Real-Time Calibration of Platoon Dispersion Model to Optimize the Coordinated211 Traffic Signal Timing in ATMS Networks

摘要

Vehicles form platoons at the exit point of a given traffic signal, which will211u001edisperse while they progress along the link towards the next downstream traffic 211u001esignal. The platoons may disperse either more quickly or slowly depending on the 211u001eactual road geometric and traffic conditions between the two adjacent 211u001eintersections of interest. The adequate modeling and description of the platoon 211u001edispersion behavior ultimately affect the quality of the coordinated traffic 211u001esignal timings. At present, the most widely used modelng method of platoon 211u001edispersion is the TRANSYT's macroscopic platoon dispersion model in which the 211u001edetermination of its major parameters is based on the empirical values. This 211u001ereport presents a methodology for calibrating the platoon dispersion parameters 211u001ein the TRANSYT's platoon dispersion model, which is based on a statistical 211u001eanaysis of link travel time data rather than more traditional goodness-of-fit 211u001etests between the observed and the projected vehicles' progression patterns.