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N20/N72 - Mallow Roundabout Upgrade

  • 30-08-2017 2:50pm
    #1
    Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭


    meanwhile the N72/N20 roundabout is surfaced and marking out is in hand.


Comments

  • Closed Accounts Posts: 6,196 ✭✭✭boardsuser1


    Isambard wrote: »
    meanwhile the N72/N20 roundabout is surfaced and marking out is in hand.

    Any photo?


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    Any photo?

    i'll try and get over there and get one for tomorrow if noone else can oblige


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    took a while , but here's one for you. Lots of people still sticking to the old lanes of course.

    DSC05690.jpg


  • Registered Users, Registered Users 2 Posts: 8,616 ✭✭✭grogi


    Isambard wrote: »
    took a while , but here's one for you. Lots of people still sticking to the old lanes of course.

    What a disgrace... Are we genetically incapable of making a high-throughput roundabout that is not ambiguous in this country?!

    427135.jpg


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    what's ambiguous about it?


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  • Registered Users, Registered Users 2 Posts: 8,616 ✭✭✭grogi


    Isambard wrote: »
    what's ambiguous about it?

    Exiting to the south from right lane for instance. Despite following the arrows when entering the RB, you still need to give way to the cars in the left lane.

    Ambiguous use of dashed lines is the second. In developed countries the lanes on the RB are marked with long dashes, while the lane guidance at the entrance is using short dashes. In here I can imagine cars that are going from the west to south migrating from the left to the right lane at the north-most point of the roundabout.


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    no you don't. If you are coming from the N72 the rh lane is for right turns and the left lane is for left turn and straight on.


  • Registered Users, Registered Users 2 Posts: 8,616 ✭✭✭grogi


    Isambard wrote: »
    no you don't. If you are coming from the N72 the rh lane is for right turns and the left lane is for left turn and straight on.

    Yes, but the dashed line says different story. Two signs signal different things...


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    they merely divide the two lanes.


  • Registered Users, Registered Users 2 Posts: 8,616 ✭✭✭grogi


    Isambard wrote: »
    they merely divide the two lanes.

    Exactly. They divide two lanes. The moment you cross a lane divider (AKA dashed line) you need to yield to the cars in the lane you're entering.

    Compare with my photoshop and you'll see the difference...


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  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    that's what your indicators are for and your roadcraft


  • Banned (with Prison Access) Posts: 1,142 ✭✭✭Middle Man


    grogi wrote: »
    What a disgrace... Are we genetically incapable of making a high-throughput roundabout that is not ambiguous in this country?!
    It could be worse - at least the design is using the more traditional English type geometry with reasonably smooth curves. The new Irish type geometry is much worse with virtual 90 deg turns into the circulatory carriageway.


  • Registered Users, Registered Users 2 Posts: 8,616 ✭✭✭grogi


    Isambard wrote: »
    that's what your indicators are for and your roadcraft

    I'll manage, not to worry. Driving an old crap with scratches all around and a bull bar helps a lot...

    But the road marking should be there to help, not to disorient.


  • Registered Users, Registered Users 2 Posts: 1,015 ✭✭✭Kevwoody


    grogi wrote: »
    I'll manage, not to worry. Driving an old crap with scratches all around and a bull bar helps a lot...

    But the road marking should be there to help, not to disorient.



    Absolutely nothing wrong with the road marking in my opinion. Your photoshopped version just looks cluttered and over complicated


  • Registered Users, Registered Users 2 Posts: 8,616 ✭✭✭grogi


    Kevwoody wrote: »
    Absolutely nothing wrong with the road marking in my opinion.

    It the same design used from many years. It simply is inadequate for today traffic volume. Turbine RB are much more efficient with dealing with traffic.
    Your photoshopped version just looks cluttered and over complicated

    It might from that perspective, photoshoping in Paint does not help either.

    It's completely different story if you are in the car. The lines just guide you through the roundabout, once you enter fro the right lane you don't cross any lanes.

    That's the schematics of such RB, even oriented the same way. It's not a new idea, it works very well.

    427152.png


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    i can't understand the preoccupation with crossing lanes. You indicate your intention at the exit before the one you are taking, noone should be moving up on you on your nearside so what's the problem?

    Your scheme has two areas where there is only one lane whereas the intention of the works is to make the roundabout two lane. You also have reversed the N72 lanes which would cause congestion where the bulk of the traffic goes to the right or straight on and in your scheme that would all be confined to one lane , rather than split between two lanes.


  • Registered Users, Registered Users 2 Posts: 1,996 ✭✭✭two wheels good


    Why is there a STOP sign on one approach to the RB? A vehicle is expected to halt when the RB is empty?
    EDIT: referring to the previous photo.


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    always was a stop sign there, but as they have put YIELD signs on the road, I imagine it will be removed.


  • Registered Users, Registered Users 2 Posts: 8,616 ✭✭✭grogi


    Why is there a STOP sign on one approach to the RB? A vehicle is expected to halt when the RB is empty?

    That's what the stop sign is for, right? Stop and yield.


  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,523 Mod ✭✭✭✭marno21


    There was always stop signs at that roundabout, likely haven't been removed yet


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  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    stop and yield are different from each other.


  • Registered Users, Registered Users 2 Posts: 8,616 ✭✭✭grogi


    Isambard wrote: »
    stop and yield are different from each other.

    So is it Stop and don't yield?!


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    I suspect you know full well


  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,523 Mod ✭✭✭✭marno21




    Mod: road sign functions are off topic for this thread. Please discuss elsewhere as appropriate

    Back to M20



  • Banned (with Prison Access) Posts: 1,142 ✭✭✭Middle Man


    grogi wrote: »
    It the same design used from many years. It simply is inadequate for today traffic volume. Turbine RB are much more efficient with dealing with traffic.



    It might from that perspective, photoshoping in Paint does not help either.

    It's completely different story if you are in the car. The lines just guide you through the roundabout, once you enter fro the right lane you don't cross any lanes.

    That's the schematics of such RB, even oriented the same way. It's not a new idea, it works very well.

    427152.png
    That is a turbo roundabout - a design that is commonly used in the Netherlands.


  • Registered Users, Registered Users 2 Posts: 8,616 ✭✭✭grogi


    Middle Man wrote: »
    That is a turbo roundabout - a design that is commonly used in the Netherlands.

    Not only - from France to Poland, almost all newly build RB are like that. But it was the Dutch that started to use it I think.


  • Registered Users, Registered Users 2 Posts: 14,015 ✭✭✭✭Mc Love


    Most irish people still wont be able to use it properly


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    it wont work in this application for the reasons I gave in post 3232.


  • Closed Accounts Posts: 6,196 ✭✭✭boardsuser1


    Isambard wrote: »
    it wont work in this application for the reasons I gave in post 3232.

    Just looked at it, that Marno21 :confused:


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  • Registered Users, Registered Users 2 Posts: 8,616 ✭✭✭grogi


    Middle Man wrote: »
    It could be worse - at least the design is using the more traditional English type geometry with reasonably smooth curves. The new Irish type geometry is much worse with virtual 90 deg turns into the circulatory carriageway.

    I haven't met one yet fortunately, do you have a picture/Google maps link?


  • Moderators, Entertainment Moderators, Science, Health & Environment Moderators Posts: 14,523 Mod ✭✭✭✭marno21




    Mod: can we please discuss roundabout design elsewhere as it has no relevance to this project. The Annabella roundabout has been designed and built and won't be changing.



  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    I came down from Cork this evening about 4.30, long queue in left hand lane, right hand lane empty, I guess it will take a while for people to get used to it, although the works have been going on for months, you would have thought people would have copped on to what was afoot. In fairness the markings further back have yet to be altered so strangers wouldn't know about the changes.

    Re the stop sign, it's still there but the northbound signs are temporary YIELD so I'm assuming signage has yet to be sorted,

    Thank you Marno21


  • Registered Users, Registered Users 2 Posts: 6,047 ✭✭✭Truckermal


    They have made a total balls of this for traffic especially truck's coming from Limerick going to Cork and towards Killarney! I can foresee plenty of collision's here as truck's cannot use the roundabout and keep to the lanes..


  • Moderators, Regional South Moderators Posts: 5,897 Mod ✭✭✭✭Quackster


    Truckermal wrote: »
    They have made a total balls of this for traffic especially truck's coming from Limerick going to Cork and towards Killarney! I can foresee plenty of collision's here as truck's cannot use the roundabout and keep to the lanes..

    All the truck has to do is straddle both lanes on approach to the roundabout. Standard practice.


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    Quackster wrote: »
    All the truck has to do is straddle both lanes on approach to the roundabout. Standard practice.

    and there isnt room for anything bigger without knocking down the Roundabout Tavern and the footbridge


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  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    today in the rain. I'd have preferred the two naked horsemen personally.

    DSC06047.jpg


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    note the YIELD sign


  • Registered Users, Registered Users 2 Posts: 1,015 ✭✭✭Kevwoody


    Sorry to go off topic here, but the roundabout inn is currently engulfed in flames!


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    oh no, that sounds disasterous

    AA roadwatch confimring this "a building fire" they say.


  • Registered Users, Registered Users 2 Posts: 11,553 ✭✭✭✭Copper_pipe


    The Roundabout Inn beside the Roundabout


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  • Registered Users, Registered Users 2 Posts: 11,553 ✭✭✭✭Copper_pipe




  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    the fire aftermath and a good view of the roundabout itself

    roundabout_fire.jpg


  • Registered Users, Registered Users 2 Posts: 324 ✭✭kurtainsider


    So the statue of the horseman isn't going to be reinstated? They've replaced with huge plastic signs. How is that an improvement? I think that it's criminal. That statue was lovely and I'm sure held in more affection by the locals than that stupid red plastic whateveritis will be. Disgraceful vandalism by the planners. Just wait till the grime and moss get going on it - it'll be horrible.


  • Registered Users, Registered Users 2 Posts: 5,795 ✭✭✭Isambard


    the two naked horsemen symbolised to me a meeting at the Crossroads of North Cork. I fully agree with you.


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