Help Keep Boards Alive. Support us by going ad free today. See here: https://subscriptions.boards.ie/.
If we do not hit our goal we will be forced to close the site.

Current status: https://keepboardsalive.com/

Annual subs are best for most impact. If you are still undecided on going Ad Free - you can also donate using the Paypal Donate option. All contribution helps. Thank you.

https://www.boards.ie/group/1878-subscribers-forum

Private Group for paid up members of Boards.ie. Join the club.

Onramp lights on N4 Chapelizod Bypass

pad199207 · 2016-11-20 19:46:30

There have been works on the chapelizod bypass underway the past month. There are new traffic lights on the onramp from the Kylemore Rd. I wonder what they will be for? Is it to control traffic entering the bypass?

20-11-2016 08:46PM

#1

pad199207

Registered Users, Registered Users 2 Posts: 7,419 ✭✭✭

Join Date: January 2010

Posts: 7391

There have been works on the chapelizod bypass underway the past month. There are new traffic lights on the onramp from the Kylemore Rd. I wonder what they will be for? Is it to control traffic entering the bypass?

0

Comments

#2 20-11-2016 08:49PM

L1011

Registered Users, Registered Users 2 Posts: 74,044 ✭✭✭✭

Join Date: July 2002

Posts: 70488

Ramp metering, I'd imagine. Its already (rarely) used at the port tunnel / M1 / Coolock Lane interchange. Basically by allowing traffic through in smaller amounts (as low as one car at a time) it can merge with the mainline without the mainline coming to a halt as currently happens.

Its used extremely frequently elsewhere, particularly in the US.

0
#3 08-03-2017 10:53PM

Oink

Moderators, Music Moderators Posts: 2,163 Mod ✭✭✭✭

Join Date: June 2005

Posts: 1994

Does anybody know when those [...] traffic lights will be activated? looks like the new bus lane has been ready to go for 3 months now. It boggles the mind to put it politely.
Any info appreciated. Cheers.

0