Generating vehicle trajectories from intersection delay for estimating emissions

This study develops a methodology of generating vehicle trajectories from intersection delay for estimating emissions at an intersection. First, a typical vehicle trajectory is illustrated, and relevant parameters are introduced. A proposition is then deduced to characterize a special case of vehicle trajectories without the idling component. Based on this proposition, a critical trajectory is defined to separate two situations of intersection delay: with and without the idling component. Vehicle trajectories in those two situations are generated respectively, and emission estimations can be made using MOVES. It is mathematically proven that the methodology is applicable to general forms of acceleration functions. A case study employing a polynomial acceleration function is conducted to demonstrate the application of the proposed methodology.

Proceedings of the 19th International Conference of Hong Kong Society for Transportation Studies, HKSTS 2014 - Transportation and Infrastructure

Generating vehicle trajectories from intersection delay for estimating emissions Conference Paper