Anti-rat running trial starts on street in Marino, complaints on overuse of plastic bollards by Dublin City Council

— Despite the 12 colourful bollards, there’s reports of at least one motorist mounting the footpath to go around them.

A filtered permeability trial — to stop rat running — started yesterday on Haverty Road in Marino, Dublin.

Images of the new modal filter posted by councillors, as below, have resulted in complaints on the overuse of plastic bollards by Dublin City Council. These complaints were from people who seemed to both support and disagree with the scheme.

As reported earlier this month, a report on the consultation said that, of the 44 submissions received, 93% were in favour of the proposals.

The report said: “The main reasons residents were in favour was due to improving road safety especially for children, reducing cut-through traffic in the Marino area, the reduction in traffic-related noise, it prioritises cyclists over cars, and creates a calmer and more residential place to live.”

Some residents in Marino want such measures to cover a wider area, but Dublin City Council is still only working on these types of projects on a street-by-street basis.

(article continues after tweets)

On the bollards, the response from one councillor is that it is a trial and the look of the design can be fixed later.

However, other councils, both in Ireland and elsewhere, manage to trial such features without using so many plastic bollards.

Even with the number of bollards put in place, there are reports that at least one motorist has mounted the footpath to avoid the bollards.

Dublin City Council also has a record of including a large amount of the yellow and other bollards in longer-term projects, even past the trial stage.

Examples of alternatives:

IMAGE: Eden Park filter by DLRCC (image taken from Cllr Oisín O’Connor on Twitter).

IMAGE: LTN modal filter in Kingston upon Thames (image by Jack Fifield. Some rights reserved. Attribution 2.0 Generic (CC BY 2.0))


    • No, that is the international standard. The Vienna Convention on traffic signs and traffic signals legislates that all signs with a red circle are prohibition signs, ie that whatever is depicted inside the red circle is forbidden. There is no need for a diagonal line. Ireland, as the only country in Europe, has not signed up to or adhered to the convention and those responsible for traffic signs here have had no understanding of international conventions, and in particular the basic fact that red circles mean prohibition.

  1. @Jonivar I read up on The Vienna Convention recently and we’re far more compliant than it had thought.

    The Convention mainly includes examples with the diagonal line as prohibition signs.

    Interestingly the Convention also allows for our diamond yellow warning signs… but it seems to be some kind of secondary preference or compromise. In the visual examples, the diamond is shown without any colour (figure Ab) in Annex 3, and only in Annex 1 that the colour yellow is mentioned.

    I’m surprised how compliant we are with the convention vs what I can see on the average


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