Predicting Optimal Trajectory of Left-Turning Vehicle at Signalized Intersection

:Microscopic simulation is used for safety evaluation of the interactions between turning vehicles and pedestrians/cyclists at signalized intersections. For reliability, the employed models should realistically capture the vehicle turning trajectory. Previous studies considered the vehicle path and speed using different models. However, this may not guarantee consistency of the physical relationship between the location and speed. We propose a minimum jerk theory-based method for modelling the trajectory of a left-turning vehicle at a signalized intersection. The method enables simultaneous determination of the vehicle path and speed and was verified by comparing its results with several empirical trajectories.