Development of an Arterial Performance Measurement System

Recently, an analytical model for real-time estimation of travel times along signalized arterials was developed. The application of the model on two arterial sites and comparisons of the estimated travel times with simulated and field data show that the model accurately predicts travel times on the selected sites. This paper will present several important extensions and refinements to account for the effects of detector placement and queue spillovers. The model is also modified to construct trajectories of individual vehicles in the time-space and estimate queue lengths in a disaggregate manner. The paper will also describe the integration of the model into an archival data management system for continuous measurement and monitoring of traffic performance along arterials.