Abstract
AbstractCongestion charging is one of the potential measures to control traffic congestion and reduce emissions in urban area, particularly in Hanoi, where both the population and traffic demand are increasing rapidly. This paper is to evaluate the impact of congestion charging on traffic and vehicle emissions in the city based on VISUM macroscopic traffic simulation software. Multiple testing scenarios were developed with assumptions in different sizes of charging zone and charging fee rates. The results showed that congestion charging in Hanoi could reduce the traffic volume in the main road by 10–25%, potentially reduce CO2 emission by 10–27%. The size of the charging zone, charging method, and charging rate are key factors that directly influence congestion charging. This study is supported by Hanoi DOT and is considered as a reference to support the development of Hanoi's congestion charging policies and regulations in the future.KeywordsCongestion chargingTraffic simulationVehicle emissionsCO2 reduction
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