Newlands Cross Upgrade EIS - European Investment Bank

South Dublin County Council N7 Newlands Cross Upgrade
Environmental Impact Statement
Arup Consulting Engineers
(v) erection of permanent noise barriers (both wayside and earthwork barriers) – those
being constructed as part of the works to provide noise reduction for the operation of
the motorway – as early as practicable in the construction process to provide
additional protection against construction noise;
(vi) regular maintenance of all equipment such that it continues to meet relevant national
or international standards, directives and recommendations on noise and vibration
emissions;
(vii) operation of equipment, whatever practicable, in the mode of operation that minimises
noise emissions;
(viii) shutting down equipment which is in intermittent use in the intervening periods
between work or throttling down to a minimum;
(ix) prohibition of works vehicles waiting or queuing on the public highway, with engines
running;
(x) construction of temporary infrastructure laid to convey materials and personnel (such
as haul roads) in a form which minimises the noise and vibration generated during its
operation;
(xi) where practicable, rotary drills and bursters actuated by hydraulic or electrical power
shall be used for excavating hard material;
(xii) handling all materials, particularly steelwork, in a manner which minimises noise.
Measures to reduce noise may include, but are not to be limited to, storage of
materials as far as possible away from noise sensitive receivers/receptors and use of
resilient mats around steel handling areas, and;
(xiii) all audible warning systems and alarms will be designed, where reasonably
practicable, to minimise noise. Non-audible warning systems where practicable will
be utilised in preference.
3.9.5.4 Working Hours
Normal working times will be 07:00 to 19:00hrs Monday to Saturday. Works other than the
pumping out of excavations, security and emergency works will not be undertaken outside
these working hours without the written permission of the Contracting Authority. This
permission, if granted, can be withdrawn at any time should the working regulations be
breached.
Works other than the pumping out of excavations, security and emergency works will not be
undertaken at night and on Sundays without the written permission of the Contracting
Authority. Night is defined as 19:00 to 07:00hrs.
When overtime and shift work is permitted the noise limits outlined in Table 3.5 will apply.
3.9.5.5 Emergency Work
The emergency work referred to above may include the replacement of warning lights, signs
and other safety items on public roads, the repair of damaged fences, repair of water supplies
and other services which have been interrupted, repair to any damaged temporary works and
all repairs associated with working on public roads.
3.9.6 Vibration
3.9.6.1 Introduction
This section deals with the potential for vibration during both construction and operational
phases of the proposed development.
December 2007 Page 34