Indicative impacts of vehicular idling on air emissions

Quantifying the impacts of idling or idling stops is not a straight forward equation, as it includes a variety of parameters including the types of vehicles on the road, age of
the vehicles, vehicular combustion and emission control technology, the traffic load on the roads leading to the congestion times, and hence forth. A survey is essential to
understand the prevailing conditions and to conduct a thorough analysis along the corridors. This paper attempts to present an indicative analysis of the idling on the roads using an average set of emission factors and consumption patterns; and to estimate the share of idling on vehicular emission totals on a per vehicle basis.