Roundabout exits - third from left lane

Roundabout exits - third from left lane

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Blockbuster

Original Poster:

218 posts

60 months

Wednesday 11th December 2019
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Johnnytheboy said:
Is the next/last right turning a more significant one, e.g. the main in/out road?
There’s 2 roads in/out and they are off the third and fourth exits. I would say the third exit (the one we were all going for) is probably the more popular road for both leaving and entering the retail park.

denis362832

22 posts

50 months

Sunday 12th January 2020
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The roundabout sign is very important...

jchesh

160 posts

70 months

Thursday 30th January 2020
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Mandalore said:
Personal view in the absence of any dedicated/over riding lane/marking is to use the RH lane if you are going straight over or more than 180deg around a RAB.
Default lane for straight on is the left lane, unless there are two lanes on the exit, in which case left lane for the exit's left lane, right lane for the exit's right lane.

Graveworm

8,476 posts

70 months

Thursday 30th January 2020
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jchesh said:
Default lane for straight on is the left lane, unless there are two lanes on the exit, in which case left lane for the exit's left lane, right lane for the exit's right lane.
Based on what, the default lane is the "Appropriate" lane, if straight on is the third fourth or greater exit is it? If the first exit Is a dual carriageway is it. If there are only 2 exits and that's the second is it.

nonsequitur

20,083 posts

115 months

Sunday 16th February 2020
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In a tuk-tuk going across a roundabout in Delhi is far more exiting than anything on here.yikes

2 sMoKiN bArReLs

30,230 posts

234 months

Sunday 16th February 2020
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nonsequitur said:
far more exiting than anything on here.yikes
Exiting or entering? scratchchin

nonsequitur

20,083 posts

115 months

Monday 17th February 2020
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2 sMoKiN bArReLs said:
nonsequitur said:
far more exiting than anything on here.yikes
Exiting or entering? scratchchin
All roads into a RAB are enter and exit, but in any order. The circuit around the middle is two way traffic but not necessarily in order. Oh, as well as traffic there are cows, overloaded bicycles, pedestrians and buses. Not in that order. I musn't forget the policeman in the middle controlling, yes controlling, the chaos.

jchesh

160 posts

70 months

Monday 17th February 2020
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Graveworm said:
jchesh said:
Default lane for straight on is the left lane, unless there are two lanes on the exit, in which case left lane for the exit's left lane, right lane for the exit's right lane.
Based on what, the default lane is the "Appropriate" lane, if straight on is the third fourth or greater exit is it? If the first exit Is a dual carriageway is it. If there are only 2 exits and that's the second is it.
Based on the highway code:

'When taking any intermediate exit [rather than the first exit or "an exit to the right or going full circle"'], unless signs or markings indicate otherwise
select the appropriate lane on approach to and on the roundabout'

and

'You should always drive in the left-hand lane when the road ahead is clear.'

I did say 'default', not 'only'.

If the first exit has two lanes (which is what you might have meant by dual carriageway), and both approach lanes are meant to be used for this, then lane markings and signs will indicate as such. If they don't, then taking the first exit's second lane from the right-hand approach lane is a risky manoeuvre. If you actually meant a dual carriageway, multi-laned or otherwise, meaning that there'd be a first exit, a second no-exit entrance, followed by the straight-on exit, I see no reason why the presence of the incoming d/c entrance between the first and second exits makes it more appropriate to approach the roundabout in the right-hand lane when intending to take the second straight-on exit. If you do, perhaps you could explain why?

If there are only two exits and the second is straight on then unless signs and lane markings indicate (which they might well do) then there is again no reason not to use lane one for this exit. If on approach there are vehicles in the left-hand lane all indicating left, then using the right-hand lane for the second exit is perfectly acceptable, but if lane one is empty then there's no need. Again, I said 'default', by which I meant 'default unless signs, markings or circumstances make another choice more appropriate'.

Edited by jchesh on Monday 17th February 16:49

Graveworm

8,476 posts

70 months

Monday 17th February 2020
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jchesh said:
Based on the highway code:

'When taking any intermediate exit [rather than the first exit or "an exit to the right or going full circle"'], unless signs or markings indicate otherwise
select the appropriate lane on approach to and on the roundabout'

and

'You should always drive in the left-hand lane when the road ahead is clear.'

I did say 'default', not 'only'.

If the first exit has two lanes (which is what you might have meant by dual carriageway), and both approach lanes are meant to be used for this, then lane markings and signs will indicate as such. If they don't, then taking the first exit's second lane from the right-hand approach lane is a risky manoeuvre. If you actually meant a dual carriageway, multi-laned or otherwise, meaning that there'd be a first exit, a second no-exit entrance, followed by the straight-on exit, I see no reason why the presence of the incoming d/c entrance between the first and second exits makes it more appropriate to approach the roundabout in the right-hand lane when intending to take the second straight-on exit. If you do, perhaps you could explain why?

If there are only two exits and the second is straight on then unless signs and lane markings indicate (which they might well do) then there is again no reason not to use lane one for this exit. If on approach there are vehicles in the left-hand lane all indicating left, then using the right-hand lane for the second exit is perfectly acceptable, but if lane one is empty then there's no need. Again, I said 'default', by which I meant 'default unless signs, markings or circumstances make another choice more appropriate'.

Edited by jchesh on Monday 17th February 16:49
So the appropriate lane then.
As for your second quote as that is from the motorway rules - feel free to do that on motorway roundabouts.

Edited by Graveworm on Monday 17th February 18:08

jchesh

160 posts

70 months

Monday 17th February 2020
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Graveworm said:
As for your second quote as that is from the motorway rules - feel free to do that on motorway roundabouts.
Edited by Graveworm on Monday 17th February 18:08
Good point my friend Graveworm.

Here's another bit from the HC – just a guide but...the blue car's ahead of the green car – why's it not using the right-hand lane to go straight ahead at the roundabout?





Edited by jchesh on Monday 17th February 21:41

DocSteve

718 posts

221 months

Monday 17th February 2020
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nonsequitur said:
All roads into a RAB are enter and exit, but in any order. The circuit around the middle is two way traffic but not necessarily in order. Oh, as well as traffic there are cows, overloaded bicycles, pedestrians and buses. Not in that order. I musn't forget the policeman in the middle controlling, yes controlling, the chaos.
Haha, I recently spent 2 weeks self driving 800km around Sri Lanka including in Colombo during the rush hour. The police were hilarious with the whistle blowing and somewhat ambiguous hand gestures. I'm surprised they don't get killed... Good experience though to add another country to the list, the buses are the most dangerous things there, racing each other for fares. There, it absolutely applies that anything and everything can and will happen but yet you still need to make good progress safely. I imagine if the average Sri Lankan driver came here they'd be taken out by someone on the first day by somebody who was "in the right" and vice versa a lot of drivers from here would be taken out there for thinking they were "in the right"..... That's, as what has already been said, AD is supposed to be about first and foremost. Making progress and rapid progress at that comes afterwards....

Graveworm

8,476 posts

70 months

Tuesday 18th February 2020
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jchesh said:
Good point my friend Graveworm.

Here's another bit from the HC – just a guide but...the blue car's ahead of the green car – why's it not using the right-hand lane to go straight ahead at the roundabout?





Edited by jchesh on Monday 17th February 21:41
I never said use right to go straight ahead, I said use the appropriate one - which is what the Highway code, as you quoted, says. There is no default. Straight on could be the fourth, fifth and final or first exit with 1-5 lanes on the approach.

Edited by Graveworm on Tuesday 18th February 00:23

jchesh

160 posts

70 months

Tuesday 18th February 2020
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Graveworm said:
I never said use right to go straight ahead, I said use the appropriate one - which is what the Highway code, as you quoted, says. There is no default. Straight on could be the fourth, fifth and final or first exit with 1-5 lanes on the approach.

Edited by Graveworm on Tuesday 18th February 00:23
Sure, absolutely. Maybe I ought to have said 'the default on a standard cruciform roundabout' or something.

For some reason there are quite a few roundabouts round here (Chester) where the sign approaching a roundabout is laid out in what seems a perverse fashion, for example there is one where the first exit is physically at eight o'clock, second at eleven, third at two o'clock, and fourth at four o'clock, yet the sign shows first at seven o'clock, second at nine, third at eleven o'clock and fourth at two o'clock, or thereabouts. There are two lanes on approach. Could this simply be an attempt to encourage one to use the left lane for all except the fourth exit?

Here's the roundabout on the map



and here's the sign when approaching from the red marker on the map



Edited by jchesh on Tuesday 18th February 00:42

DocSteve

718 posts

221 months

Tuesday 18th February 2020
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John Lyon said to me that highway engineers disconnect the depictions on the signs from the actual configuration of the junction/roundabout in an attempt to slow people down (rather like the screens put in place before some roundabouts to try and prevent high speed approaches due to perceived visibility).

It is true that roundabouts can create a lot of confusion and one should expect those without local knowledge (and even those that do - they should realise config may change if they haven't been there for a while) to sometimes struggle. Again, the AD mantra comes into play here: know what is going on around you, anticipate things as early as possible and adjust your speed and position appropriately and there should rarely be an issue. Use of the horn as a rebuke is obviously not correct but the OP seems keen to learn, so we should thank him for the post he has shared. Most people would have just thought indignantly that they were in the right there and never reflected.

Mandalore

4,165 posts

112 months

Tuesday 18th February 2020
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jchesh said:
Good point my friend Graveworm.

Here's another bit from the HC – just a guide but...the blue car's ahead of the green car – why's it not using the right-hand lane to go straight ahead at the roundabout?





Edited by jchesh on Monday 17th February 21:41
That picture is designed to explain indicating and lane position.

As the exit straight over is also a dual carriageway, both vehicles could go straight over in their respective lanes. Clearly.



jchesh

160 posts

70 months

Tuesday 18th February 2020
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Mandalore said:
That picture is designed to explain indicating and lane position.

As the exit straight over is also a dual carriageway, both vehicles could go straight over in their respective lanes. Clearly.
None of those exits is a dual carriageway, but yes, clearly.