M50 upgrade - Phase II

M50 Traffic MGT

whosedaddy? wrote: »

In the "N3-M50 interchange" thread some alternative designs were posted last year (also shown in EIS), but subsequent claims where that the alternative design hasn't got planning permission.

alternative design

NRA has NOT got Planning Permission

When N3 inbound the other other day and the road dips sharply just after the M50 roundabout, which would indicate a bridge for the N3 inbound to M50S. which is not the design currently on the m50.ie website (and posted by celticbeast)

And the N2 one doesn't match some of the ongoing contruction either.

From the information we have been supplied, the design with the M3 crossing over the canal and railway line has been selected. This is why the N3 inbound dips between M50 and Auburn Ave. The outbound will be the same and work on excavation between existing carriageways will start shortly

triple-M

hi m50 traffic mgmt,im just wondering if you know when the m50 n3 interchange is scheduled to be completed?

Godge

ciaran75 wrote: »

Question for M50 Traffic MGT

After looking at the plans for the N3 interchange i do not see any way for cars coming from blanchardstown village to get to the M50 SB as the slip of main roundabout will be gone.

How are they proposing to move this traffic, as there is a LOT of people who use this route everyday. Will there be a more permanent sliproad like the current solution for M50 NB traffic at the blanchardtown roundabout.

Cheers,

Has this question been answered yet?

feb09

When is the section from tallaght to sandyford due to be completed ?

It seems to be almost ready, seems like just a little more work is needed, unfortunately almost no work has been done on that section for a long while ?

Why is this ?

M50 Traffic MGT

feb09 wrote: »

When is the section from tallaght to sandyford due to be completed ?

It seems to be almost ready, seems like just a little more work is needed, unfortunately almost no work has been done on that section for a long while ?

Why is this ?

Nightworks are ongoing every night. At the moment Roadstone are working between the Dundrum NB on ramp and the Marlay nursing home. Next week it will be from here to Firhouse. Due to the lack of space, dayworks are not possible as it requires lane closures for safety etc so night is the only option. 4 gantries will be erected tonight, 1 at Finglas SB, 1 at Tallaght SB, 1 at Edmondstown NB and 1 at Dundrum SB. As a result there will be rolling blocks by an Garda Siochana to slow traffic to 20kmh from the previous interchange to allow time to lift gantries without stopping traffic

M50 Traffic MGT

Godge wrote: »

Has this question been answered yet?

From the drawings we have been supplied, Blanchardstown traffic wishing to access M50 SB, can either use the on ramp onto the N3 (M3) from the Blanchardstown flyover, or either, use the existing inbound N3 to Auburn and do a u-turn, similar to Newlands Cross

M50 Traffic MGT

triple-M wrote: »

hi m50 traffic mgmt,im just wondering if you know when the m50 n3 interchange is scheduled to be completed?

The middle to end of 2010 for all works to be completed and all lanes to be operational

celticbest

celticbest wrote: »

Another quick question for M50 Traffic MGT :

Is there anyway that the crash barriers on the M50 North to M1 North Junction 3 can be pushed back slighty as the lane that is open at the moment is very narrow, this seems to be one of the two main causes of the slowdown at this junction as lorries sometimes nearly come to a standstill to make sure they sqeeze through.

The second reason seems to be people jumping into the auxilary lane at the last minute again causing traffic to slow down or brake at this junction. Can some cones be put in place temporarily until the junction upgrade is complete to stop this.

If people do not get into the lane early enough then they can carry on to the signalled controlled roundabout and enter the M1 North via there.

Hi M50 Traffic MGT is there any possibility that you can answer the above?

The Dark Knight

M50 Traffic MGT wrote: »

From the drawings we have been supplied, Blanchardstown traffic wishing to access M50 SB, can either use the on ramp onto the N3 (M3) from the Blanchardstown flyover, or either, use the existing inbound N3 to Auburn and do a u-turn, similar to Newlands Cross

This is a very poor solution. There is a huge catchment area around and to the west of Blanch Village.
This will only increase demand on an already over capacity Snugborough Road/N3 junction. If this was the plan from the beginning this Junction should also have been upgraded, and formed part of the M50/N3 Plans.

M50 Traffic MGT

celticbest wrote: »

Hi M50 Traffic MGT is there any possibility that you can answer the above?

The old lanes were 3.65m wide, therefore 7.3m altogether. We now have barrier on the LHS and RHS, which are at least 400mm wide each. To lay tar over the new eastbound freeflow bridge the tar has to be tied in with the old joint in the centre of the M1 NB freeflow. As a result the carriageway is much narrower as the tar has been cut behind the barrier in a longditudinal joint. If the barrier is too close to the edge, it cannot be pinned down properly and in an impact it is likely to fall over the edge. It is both a practicable working solution and safety concern as barrier is required on both sides and needs a solid base to be pinned down to.

ciaran75

M50 Traffic MGT wrote: »

From the drawings we have been supplied, Blanchardstown traffic wishing to access M50 SB, can either use the on ramp onto the N3 (M3) from the Blanchardstown flyover, or either, use the existing inbound N3 to Auburn and do a u-turn, similar to Newlands Cross

You gotta be kidding!!

Who designs a new junction which completely ignore thousands of people each day. To say use the Blanchardtown flyover is laughable, you wait over 3 minutes for lights to change as it is with the extra traffic this would be total madness during peak times.

Could a new slip road not be brought into plans at blanchardstown roundabout similar to the temporary one for M50 NB traffic?

feb09

feb09 wrote: »

When is the section from tallaght to sandyford due to be completed ?

.

M50 Traffic MGT

feb09 wrote: »

.

By Christmas there will be three lanes in both directions between Tallaght and Sandyford

Godge

M50 Traffic MGT wrote: »

From the drawings we have been supplied, Blanchardstown traffic wishing to access M50 SB, can either use the on ramp onto the N3 (M3) from the Blanchardstown flyover, or either, use the existing inbound N3 to Auburn and do a u-turn, similar to Newlands Cross

So to be clear, traffic coming down the Clonsilla Road or coming into Blanch via the Bell must use the Tracatamotors lights to access the M50 southbound (or take their chances with Auburn Ave) Sounds like a solution dreamed up by an engineer. Does nobody take into account where people want to go rather than where they want to send them?

ciaran75

N3 M50 north ramp reopened this morning on main roundabout.
they've also kept the new NB freeflow roads also that have been there last few weeks.

thought this was going to be under construction till december?

celticbest

ciaran75 wrote: »

N3 M50 north ramp reopened this morning on main roundabout.
they've also kept the new NB freeflow roads also that have been there last few weeks.

thought this was going to be under construction till december?

ciaran75

Never query when something opens early, only query when it late !!;)

M50 Traffic MGT

ciaran75 wrote: »

N3 M50 north ramp reopened this morning on main roundabout.
they've also kept the new NB freeflow roads also that have been there last few weeks.

thought this was going to be under construction till december?

When we provide a date of opening it is always worst case scenario but due to good weather we were able to open well ahead of schedule. To continue construction behind total fitness the free-flow, and access off Scott's will close some nights at 10pm and re-open at 6am. In the coming weeks we will be getting rid of the roundabout at Scotts and it will become a t-junction so hopefully this will also improve traffic flow. More details to follow on this scheme in the coming weeks

sgt.bilko

Hi i'm not sure if this has been posted previously or not.

I was of the opinion that the m50 was being widened so that there will be a 3 lane motorway with a 4th lane between on/off ramps.

This does not seem to be the case at Sandyford where the 3rd lane is the on/off lane.

Will this be a permanent road alignment?

L1011

sgt.bilko wrote: »

Hi i'm not sure if this has been posted previously or not.

I was of the opinion that the m50 was being widened so that there will be a 3 lane motorway with a 4th lane between on/off ramps.

This does not seem to be the case at Sandyford where the 3rd lane is the on/off lane.

Will this be a permanent road alignment?

4 lanes M1 to J12, 3 J12 to J14, 3rd lane leaves/joins as a drop at J14 Sandyford.

cargo

MYOB wrote: »

4 lanes M1 to J12, 3 J12 to J14, 3rd lane leaves/joins as a drop at J14 Sandyford.

As MYOB says, here's the high level info from the project websites homepage www.m50.ie

When completed the 31Km M50 Upgrade will provide:

* Three lanes in each direction from the Sandyford Junction to the M1 Junction
* Freeflow traffic at the M1, N3, N4 and N7 Junctions
* Partial free-flow at six other Junctions
* Additional fourth lanes linking successive Junctions
* Barrier-free tolling.


And specifically to the works you mention

http://m50.ie/index.php?page=phase-2

PHASE 2
Southern Section N81–Sandyford

* Construction of a fourth auxiliary lane in each direction between junction 11 (N81) and junction 12 (Scholarstown) and a third lane between junction 12 and junction 14 (Sandyford)

* Upgrading junction 11 (N81 Interchange) via the provision of a new freeflow slip road from Tallaght to the M50 Northbound and lengthening the existing footpaths and cycle lanes;

* Upgrading junction 12 (Scholarstown / Firhouse) to include building a new bridge, parallel to existing bridge to increase traffic capacity to two lanes in each direction and providing new cycle lanes and footpaths. To download map click here

* Minor improvements at junction 13 (Ballinteer) including installation of traffic signals at all grade crossings or junctions and environmental barriers;

* Upgrading junction 14 (Sandyford) including adding new free-flow left slip lanes from the Leopardstown Link Road to the M50 northbound, from the M50 northbound to Leopardstown Link Road and from the M50 southbound to Drumartin Link Road

Chris_533976

Dunno how they can call the N3 junction freeflow. It plainly is partial freeflow.

So is the N7. Turnpike has traffic lights.

spacetweek

Chris_533976 wrote: »

Dunno how they can call the N3 junction freeflow. It plainly is partial freeflow.

So is the N7. Turnpike has traffic lights.

At the N3, all movements from N3 outbound to M50 are freeflow. The inbound movements aren't being freeflowed probably because road upgrades or capacity enhancement inside the M50 are generally discouraged city-wide. The N7 Turnpike traffic lights were left in place because again the emphasis was on freeflowing the outbound, not inbound movements.

Same logic at M1/M50 junction, the N32 isn't required to be freeflowed even though it's part of the junction. Not a trunk route.

spacetweek

Hi M50 Traffic MGT.
Can I request that a major hump in a newly laid section of the M50 be resurfaced. The large hump is around 1.5 m in diameter and located on the southbound carriageway on lane 3 (fast lane) around halfway between junctions 12 and 13 (Firhouse and Ballinteer). It is located on the right hand side of the lane straddling the white line. At 100 km/h this hump is big enough to be a danger to traffic.

Chris_533976

spacetweek wrote: »

At the N3, all movements from N3 outbound to M50 are freeflow. The inbound movements aren't being freeflowed probably because road upgrades or capacity enhancement inside the M50 are generally discouraged city-wide. The N7 Turnpike traffic lights were left in place because again the emphasis was on freeflowing the outbound, not inbound movements.

Same logic at M1/M50 junction, the N32 isn't required to be freeflowed even though it's part of the junction. Not a trunk route.

To me its not a freeflow junction unless all movements are freeflow

Partial freeflow to me means that some movements are not freeflow.

armada104

spacetweek wrote: »

At the N3, all movements from N3 outbound to M50 are freeflow.

As far as I can see it's actually the other way round. All movements from the N3 inbound are freeflow. Staying on the N3 outbound will involve using the roundabout as well as going N3 outbound to M50(N)

Carawaystick

spacetweek wrote: »

Same logic at M1/M50 junction, the N32 isn't required to be freeflowed even though it's part of the junction. Not a trunk route.

As 32 is less than 50, then it is by definition a primary route....


Flew into runway 28 in DUBlin today, had a good look at the M1/M50/M32 junction.

Coming south n the M1, the slip angles off, then turns left under the bridge about 10- 20 degrees, then turns right across the M32.

I was surprised, I thought it'd be more a curve than a series of straight lines.

triple-M

just noticed then new upgrade info leaflet for sept 2009 has been posted on m50.ie for anyone who may not know,some interesting pics,(may have been previously posted )
http://m50.ie/index.php?page=phase-2-sept-09

Davy

triple-M wrote: »

just noticed then new upgrade info leaflet for sept 2009 has been posted on m50.ie for anyone who may not know,some interesting pics,(may have been previously posted )
http://m50.ie/index.php?page=phase-2-sept-09

Good news for m1 users

Phase 1 is scheduled for
completion at the end of December 2009 and involves the completion of the new M1
interchange, partial completion of the N2 interchange upgrade and the upgrade of the main
carriageway between the M1 and N2 interchanges which is progressing well.

triple-M

Davy wrote: »

Good news for m1 users

not N3 users tho, october 2010 for the n3 interchange completion!

G_R

god that M1/M50/M32 interchange is horrible,