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
23-02-2012, 17:34   #16
MYOB
Registered User
 
MYOB's Avatar
 
Join Date: Jul 2002
Location: Maynooth
Posts: 21,963
Quote:
Originally Posted by antoobrien View Post
i think there was also something about the distance between the junctions not being enough to justify 120km/h as well.
This is just the southern cross section in question - the distances between the junctions there are huge!
MYOB is online now  
Advertisement
25-02-2012, 09:47   #17
icdg
Moderator
 
Join Date: May 2001
Location: Dublin
Posts: 4,810
Quote:
Originally Posted by MYOB View Post
This is just the southern cross section in question - the distances between the junctions there are huge!
The speed limit on the Southern Cross was 60mph on the day it opened, so it must have been a planning permission thing.

OP the 120 km/h limit for motorways is just a default, not a requirement. Road authorities are free to set special speed limits on motorways just as on any other road.
icdg is online now  
25-02-2012, 11:12   #18
MYOB
Registered User
 
MYOB's Avatar
 
Join Date: Jul 2002
Location: Maynooth
Posts: 21,963
Quote:
Originally Posted by icdg View Post
The speed limit on the Southern Cross was 60mph on the day it opened, so it must have been a planning permission thing.
It was - noise concerns as I mentioned.
MYOB is online now  
27-02-2012, 21:24   #19
abitofacomedian
Registered User
 
abitofacomedian's Avatar
 
Join Date: Mar 2002
Location: Raheny, Dublin 5
Posts: 528
If you travel the whole length of the M50 you'd take 4mins longer travelling at 100km/h than at 120km/h. Hardly a big issue, but time savings of 4mins have been used to justify spending millions on other schemes.

I worked on the M50, and at the time one of the reasons given for the lower speed limit was higher capacity. Traffic can travel closer together at 100 than at 120, so more vehicles can physically fit on the road. In addition to the narrower lanes, noise and junction spacings I don't think that 100km/h is a bad compromise.
abitofacomedian is offline  
27-02-2012, 21:29   #20
quietriot
Closed Account
 
Join Date: Jan 2012
Posts: 340
It might be 100kph but I can't remember ever having done 100kph on it.
quietriot 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