Newlands Cross Upgrade EIS - European Investment Bank

South Dublin County Council N7 Newlands Cross Upgrade
Environmental Impact Statement
GLOSSARY
AADT Annual Average Daily Traffic (total annual flows divided by
365).
ABP An Bord Pleanála
AOD Above Ordnance Datum (Malin).
Aquifer Rocks and Soils which transmit water with ease through their
pores and fractures.
AQS Air Quality Standards
Asphalt Road surfacing material
At Grade Road junction at which no road passes over another.
Average Return Interval The average returning period for a flooding event of a certain
magnitude i.e. a 1 in 100 ARI flood event potentially occurs
once a century.
Blacktop Generic description of bitumen macadam and asphalt
Boulder Clay Dublin Boulder Clay was deposited below the ice sheet during
the last glaciation, and generally consists of variable amounts of
gravel embedded in a firm to very stiff clayey, silty matrix.
Water saturated granular materials occur locally within the
Boulder Clay as lenses and pockets.
Carbon Dioxide (CO2) Colourless odourless gas produced by the combustion of
carbonaceous material and is considered the least harmful of the
major gases, for a given volume, but is the largest contributor to
total “greenhouse” gases in the atmosphere.
Carbon Monoxide (CO) Colourless, almost odourless flammable gas produced by the
incomplete combustion of carbonaceous materials. It is
preferentially absorbed into the blood in the place of oxygen.
Carriageway That part of the road used by vehicular traffic.
Capacity Capacity of a facility is the maximum number of vehicles which
can use it in an hour.
CO Carbon Monoxide
Compact Diamond Shaped Interchange A conventional grade separated junction with four ramps
connecting the mainline to the secondary road at two junctions
on the secondary road.
CPO Compulsory Purchase Order
Cost Benefit Analysis Primarily an indication of whether a project is economically
viable; i.e. whether economic benefits resulting from the
Arup Consulting Engineers
December 2007