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Digital Library of the
European Council for Modelling and Simulation |
Title: |
Simulation
Of Highly Heterogeneous Traffic Flow Characteristics |
Authors: |
V. Thamizh Arasan, G. Dhivya |
Published in: |
(2010).ECMS
2010 Proceedings edited by A Bargiela S A Ali D
Crowley E J H Kerckhoffs. European Council for
Modeling and Simulation. doi:10.7148/2010 ISBN:
978-0-9564944-1-2 Doi: 10.7148/2010 24th
European Conference on Modelling and Simulation, Simulation Meets Global Challenges Kuala
Lumpur, June 1-4 2010 |
Citation
format: |
Arasan, V. T., & Dhivya,
G. (2010). Simulation Of Highly Heterogeneous Traffic Flow Characteristics.
ECMS 2010 Proceedings edited by A Bargiela S A Ali
D Crowley E J H Kerckhoffs (pp. 81-87). European
Council for Modeling and Simulation. doi:10.7148/2010-0081-0087 |
DOI: |
http://dx.doi.org/10.7148/2010-0081-0087 |
Abstract: |
Simulation models are
mathematical/logical representations of real-world systems. Microscopic
traffic simulation models have been playing an important role in traffic engineering
and particularly in cases, in which field studies, involving extensive data
collection, over a wide range, is difficult or expensive to conduct. As the
available simulation models can only replicate homogeneous traffic flow, a
model of heterogeneous traffic flow, named, HETEROSIM was developed to
simulate heterogeneous traffic flow. In this model, a dynamic stochastic type
discrete event simulation is adopted in which the aspects of interest are analysed numerically with the aid of a computer program.
The model was validated using field observed data of traffic flow. Then, the
model was applied to measure one of the fundamental charactertistics
of traffic flow, namely concentration. It is a broader term encompassing both
density and occupancy. Occupancy takes into account the traffic composition
and speed, and hence, occupancy is more meaningful than density. The concept
of occupancy can not be directly applied under
heterogeneous traffic conditions, as the traffic has no lane discipline. In
this paper, a new concept named, ‘area-occupancy’ is proposed to measure
traffic concentration. |
Full
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