Dublin Airport New Runway/Infrastructure.

It’s apparently to ensure safe crossing the north South runway.

Apparently it’s a Rule that crossing runways that could be active is best done at a 90 degree angle .

Visibility and safety…. If you will

i think that’s the reason

The latest Google Earth imagery gives a very good overview also. It looks to me as though the new taxiway M will be the only one at Dublin that crosses 16-34 at a 90-degree angle, by the way. I see also that the old "Iona strip" has been removed and that the SAR helicopters now reach the runway via a connecting taxiway W4 to the Venair ramp and to 16-34 from there.

I can see the point about not compromising operations or the ILS on Runway 16, but 16/34 would be inactive about 95% of the time in which the dog-leg taxiway would be a bit of a pain 95% of the time. The "missing" bit of the parallel taxiway could surely be closed if 16/34 were active.

Makes far more sense to cross at 90 degree's, even if as stated, the taxi way wouldn't be used when 16/34 is in operation. As has happened in the past, incidents can often when that 'once in a million' situation occurs and sure as night follows day, people will start asking why wasn't it do this way from the start.

What residential areas along the coast are going to have noise increases due this new runway?

If you were to draw the extended runway centreline out from each end there's not a lot in terms of built up areas on the west end but if the departures that are designed for 10L don't include some sort of early turn then Portmarnock will be right in the firing line.

I'd imagine the SIDs that are published in the end for 10L will attempt to avoid the built up areas but I'd be fairly sure any right turn after departure (to go south of Portmarnock) can be ruled out because it would conflict with SIDs/missed approaches from 10R. So the only option aside from straight ahead would be a left turn over Malahide/Seabury/Swords which isn't ideal either. Will be very interesting to see what the arrivals and departures will be like next year.

I did hear that 28L will likely mostly continue to be the landing runway when winds are westerly as so there would be minimal added noise disruption from departures on 28R since there are no built up areas on the extended centreline.

When the easterly runways are in use I did hear that the existing 10R will be prioritised for departures, probably to minimise any new noise effect on Portmarmock/Malahide as mentioned above. Maybe aircraft will have to specially request 10L for departure if they are heavy etc.

As someone who lives under the runway 16 departure path (two miles away, and I know it is not frequently used) I find it interesting to see how much fuss a middle-class area, almost four miles from the departure end of 10L, has managed to generate about the use of the new runway. There are consultation documents from 2016 on the DAA website that show the types of SID being considered from 10L, which appear to factor in a 15-degree left turn as a common first manoeuvre shortly after take-off. No doubt more detailed work has been done since.

Apologies yes typo on my part, above post edited, I mean no new noise if they continue to use 10R for departures.

What's also laughable is that the original plan for this runway, exactly the same as what has been built except 3500m, is well over 50 years old.

If you zoom right in on the resurfaced areas of 16/34, you can see that they have installed what appear to be centreline light fittings for right-angle turn offs to future taxiways opposite Links 2, 3 and 6. Given that, a bit surprising that reconstruction of the existing W1,2,3 taxiway intersections have not been reorientated to 90 degrees.

Comparing LHR to DUB is a bit like chalk and cheese. LHR controllers are approved for simultaneous approaches and departures. Granted they aren't used all that often but it can dig them out of a hole when required. As far as I am aware the IAA has no plans to train up its staff to this level.

Be interesting to see if the IAA will allow visual sidesteps/approaches during the day. Seems silly if the departure runway is empty and closest to your stand not to allow an aircraft in good visual conditions to shoot an approach.

The existing runway will continue to be the priority runway for landings from the east and takeoffs towards the east.

The new runway will be the priority runway for landings from the west and takeoffs towards the west.