COMHAIRLE CONTAE ÁTHA CLIATH THEAS
SOUTH DUBLIN COUNTY COUNCIL
MEETING OF SOUTH DUBLIN COUNTY COUNCIL
Monday, March 09, 2009
HEADED ITEM NO. 8
Report on Public Consultation Procedure under Part 8, Planning & Development Regulations 2001 - 2003 for the proposed Redevelopment of existing traveller halting Site at Turnpike, Tallaght, Dublin 24
Under the Traveller Accommodation Programme 2009-2013 the existing Traveller Development at Turnpike was identified for redevelopment.
Notice in accordance with Article 81 of the Planning and Development Regulations 2001 - 2003 was published on Tuesday 24th June 2008 in respect of the redevelopment of halting site at Turnpike, Tallaght, Dublin 24.
The work will comprise of 3 No. dwelling units as follows:
2 No. 4bed/8person units and
1 No 2bed/3person unit.
The work to include demolition of existing walls and toilet blocks within the site, road works, infrastructure, landscape works, and all necessary associated ancillary works on the site.
Plans and drawings of the proposed development were placed on display at the headquarters of South Dublin County Council, County Hall, Tallaght, Dublin 24, until Tuesday 5th August 2008. A further period of two weeks were allowed for receipt of written submissions or observations with respect to this matter dealing with the proper planning and sustainable development of the area in which the development would be situated.
One submission only was received in relation to the proposed development as a result of the PART 8 process.
This submission was from the National Roads Authority. NRA Submission
In it the N.R.A. recommended that “an appropriate noise and vibration assessment (in accordance with the “Environmental Assessment and Construction Guidelines” published by the NRA)” be carried out on the site.
The Architectural Services Department sought quotations from suitably qualified specialists and ICAN Acoustics was appointed to carry out the assessment. Their report was received on 30/10/2008. Acoustic Report
No other submissions/comments were received in regard to the proposed development.
In brief: The M50 interchange at the Red Cow Roundabout is, and has been for some time, a busy construction site with the result that it has been impossible for the acoustic surveyors or ourselves to access any meaningful information re the actual anticipated future noise levels at the site. However measurements were taken at the site under current conditions. Expected daytime and evening levels were also interpolated using 24hour measurements from a similar situation on another Irish motorway.
The resulting report indicates that the derived figure is an average of 5dB above the N.R.A. guidelines. The main area of concern is the bedrooms at first floor (dormer) level.
A general approach to incorporating mitigating measures in the design was suggested in the report. Subsequent to the formal report further details and product information was submitted by ICAN acoustics.
Please see brief summary of mitigating measures proposed below.
Site Boundary:
This should be of ‘imperforate’ material (this can include: rendered masonry, precast concrete, timber barriers, even glass…) Essentially once the material has a reasonable density (ICAN will define this if we are considering alternatives) and there are no air-gaps or perforations, then it will suffice as a barrier.
Increasing the height of the boundary wall to 2.4 -2.6 metres will offer improvement re traffic noise from the immediately adjacent slip-road.
Dormer Roof Spaces:
Low mass roof: Substantial ‘break-in’ of sound under normal design. An IsoMax system should be considered and additional layers of plasterboard with a mineral wool absorber. This is likely to be a build up using Dense Mineral Wool for thermal and noise absorption. The inner plasterboard build up will need to be significant with two layers staggered and perhaps isolated from the roof structure on a mounting system. All gaps would need to be closed and service penetrations seriously considered and treated.
Ventilation: Normally large sound ‘break-in’ at a site such as this. Consider an acoustic airbrick, located on the sheltered side of the building.
As the proposed scheme, as modified in the foregoing report, is in accordance with the proper planning and sustainable development of the area, it is proposed to proceed with the development with the modifications as indicated above.
A report in respect of the redevelopment of the Traveller Specific Site at Turnpike was noted by the Lucan/Clondalkin Meeting of the 19th May 2008.