Towards a real-time microscopic emissions model |
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| Institution: | 1. Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA;2. Didi Chuxing Inc., Beijing, China;3. Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, MI, USA;4. University of Michigan Transportation Research Institute, University of Michigan, Ann Arbor, MI, USA |
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| Abstract: | This article presents a new approach to microscopic road traffic exhaust emission modelling. The model described uses data from the SCOOT demand-responsive traffic control system implemented in over 170 cities across the world. Estimates of vehicle speed and classification are made using data from inductive detector loops located on every SCOOT link. This data feeds into a microscopic traffic model to enable enhanced modelling of the driving modes of vehicles (acceleration, deceleration, idling and cruising). Estimates of carbon monoxide emissions are made by applying emission factors from an extensive literature review. A critical appraisal of the development and validation of the model is given before the model is applied to a study of the impact of high emitting vehicles. The article concludes with a discussion of the requirements for the future development and benefits of the application of such a model. |
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