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M7 - Naas/Newbridge Bypass Upgrade [Junction 9a now open]

JupiterKid

Following on from the suggestion of a poster, this thread has been set up to discuss the need for widening the M7.

The section of the M7 IMO in immediate need (really a backlog need) for widening is the section from the Maudlins Interchange at Naas to the M9 interchange - basically the original 1983 Naas Bypass and half of the 1993 Newbridge Bypass. Is this likely to proceed in the near future?

Would the central median be wide enough for widening to D3M here? I'm pretty sure it is wide enough on the Newbridge bypass section but I'm not so sure in the case of the Naas Bypass.

Also, what bridges will need to be demolished and rebuilt? Or would it be more practical to drop the hard shoulder through the existing bridges?

What about the proposal a few years back to build a new junction at on the Naas Bypass at Osberstown? Will it still go ahead?

In the longer term, does anyone see a need to widen the M7 to the N7/M8 junction?

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Hotblack Desiato

jmkennedyie wrote: »

Anyone seen this technique elsewhere? Fine if people in the left lane take their next exit, but not so pretty if they want exit+1. I hope approach signage is clear.

It's a turbo roundabout.

This one has 3 arms, so (ignoring u-turns, if allowed) there are only two possible movements from each entrance, and two lanes at each entrance, so there should be no conflict.

Sam Russell

Mod: Can ye stop the snarking. Speculating on posters identity is against he charter, but so is snarking.

Give it a rest.

regedit

_Kaiser_ wrote: »

Every criticism of this project (and not just by me) has been met with replies like the above by yourself, as though it's some sort of personal slight.

So come on.. in what way are you connected with this project then?

The question has been asked before and he (Darc19) has never responded. So, clearly he has vested interests!
He aggressively seeks credentials from anyone who questions the delay while never offering a glimpse of his qualifications

BuzzFish

jmkennedyie wrote: »

The new Clane roundabout has the lanes lined differently to the other roundabouts on the scheme. Rather than two purely circular lanes circling the roundabout, the left lane is lined out the next exit, and the right lane then crosses left to exit at the following exit.

Anyone seen this technique elsewhere? Fine if people in the left lane take their next exit, but not so pretty if they want exit+1. I hope approach signage is clear.

Same on the Kerry Group roundabout

BelfastVanMan

JohnC. wrote: »

The Grannagh Junction Roundabout approaching Waterford does this. Of course, half the people using it have no lane discipline, so people are just meandering over and back across lines as if they weren't there.

I'd post a satellite image, but both Google and Bing aerial images of this junction are quite bad.

The Comber Road roundabout on the A20 Newtownards ring road was recently modified to a similar setup.

It has actually improved the flow of traffic considerably.

JohnC.

jmkennedyie wrote: »

The new Clane roundabout has the lanes lined differently to the other roundabouts on the scheme. Rather than two purely circular lanes circling the roundabout, the left lane is lined out the next exit, and the right lane then crosses left to exit at the following exit.

Anyone seen this technique elsewhere? Fine if people in the left lane take their next exit, but not so pretty if they want exit+1. I hope approach signage is clear.

The Grannagh Junction Roundabout approaching Waterford does this. Of course, half the people using it have no lane discipline, so people are just meandering over and back across lines as if they weren't there.

I'd post a satellite image, but both Google and Bing aerial images of this junction are quite bad.

[Deleted User]

Darc19 wrote: »

<Snip>

It's a really dumb roundabout, you don't need to be an expert to see how.

Why is it two lanes? It makes no sense and just causes several areas where traffic is potentially crossing each other when attempting to exit.

_Kaiser_

Darc19 wrote: »

Frankly they should have just employed you to design and build it as you are a phenomenal expert and seem to know everything about road construction judging by your posts

Every criticism of this project (and not just by me) has been met with replies like the above by yourself, as though it's some sort of personal slight.

So come on.. in what way are you connected with this project then?

Darc19

_Kaiser_ wrote: »

What's more annoying is the same roundabout has 3 different versions...

- The one called out above
- two approach lanes marked
- Single approach lane

Make up yer mind FFS!

<snip> Mod: No snarky comments.

_Kaiser_

Pete_Cavan wrote: »

From the width of the road at that point, it looks to me like they put in an extra triangle incorrectly rather than forgot the dividing line.

Also looks to me that the 2 lanes in the bottom of the picture are different sizes, but maybe that's just the angle

[Deleted User]

jmkennedyie wrote: »

The new Clane roundabout has the lanes lined differently to the other roundabouts on the scheme. Rather than two purely circular lanes circling the roundabout, the left lane is lined out the next exit, and the right lane then crosses left to exit at the following exit.

Anyone seen this technique elsewhere? Fine if people in the left lane take their next exit, but not so pretty if they want exit+1. I hope approach signage is clear.

That is a very common method in the UK and most EU countries, helps to enforce lane discipline.

jmkennedyie

The new Clane roundabout has the lanes lined differently to the other roundabouts on the scheme. Rather than two purely circular lanes circling the roundabout, the left lane is lined out the next exit, and the right lane then crosses left to exit at the following exit.

Anyone seen this technique elsewhere? Fine if people in the left lane take their next exit, but not so pretty if they want exit+1. I hope approach signage is clear.

Pete_Cavan

From the width of the road at that point, it looks to me like they put in an extra triangle incorrectly rather than forgot the dividing line.

_Kaiser_

What's more annoying is the same roundabout has 3 different versions...

- The one called out above
- two approach lanes marked
- Single approach lane

Make up yer mind FFS!

Darc19

BuzzFish wrote: »

This looks odd (very minor I know)

Shouldn't it be either one lane, or two with a line between?

I've seen that on some roundabouts. The urlingford junction on m8 definitely has the identical markings without a dividing line.

Golden Horde

Annoying to see that the tie in on the link road into Sallins stops just before the entrance to Millbank. The road surface from there to traffic lights is terrible, especially as the trucks used it for access for the build.

It looks like it never got a proper top layer since it was built, as the metal drains sit about an inch above the road. Leaving it for the council no doubt.

Rest looks great.

pad199207

BuzzFish wrote: »

This looks odd (very minor I know)

Shouldn't it be either one lane, or two with a line between?

That would take about a year to fix that

champchamp

BuzzFish wrote: »

This looks odd (very minor I know)

Shouldn't it be either one lane, or two with a line between?

Shush, if they see this and decide to change these markings it'll be delayed for another 6 months.

BuzzFish

pad199207 wrote: »

Looks fantastic!

This looks odd (very minor I know)

Shouldn't it be either one lane, or two with a line between?

pad199207

MYSTICA1 wrote: »

https://www.youtube.com/watch?v=XcrLff1u41I
Looks ready any day now!
Siac Colas site also updated but simply says “opening soon”

Looks fantastic!

MYSTICA1

https://www.youtube.com/watch?v=XcrLff1u41I
Looks ready any day now!
Siac Colas site also updated but simply says “opening soon”

spacetweek

BuzzFish wrote: »

He'll have to be right at some stage but he's not a bit reliable.

As often as a stopped clock?

Golden Horde

The street lighting on the link road into Sallins has been switched on, from the junction at Lidl up to the roundabout on the bypass.

Road surface has only been done as far as entrance Millbank and hasn't been marked out with lines yet....will they resurface the remaining stretch at all.

Seems strange to build paths and lighting on the full link road and then not do the full road surface.

BuzzFish

Golden Horde wrote: »

Per Bill Clear , local councillor facebook page

"Sallins Bypass
At the moment they are doing a safety audit. Once completed they will have some issues to resolve like signs and small repairs.
This will take about a week from now. I expect it then to open late next week.
A long time coming."

So, maybe before Easter after all.

Said several times already on this thread, pretty much all of Bill Clears updates have been inaccurate to date. He'll have to be right at some stage but he's not a bit reliable.

Golden Horde

Per Bill Clear , local councillor facebook page

"Sallins Bypass
At the moment they are doing a safety audit. Once completed they will have some issues to resolve like signs and small repairs.
This will take about a week from now. I expect it then to open late next week.
A long time coming."

So, maybe before Easter after all.

BuzzFish

WishUWereHere wrote: »

Just driven up on the M7NB. It appears the incomplete signage on the Mway has been completed. J9a must be opening soon.

Saw this too today, all signage in place on the M7 and also the signage at Kerry Group roundabout has been cleaned (was blocked out). They were installing the lights at the pedestrian crossing this morning. All overhead lighting now mounted on the junction too. Very little left to do.

WishUWereHere

Just driven up on the M7NB. It appears the incomplete signage on the Mway has been completed. J9a must be opening soon.

MYSTICA1

millb wrote: »

I wonder what the speed limits will be set at on the bypass? it could be 80 on the dual-carriageway with no adjacent path and possibly reduced to 60 on the single cariageway section. down to 50 nr Millbrook / Lidl?

I was thinking it might be 100km/h on DC, 80km/h on SC and 60km/h on link road.. but you are probably correct. However, 80km/h after coming off 120km/h motorway and onto the DC will feel quite slow. Safety first though!

millb

toe_knee wrote: »

Just got an email from James Lawless office, audit on Wednesday with an update to follow.

"Below is the latest information we have on this road.

A Road Safety Audit is scheduled for the Sallins Bypass for the 24th March. The outcome of that audit will determine when the road will open. Once we have firm date will let the Members know. We are working on a resolution for the tie in area at Millbrook and Lidl- the pavement and footpaths here are substandard and will deteriorate further when the traffic volume increases. We will provide a full update to Members once we have agreed an approach to getting this work done."

I wonder what the speed limits will be set at on the bypass? it could be 80 on the dual-carriageway with no adjacent path and possibly reduced to 60 on the single cariageway section. down to 50 nr Millbrook / Lidl?

millb

MYSTICA1 wrote: »

Thanks for the pics millb. Can anyone explain the impact, if any, of what the pics show? I assume it is the expansion joint for the bridge, but is this a major rework or simply a planned task that may only take a few days?

Looks like its nearly sorted, just the final expansion joint on 3 of them and some extra dressing as per the photos on the final opening.

Will be done in a day or 2 by 2 or 3 lads if they have the material.