RapidAir is a state-of-the-art air quality diagnostics and decision support tool. It facilitates fast and efficient city-scale air quality modelling and mitigation scenario testing for a comprehensive range of emission sources and pollutants. With spatial resolution down to one metre, and run times in minutes, RapidAir equips decision makers with the ability to test and optimise complex air pollution abatement strategies with unrivalled power and speed.

The air quality challenges faced by a city are ultimately dictated by their own unique circumstances – a combination of factors that define the social, economic, political and physical environments. As such, no two air quality management solutions will ever be the same – effective solutions must be tailored to a city’s distinct characteristics.

Globally, cities face common challenges that include rising population, increasing urbanisation and growing traffic levels. Current air quality modelling tools tend to be cumbersome when applied to city scale domains at the high resolutions needed by policy makers. As such, they have limited operational applications.

RapidAir resolves this problem by providing accurate, validated, results at unrivalled spatial resolution and achieved in fast run times. As an operational air pollution tool, it provides advanced air quality diagnostics and abatement scenario-testing capabilities – equipping cities with the tools to develop effective air quality management strategies.

RapidAir is underpinned by the United States Environmental Protection Agency’s AERMOD modelling codes. It includes an emissions model with up-to-date, fully validated and peer reviewed, emission factors and supports modelling of emissions from all of the common source sectors (e.g. transport, industry, construction, demolition and landfill).

Modelled pollutants include gases (nitrogen oxides (NOx), NO2, sulfur dioxide (SO2) and carbon monoxide (CO)) and particles (PM10 and PM2.5) with accurate concentration (mass and volume) predictions over domains that span street, city, regional and national scales. RapidAir integrates local emissions, meteorology and measurements to ensure a complete representation of urban air quality.

RapidAir can be configured to serve data to online visualisation platforms or client websites. This provides decision makers with detailed insight into the key emissions sources that contribute to air quality pollution standards being exceeded. In addition, its powerful scenario analysis tools support the development of air pollutant mitigation strategies.

RapidAir enables the impacts of ‘business as usual’ and alternative mitigation scenarios to be quickly visualised over city or street-level scales.

RapidAir offers a holistic approach to solving air pollution problems – providing decision makers with confidence that a plan delivers a solution rather than simply displaces a problem to other locations within a city.

Our deep understanding of all aspects of air pollution means that our clients receive unrivalled advice on:

  • The development and evaluation of costeffective, evidence-based, clean air and low emission zone strategy and pollution mitigation schemes taking account of:
    • Current air pollution conditions using state-ofthe- art modelling techniques.
    • Future air pollution conditions taking into account how emissions are likely to change over time.
    • Designing and assessing the impact of available mitigation options to reduce emissions at street, city and regional scales.
  • The assessment of planning and permit applications, and identifying and managing the effects on air quality of industrial facilities, infrastructure developments and trafficgenerating development.