Improvement and Verification of Dynamic Traffic Flow Simulator “ DEBNetS”

Abstract

In this study, improvements are made to the dynamic traffic flow simulator, “ DEBNetS.” First, to reproduce the phenomenon of congestion propagation to upstream, a pseudo segment is added to the series of segments by which each link is represented in the simulation. The method of processing traffic event is also modified. Next, to reduce computational time, the algorithm for sorting events is improved. Verification and validation analyses have indicated substantially reduced computational time and a high correlation between observed and simulated traffic volumes. The results however have indicated that the reproducibility of average traffic speed is yet to be improved.