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[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Fri Mar 22, 2019 11:05 am
by GrowAdelaide
There are issues with the Liberal version regardless of whether lanes are widened, and that you don't need to be an engineer to understand, e.g. turning right on to Springbank from Goodwood Road will still not allow all of the traffic that wants to get around to get around, even with two lanes (its a lane and a half already) and the majority of times you are caught back at the daws Road lights for at least one change before being able to proceed.
[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Fri Mar 22, 2019 12:45 pm
by SBD
GrowAdelaide wrote: ↑Fri Mar 22, 2019 11:05 am
There are issues with the Liberal version regardless of whether lanes are widened, and that you don't need to be an engineer to understand, e.g. turning right on to Springbank from Goodwood Road will still not allow all of the traffic that wants to get around to get around, even with two lanes (its a lane and a half already) and the majority of times you are caught back at the daws Road lights for at least one change before being able to proceed.
The plan appears to be to make it structurally just one intersection instead of two, despite the side roads not being aligned. The corresponding traffic light changes might address that concern. whether it's engineering or modelling, how do you know that the experts' advice is not as good as your understanding?
[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Sat Mar 23, 2019 8:07 am
by kymbosa
GrowAdelaide wrote: ↑Fri Mar 22, 2019 11:05 am
There are issues with the Liberal version regardless of whether lanes are widened, and that you don't need to be an engineer to understand, e.g. turning right on to Springbank from Goodwood Road will still not allow all of the traffic that wants to get around to get around, even with two lanes (its a lane and a half already) and the majority of times you are caught back at the daws Road lights for at least one change before being able to proceed.
In short the liberal plan is to replace a dog leg with a dog leg. So it’s like putting make-up on a pig, it’s still a pig.
[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Sat Mar 23, 2019 11:08 am
by ChillyPhilly
It replaces two traffic light intersections with two slightly bigger traffic light intersections. Where's the improvement?
With the realignment, it would have not only removed one of the above, but allowed for more green time for certain directions.
[COM] Re: [PRO] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Sat Mar 23, 2019 12:49 pm
by Waewick
kymbosa wrote:GrowAdelaide wrote: ↑Fri Mar 22, 2019 11:05 am
There are issues with the Liberal version regardless of whether lanes are widened, and that you don't need to be an engineer to understand, e.g. turning right on to Springbank from Goodwood Road will still not allow all of the traffic that wants to get around to get around, even with two lanes (its a lane and a half already) and the majority of times you are caught back at the daws Road lights for at least one change before being able to proceed.
In short the liberal plan is to replace a dog leg with a dog leg. So it’s like putting make-up on a pig, it’s still a pig.
Surely it's a cost benefit thing.
If the liberals thing costs less and provides better outcomes (which they suggest it does), why wouldn't you do it that way?
[COM] Re: [PRO] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Sat Mar 23, 2019 2:52 pm
by kymbosa
Waewick wrote: ↑Sat Mar 23, 2019 12:49 pm
kymbosa wrote:GrowAdelaide wrote: ↑Fri Mar 22, 2019 11:05 am
There are issues with the Liberal version regardless of whether lanes are widened, and that you don't need to be an engineer to understand, e.g. turning right on to Springbank from Goodwood Road will still not allow all of the traffic that wants to get around to get around, even with two lanes (its a lane and a half already) and the majority of times you are caught back at the daws Road lights for at least one change before being able to proceed.
In short the liberal plan is to replace a dog leg with a dog leg. So it’s like putting make-up on a pig, it’s still a pig.
Surely it's a cost benefit thing.
If the liberals thing costs less and provides better outcomes (which they suggest it does), why wouldn't you do it that way?
Cause what you end up with is another Sexy, in which the libs said the same rubbish about cost effective and “experts” said it was a great way move traffic quickly!
[COM] Re: [PRO] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Sun Mar 24, 2019 11:31 am
by kenget
Waewick wrote: ↑Sat Mar 23, 2019 12:49 pm
kymbosa wrote:GrowAdelaide wrote: ↑Fri Mar 22, 2019 11:05 am
There are issues with the Liberal version regardless of whether lanes are widened, and that you don't need to be an engineer to understand, e.g. turning right on to Springbank from Goodwood Road will still not allow all of the traffic that wants to get around to get around, even with two lanes (its a lane and a half already) and the majority of times you are caught back at the daws Road lights for at least one change before being able to proceed.
In short the liberal plan is to replace a dog leg with a dog leg. So it’s like putting make-up on a pig, it’s still a pig.
Surely it's a cost benefit thing.
If the liberals thing costs less and provides better outcomes (which they suggest it does), why wouldn't you do it that way?
Because it will end up costing more in the long run. Do it right the first time please!
[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Sun Mar 24, 2019 12:41 pm
by Eurostar
Would a roundabout work here?
[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Sun Mar 24, 2019 1:57 pm
by Goodsy
Eurostar wrote: ↑Sun Mar 24, 2019 12:41 pm
Would a roundabout work here?
It's far too busy for a roundabout
[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Sun Mar 24, 2019 7:31 pm
by SBD
Goodsy wrote: ↑Sun Mar 24, 2019 1:57 pm
Eurostar wrote: ↑Sun Mar 24, 2019 12:41 pm
Would a roundabout work here?
It's far too busy for a roundabout
I am not voting for or against a roundabout, but I note that the total traffic through this intersection/these intersections is very similar to the total at the Britannia Roundabout(s), based on totalling the traffic on each feeder road from
http://location.sa.gov.au/viewer/?map=h ... 0&uids=138 The data does not separate direction of travel, nor break it down by hour of the day.
- 39 900 Goodwood Road (south of the intersection)
- 34 300 Goodwood Road (north of the intersection)
- 25 200 Springbank Road
- 17 400 Daws Road
- Total 116 800
- 24 200 Dequetteville Terrace
- 19 400 Fullarton Road (north)
- 18 300 Kensington Road
- 42 900 Fullarton Road (south of the intersection)
- 17 300 Wakefield Road
- Total: 122 100
[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Sun Mar 24, 2019 8:44 pm
by NTRabbit
SBD wrote: ↑Sun Mar 24, 2019 7:31 pm
Goodsy wrote: ↑Sun Mar 24, 2019 1:57 pm
Eurostar wrote: ↑Sun Mar 24, 2019 12:41 pm
Would a roundabout work here?
It's far too busy for a roundabout
I am not voting for or against a roundabout, but I note that the total traffic through this intersection/these intersections is very similar to the total at the Britannia Roundabout(s), based on totalling the traffic on each feeder road from
http://location.sa.gov.au/viewer/?map=h ... 0&uids=138 The data does not separate direction of travel, nor break it down by hour of the day.
- 39 900 Goodwood Road (south of the intersection)
- 34 300 Goodwood Road (north of the intersection)
- 25 200 Springbank Road
- 17 400 Daws Road
- Total 116 800
- 24 200 Dequetteville Terrace
- 19 400 Fullarton Road (north)
- 18 300 Kensington Road
- 42 900 Fullarton Road (south of the intersection)
- 17 300 Wakefield Road
- Total: 122 100
Isn't the Britannia Roundabout slated for replacement by an underpass, that everyone has been trying to avoid because they don't want to pay for one, because it has too much traffic to work as a roundabout today?
[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Sun Mar 24, 2019 9:42 pm
by EBG
Just as a matter of interest there are now 3 turn right lanes from Fullarton Rd onto Greenhill Rd, up from 2 right hand turn lanes as from last Friday (22/3/2019).
[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Sun Mar 24, 2019 9:46 pm
by EBG
The Britannia round about underpass was a Mike Rann idea in 2008,. I'm still waiting!
[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Mon Mar 25, 2019 12:58 pm
by rhino
I was under the impression that the Britannia Roundabout issue was finished as is? Every time I've been through there lately the traffic has flowed and it's been easy to get through there.
[COM] Re: Goodwood/Springbank/Daws Road Intersection
Posted: Mon Mar 25, 2019 2:54 pm
by Norman
According to the modelling done by DPTI, the upgraded dog leg will have more travel time benefits compared to a normal intersection.
