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Predicting Regional Road Transport Emissions From Satellite Imagery (2312.10551v1)

Published 16 Dec 2023 in cs.CY

Abstract: This paper presents a novel two-part pipeline for monitoring progress towards the UN Sustainable Development Goals (SDG's) related to Climate Action and Sustainable Cities and Communities. The pipeline consists of two main parts: the first part takes a raw satellite image of a motorway section and produces traffic count predictions for count sites within the image; the second part takes these predicted traffic counts and other variables to produce estimates of Local Authority (LA) motorway Average Annual Daily Traffic (AADT) and Greenhouse Gas (GHG) emissions on a per vehicle type basis. We also provide flexibility to the pipeline by implementing a novel method for estimating emissions when data on AADT per vehicle type or/and live vehicle speeds are not available. Finally, we extend the pipeline to also estimate LA A-Roads and minor roads AADT and GHG emissions. We treat the 2017 year as training and 2018 as the test year. Results show that it is possible to predict AADT and GHG emissions from satellite imagery, with motorway test year $R2$ values of 0.92 and 0.78 respectively, and for A-roads' $R2$ values of 0.94 and 0.98. This end-to-end two-part pipeline builds upon and combines previous research in road transportation traffic flows, speed estimation from satellite imagery, and emissions estimation, providing new contributions and insights into these areas.

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