WIT Press


Use Of A Mesoscopic Dynamic Assignment Model For Approaching The Evolution Of An Urban Transportation System In Emergency Conditions

Price

Free (open access)

Paper DOI

10.2495/EHR030231

Volume

7

Pages

10

Published

2003

Size

1463.63 kb

Author(s)

M. Di Gangi & P. Velonà

Abstract

In this paper a mcsoscopic model for the simulation of traffic flow in urban areas of medium dimensions during evacuation conditions is applied. The simulation of traffic with a within-day dynanlic approach is necessary, in order to represent the formation and dissipation of the vehicles queues, due to the presence of over saturation phenomena. The model, implemented insidc a general assignment procedurc, allows to obtain evacuation time and traffic parameters during the dynamic evolution of the evacuation phases. 1 Introduction The evacuation of an area involves

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