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A Brisbane Tunnel Study to Validate Australian Motor Vehicle Emission Models
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 10, 2015 by SAE International in United States
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Reliable motor vehicle emission predictions are needed to ensure sound policy decisions. This study reports on a comparison between measured in-tunnel fleet emissions and predictions made with two new Australian vehicle emission software programs (COPERT Australia and PΔP) for one air pollutant: nitrogen oxides (NOx). Measurements were taken from a 6.8 km tolled motorway tunnel that links several major roads in Brisbane, Australia. The validation study suggests that modelled vehicle emissions of NOx are similar to those measured in the tunnel with a prediction error less than ±25% for both light-duty and heavy-duty vehicles. A possible reason for the difference is a suspected younger and cleaner fleet in the tunnel as compared with the Queensland average fleet. Further analysis of license plate information is anticipated to verify this.
CitationSmit, R. and Kingston, P., "A Brisbane Tunnel Study to Validate Australian Motor Vehicle Emission Models," SAE Technical Paper 2015-01-0058, 2015, https://doi.org/10.4271/2015-01-0058.
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