there.

What are you talking about demand that isn't even there? The roads in and around the city are congested.

[rev]

I don't get the comments that this seems over engineered. If anything it seems quite restrained in the impact on the existing intersection and Anzac highway considering the need for traffic coming from the tunnel to keep moving without suddenly hitting lights and creating a potential backup

Look, I get that it works from a traffic engineer's point of view, but I see this project from the eyes of an urban planner. I think this will encourage further sprawl and a further move away from public transport for travel into the city. I understand that there needs to be some sort of connection to the CBD, but the easier you make it for people to drive into the city the less likely they are to use alternatives.

I personally would prefer if they focused on trips that can't be done by public transport (such as cross-city travel) than trips that would be much better left with public transport, which is travel to the CBD.

That sprawl is inevitable. It's happening already and will continue to happen both north and south.

Not everyone can afford to live in existing inner suburbs, if you can thats great.
Not everyone can or wants to live in a city apartment, if you do great for you.
As well as the motorways, there should be (or should have been) trains. Both Labor and Liberal have failed on that particularly in the north.

[Nort]

I understand where you're coming from.

But what is the 'forward planning' for? Why are we actively providing an easy solution to a problem that is avoidable and does not need to exist?

Do you have an alternate solution for getting traffic off the freeway and into the city that doesn't involve a ramp like this and won't risk backing up traffic?

[Spotto]

It's Liberal Party thinking - disregard for urban planning. The ramp will encourage car travel to the CBD. It's creating demand that isn't even necessarily there.

What are you talking about demand that isn't even there? The roads in and around the city are congested.

If you build this ramp you make it easier for cars to get to those already contested roads, making traffic problems worse. If they persist with this ramp, they should convert one of the lanes on Anzac Highway to a peak hour bus lane, otherwise buses will never get anywhere in the traffic jams.

The second problem with this ramp is it makes it easier to get into the city but not out of the city. So in the morning peak all these additional cars will flood into town using the convenient ramp, but when they want to leave in the evening peak they’ll be stuck on the surface roads?

[ChillyPhilly]

I understand where you're coming from.

But what is the 'forward planning' for? Why are we actively providing an easy solution to a problem that is avoidable and does not need to exist?

Do you have an alternate solution for getting traffic off the freeway and into the city that doesn't involve a ramp like this and won't risk backing up traffic?

Invest in public transport.

[PD2/20]

...

The second problem with this ramp is it makes it easier to get into the city but not out of the city. So in the morning peak all these additional cars will flood into town using the convenient ramp, but when they want to leave in the evening peak they’ll be stuck on the surface roads?

At present the southbound flow from Anzac to South Rd is not inhibited by traffic lights other than a pedestrian crossing. From South Rd to Anzac and the city the flow conflicts with the east- and westbound flows on Anzac and so requires traffic lights at the junction. The ramp would eliminate the conflicts and increase the distance between the tunnel mouth and the merge point on to Anzac and reduce the chance of queuing back into the tunnel.