Boards.ie uses cookies. By continuing to browse this site you are agreeing to our use of cookies. Click here to find out more x
Post Reply  
 
 
Thread Tools Search this Thread
07-01-2019, 13:28   #1
Mankyspuds
Registered User
 
Mankyspuds's Avatar
 
Join Date: Sep 2010
Posts: 152
Roundabout Query

Quick question about a roundabout and something I see everyday.

The roundabout in question is at Dundrum to head northbound on the M50.

If you are driving down from Sandyford junction, it is two lanes all the way down, when you get the roundabout it is still two lanes all the way round. My question is: I see cars coming down on the left lane and going all the way around and exit on the 2nd exit(under the bridge and onto the Grange road roundabout) Is this allowed?? or is both lanes for turning right and the left is straight only on to the M50 only?

Thanks in advance
Mankyspuds is offline  
Advertisement
07-01-2019, 13:33   #2
tom1ie
Registered User
 
Join Date: Nov 2007
Posts: 2,067
Quote:
Originally Posted by Mankyspuds View Post
Quick question about a roundabout and something I see everyday.

The roundabout in question is at Dundrum to head northbound on the M50.

If you are driving down from Sandyford junction, it is two lanes all the way down, when you get the roundabout it is still two lanes all the way round. My question is: I see cars coming down on the left lane and going all the way around and exit on the 2nd exit(under the bridge and onto the Grange road roundabout) Is this allowed?? or is both lanes for turning right and the left is straight only on to the M50 only?

Thanks in advance
If you are turning right on a roundabout use the right hand lane.
If you are turning left (which you can’t in this case) or going straight ahead, use the left hand lane.
However if I remember correctly on this roundabout, straight ahead is onto a dual lane slip road, therefore you could be in the right hand lane and proceed straight also.
Under no circumstances should you be in the left hand lane and taking the right hand exit!
tom1ie is offline  
(3) thanks from:
07-01-2019, 17:46   #3
Isambard
Registered User
 
Isambard's Avatar
 
Join Date: Oct 2016
Posts: 3,182
depends if there are markings really but if there aren't any, you can take the straight ahead exit from either approach lane if there are two exit lanes.
Isambard is offline  
07-01-2019, 18:27   #4
.G.
Registered User
 
.G.'s Avatar
 
Join Date: Jan 2006
Posts: 2,872
See this all the time in Liffey Valley too at the Roundabout near B&Q when you turn right to head out onto the Coldcut road. Two lanes leading up to it from the shopping centre, both clearly marked, left hand lane for straight ahead to Tesco and B&Q, right hand lane marked for right turn to head out onto Coldcut road yet 90% of people go round the roundabout in the left hand lane so if you obey the rules of the road and stay in the right hand lane on the roundabout you most likely will have some toolbox beside you in the left lane that you need to exit into when you leave the roundabout.
.G. is online now  
Thanks from:
07-01-2019, 18:31   #5
Seth Brundle
Error: 404 Personality Not Found
 
Seth Brundle's Avatar
 
Join Date: Apr 2003
Posts: 23,927
All to often in Ireland, the standard of driving on dual carriageway is quite poor. When it comes to roundabouts, this becomes even more apparent.
Seth Brundle is online now  
(3) thanks from:
Advertisement
07-01-2019, 19:43   #6
hmmm
Registered User
 
hmmm's Avatar
 
Join Date: Mar 2001
Posts: 7,114
It might be allowed, but it's stupid driving - particularly those who fly up the inside in the blind spot.
hmmm is offline  
07-01-2019, 20:13   #7
tom1ie
Registered User
 
Join Date: Nov 2007
Posts: 2,067
Quote:
Originally Posted by hmmm View Post
It might be allowed, but it's stupid driving - particularly those who fly up the inside in the blind spot.
It’s not allowed.
tom1ie is offline  
07-01-2019, 22:52   #8
Dravokivich
Moderator
 
Dravokivich's Avatar
 
Join Date: Oct 2004
Posts: 18,983
Quote:
Originally Posted by tom1ie View Post
If you are turning right on a roundabout use the right hand lane.
If you are turning left (which you can’t in this case) or going straight ahead, use the left hand lane.
However if I remember correctly on this roundabout, straight ahead is onto a dual lane slip road, therefore you could be in the right hand lane and proceed straight also.
Under no circumstances should you be in the left hand lane and taking the right hand exit!
No rules are set in stone. We should be trying to look at the signage on the lead up to a round about to determine appropriate lane usage.
Dravokivich is offline  
07-01-2019, 23:12   #9
liamog
Registered User
 
Join Date: Apr 2008
Posts: 2,137
Quote:
Originally Posted by Dravokivich View Post
No rules are set in stone. We should be trying to look at the signage on the lead up to a round about to determine appropriate lane usage.
I find it a particular shame that we rely on road markings which are often obscured by traffic instead of eye level signage.
liamog is offline  
Advertisement
07-01-2019, 23:26   #10
Dravokivich
Moderator
 
Dravokivich's Avatar
 
Join Date: Oct 2004
Posts: 18,983
Quote:
Originally Posted by liamog View Post
I find it a particular shame that we rely on road markings which are often obscured by traffic instead of eye level signage.
Yeah, that's a pain, especially in congested traffic and unfamiliar roads. But signage can easily be obscured by large vehicles too.
Dravokivich is offline  
08-01-2019, 00:18   #11
liamog
Registered User
 
Join Date: Apr 2008
Posts: 2,137
Quote:
Originally Posted by Dravokivich View Post
Yeah, that's a pain, especially in congested traffic and unfamiliar roads. But signage can easily be obscured by large vehicles too.
Something like these from the US. It wouldn't be so bad if we were consistent with lane markings but we mix them so often it's no wonder they become a free for all.

https://c8.alamy.com/comp/BDRY3D/rou...usa-BDRY3D.jpg
liamog is offline  
(2) thanks from:
08-01-2019, 01:00   #12
bigar
Registered User
 
Join Date: Apr 2007
Posts: 390
Quote:
Originally Posted by Seth Brundle View Post
All to often in Ireland, the standard of driving on dual carriageway is quite poor. When it comes to roundabouts, this becomes even more apparent.
That is better
bigar is offline  
(2) thanks from:
08-01-2019, 01:46   #13
Dillosk412
Banned
 
Dillosk412's Avatar
 
Join Date: Dec 2018
Posts: 42
It's not permitted and very clearly signed both on approach and on markings.

Both lanes can continue up the ramp to the m50, but only the right lane can go under the bridge towards Dundrum and Marlay.

Now and then, but very rarely will you see a motorcycle cop watching
Dillosk412 is offline  
Thanks from:
08-01-2019, 11:22   #14
Alun
Registered User
 
Join Date: Nov 2002
Posts: 18,466
Quote:
Originally Posted by liamog View Post
Something like these from the US. It wouldn't be so bad if we were consistent with lane markings but we mix them so often it's no wonder they become a free for all.
Exactly. It's not just for roundabouts either, but also for traffic light controlled junctions. Driving through an unfamiliar area when it's busy, and the road markings are obscured by traffic is a lottery. One junction it's left lane for left only and right lane for right and straight on, and at the next one it's left lane for left and straight on and right lane is for right only.
Alun is online now  
(3) thanks from:
08-01-2019, 13:02   #15
tom1ie
Registered User
 
Join Date: Nov 2007
Posts: 2,067
The overriding rule at roundabouts is
Left lane: left turn and straight on.
Right lane: right turn only UNLESS the road straight ahead is a dual lane road. In this case you can use the right lane to go straight on.

There is NO legal way to be in the left hand lane and exit the roundabout on the right hand side.
tom1ie is offline  
Post Reply

Quick Reply
Message:
Remove Text Formatting
Bold
Italic
Underline

Insert Image
Wrap [QUOTE] tags around selected text
 
Decrease Size
Increase Size
Please sign up or log in to join the discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search



Share Tweet