This paper compares the performance under various scenarios of an urban traffic corridor section subjected to a range of vehicle types. A micro-simulation-based model of the corridor was developed from first principles to stochastically assign characteristics and headways for each vehicle and then to track each vehicle as it moved along the corridor. Kinematic behaviour of the different vehicle types (ranging from passenger cars through to B-doubles) were obtained from GPS data collected during a series of chase car surveys on an urban arterial freight route in suburban Brisbane. The car-following and lane-selection algorithms used by the model are outlined in the paper. The performance of the corridor was found to be sensitive to traffic control measures including the speed limit and traffic signal controller settings such as cycle time and progression design speed. A range of freight policy scenarios were examined, including the effects of increasing freight volumes, freight vehicle mode choice, and vehicle type- specific lane restrictions. Some policies having the potential to improve corridor traffic performance and freight efficiency were able to be identified. (Author/publisher) For the covering entry of this conference, please see ITRD abstract no. E214133.
Samenvatting