[U/C] Re: Magill/Portrush Road Intersection Upgrade | $98m
Posted: Sun May 03, 2020 2:37 pm
Here is a concept map from March 2020
Adelaide's Premier Development and Construction Site
https://sensational-adelaide.com/forum/
Not to mention, the worst part of this intersection, having regularly travelled through it during peak hour from every direction is Magill Road heading east. How does fixing this intersection improve the five other intersections trucks have to cross along Portrush Road, it doesn't. I say leave this and find a better, long-term solution.
That's exactly the point though, but making turning safer and easier will improve the flow of that intersection. (Turning lanes often trail back so far they impede a non turning lane).Ho Really wrote:I'm at 10-15 minute walking distance from this. I think it is a piece of shite. All it does is it gets a few more vehicles across the intersection on a cycle of lights and then the congestion starts again. Band aid solution (perhaps not even that).
Cheers
But that is a massively expensive tunnel that is not at all close to the budget for this project.Eurostar wrote:A tunnel from north of Magill Road intersection to south of Greenhill Road intersection would work better
Portrush Road is somewhat understandable (as compared to South Road) given that Portrush Road was never originally intended to be the sort of major road it has become with the construction of the Heysen Tunnels and Freeway.bits wrote: ↑Mon May 04, 2020 9:29 amBut that is a massively expensive tunnel that is not at all close to the budget for this project.Eurostar wrote:A tunnel from north of Magill Road intersection to south of Greenhill Road intersection would work better
This gets a few driveways off a major road that should have never had driveways on it to begin with. That is as big a win as the more lanes.
As time goes on I am sure all residential properties will get kicked off Portrush Road as it slowly turns in to the main road it should have always been.
Only in Adelaide do you have every major road lined with driveways and side streets. It is dumb and needs to be undone.
If there is other bottlenecks further up eg Portush/Payneham I am sure they will get upgraded in time also.
If you live on critical sections of South Road, Portrush Road, Cross Road, etc I am sure your house will be removed. It is only a matter of when.
Lower Portrush Road and the bridge over the Torrens only date from the mid-1960s. The OG Road bridge is older, but I suspect traffic trying to get from southeast to northwest Adelaide actually used Fullarton and Hackney Roads.Nort wrote: ↑Mon May 04, 2020 11:54 amPortrush Road is somewhat understandable (as compared to South Road) given that Portrush Road was never originally intended to be the sort of major road it has become with the construction of the Heysen Tunnels and Freeway.bits wrote: ↑Mon May 04, 2020 9:29 amBut that is a massively expensive tunnel that is not at all close to the budget for this project.Eurostar wrote:A tunnel from north of Magill Road intersection to south of Greenhill Road intersection would work better
This gets a few driveways off a major road that should have never had driveways on it to begin with. That is as big a win as the more lanes.
As time goes on I am sure all residential properties will get kicked off Portrush Road as it slowly turns in to the main road it should have always been.
Only in Adelaide do you have every major road lined with driveways and side streets. It is dumb and needs to be undone.
If there is other bottlenecks further up eg Portush/Payneham I am sure they will get upgraded in time also.
If you live on critical sections of South Road, Portrush Road, Cross Road, etc I am sure your house will be removed. It is only a matter of when.
Looking at the map again, I hope they are actually buying more property there than they actually need to. With this plan there would be multiple driveways on the South side of the intersection directly on the turn left lane just after it opens up. That seems like a massive accident risk from vehicles entering and leaving driveways.
I agree in principle, but Magill Road is quite narrow. Would you suppose a single median lane that reverses flow based on morning/evening peak?1NEEDS2POST wrote: ↑Wed May 06, 2020 11:40 pmThere needs to be median bus lanes on Magill Rd from Portrush Rd into the city. That will relieve most of the congestion for buses and it won't cost much. Seeing buses fly past while sitting in traffic will encourage a shift to public transport too.
A single bus lane is adequate for a road like this. It could reverse direction at any time with automatic block signalling (like a single track railway). As far as I know, there is only one implementation of this, in Eugene, Oregon. Here's a video of it in action, on both a fully paved road and on grass in the median strip. It's really cool!ChillyPhilly wrote: ↑Wed May 13, 2020 1:00 pmI agree in principle, but Magill Road is quite narrow. Would you suppose a single median lane that reverses flow based on morning/evening peak?1NEEDS2POST wrote: ↑Wed May 06, 2020 11:40 pmThere needs to be median bus lanes on Magill Rd from Portrush Rd into the city. That will relieve most of the congestion for buses and it won't cost much. Seeing buses fly past while sitting in traffic will encourage a shift to public transport too.