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BOC Immingham Dissolved Acetylene Project Environmental Statement: Vol. 2 Main Text
6.73 Construction dust will be controlled in accordance with good practice and the use of BAT. Dust
control measures will be incorporated into the CEMP. Examples of dust control measures include:
� water-spraying and sweeping of unpaved and paved roads to minimise dust and remove
mud and debris;
� using wheel washes, shaker bars or rotating bristles for vehicles leaving the site where
appropriate to minimise the amount of mud and debris deposited on the roads;
� sheeting vehicles carrying dusty materials to prevent materials being blown from the
vehicles whilst travelling;
� enforcing speed limits for vehicles on unmade surfaces to minimise dust entrainment and
dispersion;
� ensuring any temporary site roads are no wider than necessary to minimise surface area;
� damping down of surfaces prior to their being worked;
� storing dusty materials away from site boundaries and in appropriate containment (e.g.
sheeting, sacks, barrels etc);
� limiting stock pile heights and dampen down in dry weather; and
� limiting material drop heights during bulk transfers.
6.74 The measures in the CEMP will ensure that every possible precaution is taken to ensure no offsite
transport of dust. It is possible with care and good working practices, to control dust emissions to
a significant degree such that any effects of dust are not discernable beyond the site boundary.
6.75 On the basis of the above, all residential, commercial and industrial properties and designated
ecological sites are likely to remain unaffected by dust throughout the construction operations.
The impact arising from construction dust may therefore be considered to be negligible.
Road Transport
6.76 Construction traffic will typically use the strategic road network, i.e. the A180, accessing the site
locally via the A1173 and Kiln Lane onto Hobson Way; vehicles will be routed such that they do
not pass through the Immingham AQMA. Where feasible, consideration will be given to bring
materials and equipment to the site through Immingham Dock. For materials that were transported
through Immingham Dock, it is expected that vehicles would route via Robinson Road and onto
Laporte Road before joining Hobson Way.
6.77 The Highways Agency’s DMRB air quality assessment methodology for transport schemes has
been followed. An analysis is first undertaken on the magnitude of changes to vehicle flow rates,
speeds, fleet composition and road network alignment; if none of these parameters change
beyond the thresholds of significance published by the Highways Agency then no air quality
assessment is required. An assessment of the change in concentrations of NO2 and PM10 at
selected locations as a result of vehicle movements is required only if the DMRB criteria for
affected roads are exceeded with the proposed development in place.
6.78 Data that are used in the DMRB screening assessment are:
� annual average daily traffic (AADT) flows, average vehicle speeds and fleet composition in
terms of light duty vehicles (LDV) and heavy duty vehicles (HDV greater than 3.5 tonnes
gross weight including heavy goods vehicles (HGVs) and coaches);
� road type (either motorway ’A’ road, urban road or rural road);
� distance between the receptor façade and road centreline where receptors are within
200 m of affected roads; and
5100935.404 Environmental Statement August 2011 82