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Publication Detail
A framework for simulating large-scale complex urban traffic dynamics through hybrid agent-based modelling
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Manley E, Cheng T, Penn A, Emmonds A
  • Publication date:
    01/01/2014
  • Pagination:
    27, 36
  • Journal:
    Computers, Environment and Urban Systems
  • Volume:
    44
  • Status:
    Published
  • Print ISSN:
    0198-9715
Abstract
Urban road traffic dynamics are the product of the behaviours and interactions of thousands, often millions of individuals. Traditionally, models of these phenomena have incorporated simplistic representations of individual behaviour, ensuring the maximisation of simulation scale under given computational constraints. Yet, by simplifying representations of behaviour, the overall predictive capability of the model inevitably reduces. In this work a hybrid agent-based modelling framework is introduced that aims to balance the demands of behavioural realism and computational capacity, integrating a descriptive representation of driver behaviour with a simplified, collective model of traffic flow. The hybridisation of these approaches within an agent-based modelling framework yields a representation of urban traffic flow that is driven by individual behaviour, yet, in reducing the computational intensity of simulated physical interaction, enables the scalable expansion to large numbers of agents. A real-world proof-of-concept case study is presented, demonstrating the application of this approach, and showing the gains in computational efficiency made in utilising this approach against traditional agent-based approaches. The paper concludes in addressing how this model might be extended, and exploring the role hybrid agent-based modelling approaches may hold in the simulation of other complex urban phenomena. © 2013 Elsevier Ltd.
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