Pollution emitted from transport sources is an increasing area of concern worldwide, especially in the context of managing greenhouse gas emissions. 

The relationship between air pollution from road traffic and its effects is complex and air quality assessment requires a multidisciplinary approach starting with collecting all relevant traffic activity data from either traffic models or measurements. This data is then used as input to road traffic emission (factor) models to predict emission loads. Finally, dispersion models are employed to predict concentration levels locally (e.g. hot spot analysis) or regionally (e.g. photochemical smog modeling). Given the complexities associated with transport emissions, specialist advice is imperative in order to prevent erroneous outcomes. 

With a team of traffic assessment experts which include Nigel Holmes, Kerry Holmes and Robin Smit, we are well placed to perform transport modelling and transport studies at a local, regional, national and international level. Our experience includes projects conducted at Brisbane Airport and air quality monitoring and assessement projects at Sydney Airport. We have also completed a number of major roadway projects including the M2 Motorway, Western Orbital, Lane Cover Tunnel, Cross-City Tunnel and Brisbane Airport Link among others.

As each scale of interest has its own requirements (e.g. accuracy, level of detail), we use a modelling framework that matches the requirements and the level of detail of available transport data. 

More about our road transport modelling capabilities.