N52 Tullamore Bypass "fails skid test"

whyulittle · 09-07-2010 7:02pm #1

I heard a piece on local radio this morning that parts of the Tullamore Bypass has failed skid tests.

http://www.breakingnews.ie/ireland/tullamore-bypass-sections-fail-skid-safety-tests-464828.html

As a precaution, contractor PT McWilliams is erecting signs advising motorists to 'Drive with Care'.

roosterman71 · 10-07-2010 10:20am

I drove it last night and noticed there seemed to be alot of surface water. But it was no worse than any of the M4/M6 I came down from Dublin on

Mc Love · 10-07-2010 2:29pm

A lot of the new motorways/bypasses have bucket loads of surface water

KevR · 10-07-2010 2:38pm

A 'Drive With Care' sign where it's specifically known that there is a skid risk? Seems crazy to me!!

101sean · 10-07-2010 8:16pm

If the surface is SMA or porous asphalt, they don't achieve full skid resistance until the coating is worn off the top layer of stone, doesn't take long. When the material was new in the UK, slippery road signs were common, don't think they bother any more.

Of course if they've used stone with too low a PSV, that's a different matter entirely

Chris_5339762 · 10-07-2010 9:49pm

Just proves that the Tullamore bypass has really really low AADT because it was a political pet project and shouldnt have been touched.

123easy · 12-07-2010 12:05am

101sean wrote: »

If the surface is SMA or porous asphalt, they don't achieve full skid resistance until the coating is worn off the top layer of stone, doesn't take long. When the material was new in the UK, slippery road signs were common, don't think they bother any more.

Of course if they've used stone with too low a PSV, that's a different matter entirely

I think NRA prohibits use of SMA on high speed sections. Dont know if Porous is used here.

How come they only established/ made this public this now? Surely they would have had to haave done this test before the road oppened to traffic? no?

N52 Tullamore Bypass "fails skid test"

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