Driving on the motorway/ Keeping left

Driving on the motorway/ Keeping left

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Discussion

Strudul

1,588 posts

85 months

Saturday 1st July 2017
quotequote all
vonhosen said:
Strudul said:
vonhosen said:
Show me a 3 lane motorway that would have those lines.

Extend that illustration however you like to make those the optimum lines.
What part of "imaginary" don't you understand?

The figure illustrated the very simple concept of moving to the left lane for left turns and the right lane for right turns. It's not that hard.

However, I believe this should satisfy the criteria.

Red = keep left
Orange = transfer
Yellow = keep right

Hell, even just continuing along from the M4 you'd be keeping left on entry....

Admittedly it's only 2 lanes, but I have better things to do than search for road layouts, so you'll just have to accept the concept and that a 3-lane variant probably exists, regardless of how irrelevant it is to the point in hand.

Edited by Strudul on Saturday 1st July 02:13
Fail
The best line wouldn't be keeping left all through the first left hander (all of the red), so there's no point going further.

As I said, extend his illustration however you like to end up with lines he's illustrated as optimal.
What?? laugh

Are you honestly trying to tell me that a small circle has a bigger circumference than a large circle? There really is no point going further if you don't understand basic primary school maths...

vonhosen

40,234 posts

217 months

Saturday 1st July 2017
quotequote all
Strudul said:
vonhosen said:
Strudul said:
vonhosen said:
Show me a 3 lane motorway that would have those lines.

Extend that illustration however you like to make those the optimum lines.
What part of "imaginary" don't you understand?

The figure illustrated the very simple concept of moving to the left lane for left turns and the right lane for right turns. It's not that hard.

However, I believe this should satisfy the criteria.

Red = keep left
Orange = transfer
Yellow = keep right

Hell, even just continuing along from the M4 you'd be keeping left on entry....

Admittedly it's only 2 lanes, but I have better things to do than search for road layouts, so you'll just have to accept the concept and that a 3-lane variant probably exists, regardless of how irrelevant it is to the point in hand.

Edited by Strudul on Saturday 1st July 02:13
Fail
The best line wouldn't be keeping left all through the first left hander (all of the red), so there's no point going further.

As I said, extend his illustration however you like to end up with lines he's illustrated as optimal.
What?? laugh

Are you honestly trying to tell me that a small circle has a bigger circumference than a large circle? There really is no point going further if you don't understand basic primary school maths...
laugh

You're the one advocating keeping on a single (smaller circumference) line keeping left through the whole red line portion, that isn't optimal.

You still haven't shown an extended version of his illustration where the red line as he has placed it would be the optimal line.

Strudul

1,588 posts

85 months

Saturday 1st July 2017
quotequote all
vonhosen said:
Strudul said:
vonhosen said:
Strudul said:
vonhosen said:
Show me a 3 lane motorway that would have those lines.

Extend that illustration however you like to make those the optimum lines.
What part of "imaginary" don't you understand?

The figure illustrated the very simple concept of moving to the left lane for left turns and the right lane for right turns. It's not that hard.

However, I believe this should satisfy the criteria.

Red = keep left
Orange = transfer
Yellow = keep right

Hell, even just continuing along from the M4 you'd be keeping left on entry....

Admittedly it's only 2 lanes, but I have better things to do than search for road layouts, so you'll just have to accept the concept and that a 3-lane variant probably exists, regardless of how irrelevant it is to the point in hand.

Edited by Strudul on Saturday 1st July 02:13
Fail
The best line wouldn't be keeping left all through the first left hander (all of the red), so there's no point going further.

As I said, extend his illustration however you like to end up with lines he's illustrated as optimal.
What?? laugh

Are you honestly trying to tell me that a small circle has a bigger circumference than a large circle? There really is no point going further if you don't understand basic primary school maths...
laugh

You're advocating keeping on a single (smaller circumference) line keeping left through the whole red line portion, that isn't optimal.

You still haven't shown an extended version of his illustration where the red line as he has placed it would be the optimal line.
It's shorter, therefore optimal.

It sounds like you are getting confused between shorter (optimal) and the racing line (not optimal). It's motorway driving at 70mph, not the bloody Nürburgring.

I've shown you 2 extended versions where the red line would be optimal.


Let me put it in different terms to see if I can help you understand...

Say you are running round an oval track (see below), what would be the shortest, and therefore fastest line.


Hint: there is a reason the starting lines are staggered.




vonhosen

40,234 posts

217 months

Saturday 1st July 2017
quotequote all
Shortest wasn't his only criteria for the line as drawn, optimal has to consider all his criteria.
You haven't extended his lines as drawn (which is what it's about, not some others).

Edited by vonhosen on Saturday 1st July 12:14

Strudul

1,588 posts

85 months

Saturday 1st July 2017
quotequote all
vonhosen said:
Shortest wasn't his only criteria for the line as drawn, optimal has to consider all his criteria.
Sorry, but you are chatting some proper bks.
Strudul said:
If there is absolutely nobody else on the road in sight, I tend to ignore lanes and just drive the shortest path possible.

vonhosen

40,234 posts

217 months

Saturday 1st July 2017
quotequote all
Shortest wasn't the only criteria for the line as drawn, optimal has to consider all the criteria.
You haven't extended the lines as originally drawn (which is what it's about, not some others - those criteria, those lines & what would be optimal lines for it).

Including tyre wear which will include cornering loads.
Strudul said:
  • Less distance = saved fuel / time / wear. Not much, but every little helps.
  • Increases mental awareness. The last thing I want at 1am on an empty road is to get bored and therefore tired, so this keeps the brain stimulated.
  • It's something to do and is more fun.
I explicitly said I only do it if there is absolutely nobody else on the road in sight, so there is no danger to others. As soon as I see someone gaining from behind, I pull over into the slow lane so they can pass safely.

Strudul

1,588 posts

85 months

Saturday 1st July 2017
quotequote all
vonhosen said:
Shortest wasn't the only criteria for the line as drawn, optimal has to consider all the criteria.
You haven't extended the lines as originally drawn (which is what it's about, not some others - those criteria, those lines & what would be optimal lines for it).

Including tyre wear which will include cornering loads.
Strudul said:
  • Less distance = saved fuel / time / wear. Not much, but every little helps.
  • Increases mental awareness. The last thing I want at 1am on an empty road is to get bored and therefore tired, so this keeps the brain stimulated.
  • It's something to do and is more fun.
I explicitly said I only do it if there is absolutely nobody else on the road in sight, so there is no danger to others. As soon as I see someone gaining from behind, I pull over into the slow lane so they can pass safely.
1) Shortest is the only initial criteria, the rest were justifications
2) It's my criteria, so it is whatever I want it to be. Optimal in my case is adhering to my criteria, not yours.
3) You're reading into it way too much, it was a quick diagram I threw together
4) The difference in tyre wear is irrelevant
5) I did extend the lines as originally drawn

vonhosen

40,234 posts

217 months

Saturday 1st July 2017
quotequote all
Strudul said:
vonhosen said:
Shortest wasn't the only criteria for the line as drawn, optimal has to consider all the criteria.
You haven't extended the lines as originally drawn (which is what it's about, not some others - those criteria, those lines & what would be optimal lines for it).

Including tyre wear which will include cornering loads.
Strudul said:
  • Less distance = saved fuel / time / wear. Not much, but every little helps.
  • Increases mental awareness. The last thing I want at 1am on an empty road is to get bored and therefore tired, so this keeps the brain stimulated.
  • It's something to do and is more fun.
I explicitly said I only do it if there is absolutely nobody else on the road in sight, so there is no danger to others. As soon as I see someone gaining from behind, I pull over into the slow lane so they can pass safely.
1) Shortest is the only initial criteria, the rest were justifications
2) It's my criteria, so it is whatever I want it to be. Optimal in my case is adhering to my criteria, not yours.
3) You're reading into it way too much, it was a quick diagram I threw together
4) The difference in tyre wear is irrelevant
5) I did extend the lines as originally drawn
My first reply was a question in relation to what I've quoted from you above asking if that was your goal (as outlined above) why do that line.
You haven't extended the original diagram to show the road & line prior to & after the original.

Strudul

1,588 posts

85 months

Saturday 1st July 2017
quotequote all
vonhosen said:
My first reply was a question in relation to what I've quoted from you above asking if that was your goal (as outlined above) why do that line.
You haven't extended the original diagram to show the road & line prior to & after the original.
Your first question was answered in the first bullet point:
Strudul said:
  • Less distance
I did extend the original diagram to show the road prior:
Strudul said:

vonhosen

40,234 posts

217 months

Saturday 1st July 2017
quotequote all
Strudul said:
vonhosen said:
My first reply was a question in relation to what I've quoted from you above asking if that was your goal (as outlined above) why do that line.
You haven't extended the original diagram to show the road & line prior to & after the original.
Your first question was answered in the first bullet point:
Strudul said:
  • Less distance
I did extend the original diagram to show the road prior:
Strudul said:
When you first posted saying shortest distance I didn't reply to the post.

When you next posted adding the additional reasoning which I quoted a little earlier I questioned the lines as they didn't satisfy the additional comments.

Your little diagram above is not the same road curves or lines through the curves as the original and can not therefore be an extension of the original.

SlimJim16v

5,662 posts

143 months

Saturday 1st July 2017
quotequote all
Zzzzzzzzzzzzzzzzzz!

Strudul

1,588 posts

85 months

Saturday 1st July 2017
quotequote all
vonhosen said:
When you first posted saying shortest distance I didn't reply to the post.

When you next posted adding the additional reasoning which I quoted a little earlier I questioned the lines as they didn't satisfy the additional comments.

Your little diagram above is not the same road curves or lines through the curves as the original and can not therefore be an extension of the original.
I can't tell if you're an idiot, or just being purposefully awkward...

The additional reasons were "increased mental awareness" and "something fun to do".

The first reason I expanded on by saying that "less distance = saved fuel / time / wear", which it generally will.

It is a shorter path, therefore less distance.
If you travel less distance at the same speed, you will save time.
These are facts and are not up for discussion.

As for fuel and wear, you are making huge assumptions on the layout of the road (pre / post and scale / distance). Taking a tighter corner may cause more tyre wear for example, but if you are travelling for less time in total there is less wear on a multitude of other components.

The diagram provided before clearly illustrates an extension of the original, but since you evidently lack the ability to connect the dots,:

However, once again, stop being a pedant and reading into it so much. It's a MS paint drawing done in a couple of minutes to demonstrate the shortest route possible, nothing more.

vonhosen

40,234 posts

217 months

Saturday 1st July 2017
quotequote all
It's till not the best lines for the points I was addressing that you posted.

Strudul

1,588 posts

85 months

Saturday 1st July 2017
quotequote all
vonhosen said:
It's till not the best lines for the points I was addressing that you posted.
The only point you could possibly argue is fuel / wear, and i already explained why that is dependant on other variables and you can't make a conclusion just from the diagram.

Vipers

32,890 posts

228 months

Saturday 1st July 2017
quotequote all
My head is hurting..............

Dagnir

1,934 posts

163 months

Wednesday 5th July 2017
quotequote all
He is trolling you or an idiot or a pedant.

Just stop replying and it will go away.....please!

*Al*

3,830 posts

222 months

Wednesday 5th July 2017
quotequote all
I've given up with MLMs as someone said most know they are driving in the wrong lane, I cautiously pass in the left lane but there is a potential warning to this, don't do it just before an exit as they might wake up and move left to exit!

Rawwr

22,722 posts

234 months

Wednesday 5th July 2017
quotequote all
I used to commute from St Neots, Cambridgeshire to Ashford, Middlesex a few times a week. On the return journey, which was around 4.30pm, I always played the same game...

  • Join M25 at J13 and make a mental note of either the car in front or behind me on the sliproad, which would always, without fail, go straight to lane 3
  • I stick to lane 1 unless speed drops below 50mph
  • See how long I could keep sight of the car I'd made a mental note of earlier
On more than one occasion, I could still see the marked car by the time I got to J21 for the M1. I've even joined the M1 with them behind me before they race off to lane 3 again. Really quite extraordinary.

SpeckledJim

31,608 posts

253 months

Wednesday 5th July 2017
quotequote all
Mumsnet laugh at us. This is why.


SteveSteveson

3,209 posts

163 months

Wednesday 5th July 2017
quotequote all
Dagnir said:
He is trolling you or an idiot or a pedant.

Just stop replying and it will go away.....please!
Why can't he be all three?