Lidl roundabout on Naas to Newbridge road

bureau2009

:mad: Can anyone explain to me what exactly is the issue on the above roundabout just after Sheehy Motors?

I thought with the M7 upgrade this roundabout nightmare would be sorted but it's worse than ever. I'm usually stuck on a bus, tearing my hair out and in the dark I can't quite see what's happening/not happening.

And will we have to live with this roundabout forever? How is KCC addressing this issue?

:mad: :mad: :mad:

wobbles-grogan

I hate the concept of traffic lights on roundabouts but this roundabout needs a light, as all traffic from the ring road or the m7 has preference over that coming out of town, and so it backs up badly.

That's from what I see the only issue, there's never a backlog once you go past it.

eusap

there is three issues on that roundabout, if you exit from Dublin at exit 10 you have to go to the B&Q roundabout to do a U turn for Newbridge. Should be fixed when exit 10 roundabout is completed.

They also should have left the on ramp to the M7 towards dublin on the rathangan road. There was room to have it but for some reason they removed it.

Also junction 9a will reduce the traffic when opened

silver2020

Two major changes coming soon that will alleviate all the issues.

1 - new roundabouts on the Newbridge road will be fully open taking away all the southbound M7/M9 coming from newbridge and Newbridge bound traffic coming from M7 off the bundle of sticks roundabout.

2 - New Jct 9a to open taking most of millenium park traffic.

silver2020

eusap wrote: »

there is three issues on that roundabout, if you exit from Dublin at exit 10 you h
They also should have left the on ramp to the M7 towards dublin on the rathangan road. There was room to have it but for some reason they removed it.

two on ramps within 300m metres? - you'd have accidents day in and day out causing utter chaos.

eusap

the distance between the new/old on ramp is 600 meters, the distance between johnstown and naas on ramps is 1050 meters.

There are many examples of it around the country, the athlone town bypass has on ramps very close together

also is it any difference to the M9/M7 merge which has two staggered on ramps

WishUWereHere

eusap wrote: »

the distance between the new/old on ramp is 600 meters, the distance between johnstown and naas on ramps is 1050 meters.

There are many examples of it around the country, the athlone town bypass has on ramps very close together

also is it any difference to the M9/M7 merge which has two staggered on ramps

Also J10 & J9 on the M50. I don’t know how far apart they are, but they sure are close. And the entrance to the M50 NB coming from the Red Cow is almost on top of the entrance from the N7 is probably even closer.

silver2020

eusap wrote: »

the distance between the new/old on ramp is 600 meters, the distance between johnstown and naas on ramps is 1050 meters.

There are many examples of it around the country, the athlone town bypass has on ramps very close together

also is it any difference to the M9/M7 merge which has two staggered on ramps

Naas-Johnstown & Johnstown-Naas have auxiliary lanes

Are you sure its 600m from the last point of joining the M7 on the current on ramp to the first possible joining point from the old one? I suspect its between 300m & 350m.

But in any case, having an on-ramp for a very small amount of traffic would make no sense. Once the roundabouts are fully complete and Jct 9a open, there will be ample space for all vehicles and the current ridiculous traffic jams will dissipate.

Jct 9a will be make the big difference and I simply can't see why its not open

Tomrota

Replace the roundabout with traffic lights and put in bus lanes and cycle paths. Bundle of sticks roundabout (is that what it’s called?) is a bit silly because it divides the main road with two completely nonessential roads. Replace that roundabout with a slip on road at each side onto the main dual carriageway. Simple.

NedNew2

Tomrota wrote: »

Replace the roundabout with traffic lights and put in bus lanes and cycle paths. Bundle of sticks roundabout (is that what it’s called?) is a bit silly because it divides the main road with two completely nonessential roads. Replace that roundabout with a slip on road at each side onto the main dual carriageway. Simple.

No bloody way. Satan himself invented traffic lights and KCC have a particular addiction to them, believing then to solve all and every problem. This kind of thinking is 10-15 years behind modern traffic design and management. Try telling KCC that though. (Refer https://books.google.ie/books?id=kQ7uBQAAQBAJ&pg=PA31&lpg=PA31&dq=Verkehr+design+Kontrolle&source=bl&ots=qA06N9kNoP&sig=ACfU3U0daSnEFaSFwgHBwZpUDutzu_XINQ&hl=en&sa=X&ved=2ahUKEwje-I_G0LnmAhURolwKHaS_C6YQ6AEwCnoECAcQAQ#v=onepage&q=Verkehr%20design%20Kontrolle&f=false)

GavMan

silver2020 wrote: »

Naas-Johnstown & Johnstown-Naas have auxiliary lanes

Are you sure its 600m from the last point of joining the M7 on the current on ramp to the first possible joining point from the old one? I suspect its between 300m & 350m.

But in any case, having an on-ramp for a very small amount of traffic would make no sense. Once the roundabouts are fully complete and Jct 9a open, there will be ample space for all vehicles and the current ridiculous traffic jams will dissipate.

Jct 9a will be make the big difference and I simply can't see why its not open

I had a quick look this morning and it is absolutely not 600 metres from the last point of entry on the new slip to the old slip 3-400 metres on the odo in the outside lane. Would be carnage to have kept both open especially the predilection of many road user to attempt to merge at speed drastically below motorway pace and at the very first point of possible merging.

eusap

Naas 10 to Rathangan road = 568m

Red Cow example = 493m

M7 to M9 merge = 543m

silver2020

eusap wrote: »

Naas 10 to Rathangan road = 568m

Red Cow example = 493m

M7 to M9 merge = 543m

redcow is a 60km zone.

M7/M9 merge is the same junction and lane one continues and does not actually merge.

On Jct 10, you are measuring 1st possible point of entry of new entry to 1st possible point of old entry. The correct measurement would be last point of entry to 1st point of entry and that's less than 300m.

But aside from that, the amount of traffic coming from Rathangan and going north on M7 is miniscule, so a huge cost and safety issues for a miniscule number of motorists is crazy

eusap

the M50 is 100km zone ?

As its not clear on satelite image where new entry finishes, i just measureed again the start of the old slip road to the 1st entry point of the old on ramp and its 460m

you can measure it here https://www.maps.ie/distance-area-calculator.html

The Rathangan road is heavily used and traffic is often backed up to victoria bridge in the morning, remember this road services Newbridge (people not waiting to go through the town) Drehid landfill and the numerous quarries. M7 Business park, Caragh, Prosperous, allenwood etc...

silver2020

eusap wrote: »

the M50 is 100km zone ?

As its not clear on satelite image where new entry finishes, i just measureed again the start of the old slip road to the 1st entry point of the old on ramp and its 460m

you can measure it here https://www.maps.ie/distance-area-calculator.html

The Rathangan road is heavily used and traffic is often backed up to victoria bridge in the morning, remember this road services Newbridge (people not waiting to go through the town) Drehid landfill and the numerous quarries. M7 Business park, Caragh, Prosperous, allenwood etc...

I thought you were looking at M50 - Clondalkin turnoff.
But M50 - Ballymount has an auxiliary lane. It's also the scene of plenty of accidents including one this morning.

Rathangan road is no longer backed up in the morning (since new junction) and most of the traffic is going towards Newbridge or Naas or the M7 business park. Very little in the overall scheme of things goes northbound on the M7.

Caragh traffic (and prosperous and allenwood) will find it easier/quicker to use the new Junction 9a - even if the old jct 10 ramp was there.

So to create a second junction for a miniscule amount of traffic from Rathangan just makes no sense.

Wait until Junction 9a and Junction 10 are fully open and see the difference it makes.

WishUWereHere

eusap wrote: »

the M50 is 100km zone ?

As its not clear on satelite image where new entry finishes, i just measureed again the start of the old slip road to the 1st entry point of the old on ramp and its 460m

you can measure it here https://www.maps.ie/distance-area-calculator.html

The Rathangan road is heavily used and traffic is often backed up to victoria bridge in the morning, remember this road services Newbridge (people not waiting to go through the town) Drehid landfill and the numerous quarries. M7 Business park, Caragh, Prosperous, allenwood etc...

You are so right OP about the Rathangan Road in the mornings. I use it every day, & us folk from Newbridge use the back road a lot, to (as you say) avoid the town Centre.