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Snugborough Interchange Upgrade

daymobrew

FCC is proposing a significant upgrade of the big Snugborough Road junction.

Upgrading of existing five-arm signalised junction at Snugborough Rd./N3 off-ramp/L3020/Main St. including widening of all road approaches, provision of new high quality pedestrian/cyclist facilities and new public transport priority measures.

Removal of right hand turning movement from Waterville onto the Snugborough Road.

Removal of existing roundabout at Snugborough Rd/N3 on-ramp/Waterville and construction of 2 new signalised junctions in its place.

Construction of new bridge structures over the N3 and over the Tolka Valley and river.

Construction of infrastructure to facilitate diversion of the existing 1200mm diameter 9C foul sewer.

Existing ramped access to Tolka Valley Park to be replaced with access at similar grade.

IrishCycle.com wrote about it and how it is not following design guidelines.

Submissions can be made online until 23 February.

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spacetweek

Has anything started yet?

Pat Dunne

spacetweek wrote: »

Has anything started yet?

It depends what you mean by “anything”.
Work in regard of clearing the site in preparation is ongoing for the last three weeks.

Caranica

Sliproad down into N3 inbound at Waterville roundabout is narrowed, only one lane available. They took down a load of trees on the Waterville side of the road towards the hospital.

raheny red

spacetweek wrote: »

Has anything started yet?

The signage still says May with no specific date. One of the footpaths over the bridge was closed off yesterday. Pain in the hole with the buggy.

Caranica

raheny red wrote: »

The signage still says May with no specific date. One of the footpaths over the bridge was closed off yesterday. Pain in the hole with the buggy.

It's been closed intermittently over recent weeks. I've seen it both closed and open.

daymobrew

raheny red wrote: »

The signage still says May with no specific date. One of the footpaths over the bridge was closed off yesterday. Pain in the hole with the buggy.

If there is a phone number to contact do so. Contact a councillor too.

daymobrew

The project has a website: https://www.snugboroughinterchange.ie/.

And the diversion for pedestrians is shown there.

Phil.x

daymobrew wrote: »

The project has a website: https://www.snugboroughinterchange.ie/.

And the diversion for pedestrians is shown there.

Never really knew much about that pedestrian tunnel even after all the years I'm living in d15.
Is/was it safe?

Caranica

Phil.x wrote: »

Never really knew much about that pedestrian tunnel even after all the years I'm living in d15.
Is/was it safe?

I never saw any trouble or felt unsafe using it. Wouldn't have gone near it when dark but it was always in use, don't think I ever went from the village to Corduff end without meeting people.

raheny red

Cycle through it after 10pm 4 times a week for over 2 years, barely ever see anyone. Maybe the proximity to the cop shop helps?

Walking over the Snugborough Bridge today, seems like the N3 bus lane is closed off for a "slip road" into the road works site.

The Dark Knight

Have to say, the plans for this Junction really annoys me.
All this work and tax payers money spent, without a freeflow movement in sight.
May be some improvements in traffic flow due to more space to que cars, however we're definitely not going to get value for money in this upgrade.

spacetweek

The Dark Knight wrote: »

Have to say, the plans for this Junction really annoys me.
All this work and tax payers money spent, without a freeflow movement in sight.
May be some improvements in traffic flow due to more space to que cars, however we're definitely not going to get value for money in this upgrade.

What??
It's a junction right in the middle of residential areas. It needs to cater for traffic increase (with the extra lanes) but also walking and cycling. Freeflows impede pedestrians and cyclists.

mr potato head

spacetweek wrote: »

What??
It's a junction right in the middle of residential areas. It needs to cater for traffic increase (with the extra lanes) but also walking and cycling. Freeflows impede pedestrians and cyclists.

Yeah and I think the proposed "upgrade" for the N3 to three lanes will also do nothing to improve the situation, it will only reduce air quality in the area and have a negative long term impact on Blanchardstown village

The Dark Knight

spacetweek wrote: »

What??
It's a junction right in the middle of residential areas. It needs to cater for traffic increase (with the extra lanes) but also walking and cycling. Freeflows impede pedestrians and cyclists.

Not necessarily. You can have partial freeflow, with pedestrian crossings. Just look at the flow from the Blanchardstown road south onto the N3 inbound.

Larbre34

mr potato head wrote: »

Yeah and I think the proposed "upgrade" for the N3 to three lanes will also do nothing to improve the situation, it will only reduce air quality in the area and have a negative long term impact on Blanchardstown village

As we head towards the demise of new combustion engined vehicles at the end of the decade, and probably sooner the way manufacturers are going, air quality affected by road traffic will become less and less an issue.

daymobrew

The Dark Knight wrote: »

Not necessarily. You can have partial freeflow, with pedestrian crossings. Just look at the flow from the Blanchardstown road south onto the N3 inbound.

Such things can be horrible for pedestrians - look at https://goo.gl/maps/oYeXVery4f8eojAF9 - 4 pedestrian crossing lights to go from left to right! That probably takes ages.

The Dark Knight

daymobrew wrote: »

Such things can be horrible for pedestrians - look at https://goo.gl/maps/oYeXVery4f8eojAF9 - 4 pedestrian crossing lights to go from left to right! That probably takes ages.

And wasting millions of euros in upgrading a junction that will probably need to be upgraded again in 20 years time is horrible for tax payers.

daymobrew

Larbre34 wrote: »

As we head towards the demise of new combustion engined vehicles at the end of the decade, and probably sooner the way manufacturers are going, air quality affected by road traffic will become less and less an issue.

While electric cars eliminate exhaust pipe emissions (or rather move emissions to the generating plant), tyre and brake pad emissions remain and are apparently really bad: https://www.rte.ie/lifestyle/motors/2020/0918/1166000-tyre-pollution-up-to-1-000-times-worse-than-engines-study-finds/

L1011

That study, or probably just the reporting of it, falls over immediately on astoundingly basic maths problems.

The headline of 5.8g a kilometre of tyre particulate would indicate that a set of tyres that does 20,000k will have lost 116 kilos of material over that time, 29kg a tyre

My cars tyres weigh about 9kg each. One tyre cannot possibly emit 29kg of tyre particulate in its lifetime - it has probably lost in the range of a few hundred grams of weight by the time it reaches end of life, considering much of the weight is the steel internal structure.

If they mean 5.8g including all forms of particulate - brakes (only a few hundred grams of brake pad to wear down over tens of thousands of km), road surface wear etc - I'd still think its massively overstated.

spacetweek

They probably meant milligrams. Wouldn't be unusual for journos to be maths illiterate.

Caranica

Going back to the actual subject of the thread, it's now June and there's no sign of the actual works beginning, electronic signs say May? They really haven't told those of us living on/just off the road what to expect in terms of disruption.

Larbre34

The works have begun.

Phil.x

It's a dreadful junction and hopefully these works will make a great improvement.

daymobrew

L1011 wrote: »

That study, or probably just the reporting of it, falls over immediately on astoundingly basic maths problems.

You're right. I didn't think about tyre lifetime and the incorrect claims.

Pollution aside, electric cars do not reduce congestion so there will still be long delays at the junction and, as it will be a long time before all cars are electric, there will still be a lot of pollution in the area.

spacetweek

There's no way to treat a busy junction like this in such a way that everyone's happy.
If you expand it to allow for more traffic, it flows better which at least reduces backed-up traffic, which is better for people who live locally.
But this almost always makes harder to get through for non-motorists.

In some locations, the above logic wins out, in others, expanding the road brings too many downsides so the area remains congested.

daymobrew

spacetweek wrote: »

There's no way to treat a busy junction like this in such a way that everyone's happy.
If you expand it to allow for more traffic, it flows better which at least reduces backed-up traffic, which is better for people who live locally.

One thing known around the world is: "If you build extra road capacity, extra traffic will arrive to fill it."

Caranica

What I'm most annoyed with is that there was only one public consultation. They changed the plans after that but never circulated them to residents and didn't send any communication re works starting and impact on us. Still no closer to understanding the direct impact of two bridges

raheny red

The last man standing really is gonna be swallowed up! The new structure will be right on top of them. The roundabout has been removed and replaced by plastic barriers.

raheny red

https://twitter.com/Fingalcoco/status/1481189228272881667?t=E_zsaRkcAFLFHAAkbRYeGg&s=19

Phil.x

https://www.boards.ie/discussion/comment/117794404#Comment_117794404

Was there an offer to purchase the house?