Research on the environmental benefits of the cancellation of the main toll stations based on traffic simulation model

To scientifically measure and evaluate the environmental benefits arising from the cancellation of provincial toll stations, this paper sets the application scenarios of toll stations under three charging modes (ETC, MTC, and after the cancellation of toll stations) by coupling the traffic simulation model of VISSIM and the vehicle exhaust emission model of MOVES, to probe into the environmental benefits of exhaust emissions before and after the cancellation of toll stations, and analyzes the changes of emission factors of exhaust pollutants (NO_X, CO, and HC) before and after the cancellation of toll stations with a case study of Yumenkou Provincial Toll Station. The analysis result suggests that when the type of toll station is changed from MTC to ETC, the exhaust emission at the toll station is averagely reduced by around 45%, and the effect of emission reduction is obvious. When the toll station is canceled, the intensity of emission reduction is about 30% by comparing ETC with the emission after the station is canceled.