The Accuracy Of Traffic Microsimulation
Modelling
Author(s)
D. O’Cinneide & D. Connell
Abstract
Previous work at University College Cork into the use and evaluation of
microsimulation models suggested they are generally suitable for the
examination of alternative urban traffic management proposals but that there is
little independent validation of the accuracy of microsimulation. In particular,
there appeared to be difficulties in comparing the modelled and actual queue
lengths. This paper describes a study into the evaluation and accuracy of urban
traffic microsimulation models. This involved a review of the available
information and the construction of four Pyramics microsimulation models for
the road network adjacent to University College Cork. Recommendations are
made on queue length validation and on improvements to microsimulation
modelling.
Keywords: microsimulation accuracy, Paramics, evaluation, traffic modelling.
1 Introduction
This paper evaluates the accuracy of microsimulation modelling of congested
urban networks using the Paramics software package. The University College
Cork area road network was modelled as a whole, involving route choice, and
also modelled in three separate sections (corridor models) not involving route
choice to determine the effects of route choice on model accuracy. The various
evaluation criteria used for model validation and the suitability of these criteria
for the development of accurate microsimulation models are first described.
Recommendations are made on improvements to Paramics and on
microsimulation in general and also on the evaluation criteria used for model
validation.
Keywords
microsimulation accuracy, Paramics, evaluation, traffic modelling.
Related Book
Other papers in this volume
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