摘要：Surface transportation yields a significant amount of greenhouse gas (GHG) emissions annually, while concurrently being the primary energy consumer among the transportation sectors. Excessive emissions and energy consumption are typically observed at traffic congested areas and around traffic signalized intersections. At those latter locations, vehicles are frequently subjected to long idling periods and deceleration/acceleration maneuvers due to the operation of the traffic lights. Thus, the characteristics of the traffic signals are a determinant regarding traffic flow and its impacts on the environment. Within the framework of the present research, the environmental impacts of actuated signals on an 11km signalized arterial street that connects Thessaloniki's city center with the local airport and the eastern suburbs of the city are evaluated. The morning peak period of a typical weekday on this arterial has been simulated with the use of the traffic modelling software AIMSUN. Network-wide and section output statistics (i.e. fuel consumed, carbon dioxide (CO2), nitrogen oxides (NOx) and particulate matter (PM)) are presented in this research.
