Vehicle delay and traffic emissions have serious influences on traffic flow operations on an arterial street. The emission factors during green and red are calibrated based on vehicle-specific power (VSP), then three optimisation models are formulated by minimising vehicle delay or traffic emissions and by considering left-turn bays and coordinated signals. The field data from Dalian city of China are used to validate these models. Vehicle compositions include car, medium-size vehicle (MSV) and bus. Carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxides (NOx) emissions are estimated. Three coordinated signal control scenarios are proposed and four simulation experiments are carried out. The results indicate that the emission factor during green is greater than that during red for CO, HC or NOx produced by car, MSV or bus in each lane group on an arterial street; the emissions estimated by the motor vehicle emission simulator model are greater than those calculated by the VSP-based model; and the signal control scenario obtained by minimising total emissions performs better than that obtained by minimising total delay or both of them.
VSP-based emission factor calibration and signal timing optimisation for arterial streets
IET Intelligent Transport Systems ; 13 , 1 ; 228-241
2018-11-01
14 pages
Article (Journal)
Electronic Resource
English
total delay minimisation , VSP-based emission factor calibration , CO , road vehicles , signal timing optimisation , vehicle composition , VSP-based model , carbon monoxide emission estimation , optimisation models , coordinated signal control scenarios , road traffic control , hydrocarbons emission estimation , total emission minimisation , traffic flow operations , nitrogen oxide emission estimation , air pollution control , minimisation , traffic emission minimisation , NO<sub>x</sub> , arterial streets , vehicle delay minimisation , motor vehicle emission simulator model , vehicle-specific power , left-turn bays
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