01475358

Component

Over the past decades Dynamic Traffic Assignment models are increasingly used for online and offline applications of various urban environments for the successful and efficient deployment of traffic control strategies and the evaluation of traffic management schemes and policies. The stability of the dynamic network loading procedure is crucial for achieving the most accurate representations of traffic phenomena in congested urban networks, where the increase of congestion level often creates problems of discontinuity and system failure especially when the demand levels are temporally unstable and severe. In this paper a stability analysis is proposed in the context of evaluating the properties of the final resulting dynamic network loading solution through the evolution of time. The scope of this analysis is to provide practitioners and researchers a useful tool for the temporal statistical analysis and risk assessment of the dynamic representation of traffic conditions. The methodology of the proposed stability analysis is implemented on two reference networks. The results for the statistical analysis and the evaluation of the stability properties are discussed over an extensive sensitivity analysis of the simulation step to the selected stability measures.

This paper was sponsored by TRB committee ADB30(4) Network Models in Practice.

01470560

13-1476

English

15p

2013

Transportation Research Board 92nd Annual Meeting

Digital/other

Figures; References; Tables

Dynamic traffic assignment; Mesoscopic traffic flow; Risk analysis; Stability criteria; Statistical analysis; Traffic equilibrium; Traffic models; Traffic simulation

Highways; Operations and Traffic Management; Planning and Forecasting; I71: Traffic Theory

Transportation Research Board Annual Meeting 2013 Paper #13-1476

PRP, TRIS, TRB, ATRI

Feb 5 2013 12:22PM