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Re: Gepps Cross Intersection

Posted: Wed Jun 12, 2013 1:04 pm
by rev
A round about will fix it.

Re: Gepps Cross Intersection

Posted: Wed Jun 12, 2013 7:17 pm
by claybro
Re the Gepps Cross intersection and the varying points further Northeast. I believe that
1. The most likely outcome for the Northeast Corridor is a conversion of the O Bahn to heavy or light rail as this is mainly a commuter area.(freeways should not be built for commuters)
2. Without the Modbury freeway, it will not be worthwhile sending the PREXY east up Montague road to feed this area.
3. Commercial traffic needs to get from the Southeast entry point SE Freeway to the Northwestern suburbs.
4. An upgrade of Grand junction provides the most direct route for(3)
5. An upgrade of Grand Junction would solve the Gepps Cross problem, AND provide an East West solution for the mid Northern suburbs.
6. Traffic patterns in the Northern suburbs will be moved further West with the completion of the Northern Connector, further solving congestion on Main North road.

Re: Gepps Cross Intersection

Posted: Thu Jun 13, 2013 8:29 am
by rev
claybro wrote:Re the Gepps Cross intersection and the varying points further Northeast. I believe that
1. The most likely outcome for the Northeast Corridor is a conversion of the O Bahn to heavy or light rail as this is mainly a commuter area.(freeways should not be built for commuters)
2. Without the Modbury freeway, it will not be worthwhile sending the PREXY east up Montague road to feed this area.
3. Commercial traffic needs to get from the Southeast entry point SE Freeway to the Northwestern suburbs.
4. An upgrade of Grand junction provides the most direct route for(3)
5. An upgrade of Grand Junction would solve the Gepps Cross problem, AND provide an East West solution for the mid Northern suburbs.
6. Traffic patterns in the Northern suburbs will be moved further West with the completion of the Northern Connector, further solving congestion on Main North road.
Why not divert the end of Port Wakefield Road to just north of the Drive In's to meet up with Main North Road there? thus making the Gepps Cross intersection a regular 4 way..?
Then in the middle of Grand Junction, build and over pass..?

Re: Gepps Cross Intersection

Posted: Thu Jun 13, 2013 9:25 am
by monotonehell
Aidan wrote:Shuz, what you refer to as my "ridiculous notion" is actually standard practice among engineers and planners (and indeed anyone who takes an interest in roads) the world over. And with good reason: it accurately describes the situation.

Using x to mean + is a mistake - that's all there is to it. Of course this board isn't the first place people made that mistake and it won't be the last - but AFAIK it is the only place I know of where people, when informed of their error, still try to argue that it's not an error and 3x3 really does equal 6.

Using 3x3 to mean 3+3 is like claiming we should make the Dukes Highway safer by making it a duel carriageway!
Pedantry, but correct.

Re: Gepps Cross Intersection

Posted: Thu Jun 13, 2013 9:58 am
by [Shuz]
Oh for the love of God, who cares.

If I just may point out - the 'experts' always refer to it verbally as 'three by three'. If we're going to get 'technical', mathematically speaking, 'by' also means times, multiplied, etc. So in the verbal context, and I quote you, Aidan, "using x to mean + is a mistake". Oh, the horror! Won't someone please think of the children! #sarcasm

So on the one hand, verbally its said three 'by' three, when 'technically' they actually mean three 'and' three, or three 'plus' three. Same goes for the written translation. I say 3x3, when I mean 3+3. At the end of the day, it's the same fucking thing. I don't imagine that you are going to get into the habit of correcting every single person whenever they verbally say it 'three by three'.

Even if 3x3 was to be interpreted literally, how would that configuration even work? Three lanes one way, three lanes the other way, and three lanes... err... just because? I don't think such a configuration even exists. 2+2 and 2x2 both equal four, so there's no argument there to be had.

And in the one instance where 4x4 were to be interpreted literally (16 lanes in total) doesn't exist either. As far as I'm aware, the 401 Freeway in Toronto - which is the widest freeway in the world comes close (14 lanes total) as it consists of seven lanes, broken up into two segments going one way, three lanes, and the other four, and another seven lanes in two segments of three and four lanes in the other direction. (see pic below) To some, this would be 4+3+3+4, or to others, 7+7 or 7x7.

Image

Re: Gepps Cross Intersection

Posted: Thu Jun 13, 2013 10:13 am
by monotonehell
[Shuz] wrote:Oh for the love of God, who cares.
You and Aidan do. ;) :lol:

Re: Gepps Cross Intersection

Posted: Thu Jun 13, 2013 10:34 am
by Nathan
I say 3x3, when I mean 3+3. At the end of the day, it's the same fucking thing
Do you actually read through what you write, or have you realised you've dug yourself too far into your position that you must continue to defend it regardless of logic?

Re: Gepps Cross Intersection

Posted: Thu Jun 13, 2013 10:47 am
by rev
Nathan wrote:
I say 3x3, when I mean 3+3. At the end of the day, it's the same fucking thing
Do you actually read through what you write, or have you realised you've dug yourself too far into your position that you must continue to defend it regardless of logic?
:hilarious:

Re: Gepps Cross Intersection

Posted: Thu Jun 13, 2013 6:42 pm
by claybro
rev wrote:A round about will fix it.
No for this intersection we would need our latest creation, the "double roundabout" :lol:

Re: Gepps Cross Intersection

Posted: Mon Jun 17, 2013 12:25 pm
by rhino
claybro wrote:Re the Gepps Cross intersection and the varying points further Northeast. I believe that
1. The most likely outcome for the Northeast Corridor is a conversion of the O Bahn to heavy or light rail as this is mainly a commuter area.(freeways should not be built for commuters)
2. Without the Modbury freeway, it will not be worthwhile sending the PREXY east up Montague road to feed this area.
3. Commercial traffic needs to get from the Southeast entry point SE Freeway to the Northwestern suburbs.
4. An upgrade of Grand junction provides the most direct route for(3)
5. An upgrade of Grand Junction would solve the Gepps Cross problem, AND provide an East West solution for the mid Northern suburbs.
6. Traffic patterns in the Northern suburbs will be moved further West with the completion of the Northern Connector, further solving congestion on Main North road.
What Claybro said.
rev wrote: Why not divert the end of Port Wakefield Road to just north of the Drive In's to meet up with Main North Road there?
I have never been in favour of this option.
Do you use Port Wakefield Road to commute to Adelaide, or to drive freight towards Adelaide?
If so, would you prefer to divert to Main North Road, adding distance and going through another set of traffic lights, where you would have to turn right, to the current situation?
If you are not a regular user of this route, perhaps you should consult with someone who is. I certainly would not appreciate someone who does not use my regular route telling me that it should be made longer and I should go through more intersections controlled by traffic lights.

Re: Gepps Cross Intersection

Posted: Mon Jun 17, 2013 12:35 pm
by rhino
[Shuz] wrote:
Image
I like the idea of this road being built, however I believe it shoud go straight over or under Main North Road, with only a slip lane from MNR (southbound) on to the new road (eastbound) and an exit from the new road (westbound) to MNR (northbound). The only reason for the new road would be for traffic to avoid Gepps Cross intersection (the "Grand Junction"?).

On reflection, perhaps a slip lane from the new road (westbound) on to MNR (southbound) could be justified. Perhaps.

Re: Gepps Cross Intersection

Posted: Mon Jan 06, 2014 12:14 pm
by Hooligan
[Shuz] wrote:Oh for the love of God, who cares.

If I just may point out - the 'experts' always refer to it verbally as 'three by three'. If we're going to get 'technical', mathematically speaking, 'by' also means times, multiplied, etc. So in the verbal context, and I quote you, Aidan, "using x to mean + is a mistake". Oh, the horror! Won't someone please think of the children! #sarcasm

So on the one hand, verbally its said three 'by' three, when 'technically' they actually mean three 'and' three, or three 'plus' three. Same goes for the written translation. I say 3x3, when I mean 3+3. At the end of the day, it's the same fucking thing. I don't imagine that you are going to get into the habit of correcting every single person whenever they verbally say it 'three by three'.

Even if 3x3 was to be interpreted literally, how would that configuration even work? Three lanes one way, three lanes the other way, and three lanes... err... just because? I don't think such a configuration even exists. 2+2 and 2x2 both equal four, so there's no argument there to be had.

And in the one instance where 4x4 were to be interpreted literally (16 lanes in total) doesn't exist either. As far as I'm aware, the 401 Freeway in Toronto - which is the widest freeway in the world comes close (14 lanes total) as it consists of seven lanes, broken up into two segments going one way, three lanes, and the other four, and another seven lanes in two segments of three and four lanes in the other direction. (see pic below) To some, this would be 4+3+3+4, or to others, 7+7 or 7x7.

Image


If I buy a car that says it's a 4x4 on it does that mean I have 16 wheel drive?

Re: Gepps Cross Intersection

Posted: Mon Jan 06, 2014 5:01 pm
by Aidan
Hooligan wrote:If I buy a car that says it's a 4x4 on it does that mean I have 16 wheel drive?
No. But nor does it mean you have 8 wheel drive.

(Really, was there any point in reviving a thread after nearly 6 months of inactivity just to ask that?)

Re: Gepps Cross Intersection

Posted: Mon Jan 06, 2014 5:53 pm
by Hooligan
Yes, yes it was.

And i'd do it again.

Re: Gepps Cross Intersection

Posted: Mon Jan 06, 2014 6:23 pm
by monotonehell
Hooligan wrote:Yes, yes it was.
aidia.jpg
aidia.jpg (9.94 KiB) Viewed 6116 times
And i'd do it again.