Environmental Engineering Reference
In-Depth Information
Modelling of Air Pollutants of Highway
Roads in Hungary
Györgyi Baranka
Introduction
As new European Community member Hungary is obliged to harmonize its transport
sector according to the European rules. The harmonization process concerns among
others road network development, transport security as well as environmental
issues. Due to the lack of suitable technical tools the difficult contradictory issues
related to the environmental matters were not rationally managed. For the accom-
plishment of such concept a sophisticated environmental model is necessary consid-
ering all traffic related atmospheric pollutant emission of major roads. Implementing
such an environmental model Hungary could optimize its transport sector in
conformity with the EC rules.
The present work aims to provide decision makers the necessary technological
support and scientific information on air quality of highway roads. To achieve this
goal a road dispersion model will be used to estimate the possible effects of road
traffic on ambient air.
Emission
The expressway network in Hungary was in 2004 comprised of 650 km of motorway,
205 km of clearways and highways (which are comprised of highways serving as
expressways, highways with expressway features later converted to expressways,
and highway sections with expressway features) as well as 188 km of junction point
sections, 52 km of roads leading to rest areas, and 106 rest areas (see Fig. 1 ).
The Hungarian CO and NO x emissions from mobile sources have been investi-
gated by Merétei [1] . Emission of nitrogen oxides from road traffic continuously
G. Baranka ( * )
Hungarian Meteorological Service
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