Methodological application of system dynamics for evaluating traffic safety policy

System dynamics (SDs) is a methodology that can be used to understand the behavior and dynamics of complex systems over time. SD utilizes a range of tools and techniques such as influence and causal loop diagrams, computer simulation and optimization. SD has been used to facilitate the analysis of c...

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Main Authors: Goh, Y., Love, Peter
Format: Journal Article
Published: Elsevier BV 2012
Online Access:http://hdl.handle.net/20.500.11937/3777
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author Goh, Y.
Love, Peter
author_facet Goh, Y.
Love, Peter
author_sort Goh, Y.
building Curtin Institutional Repository
collection Online Access
description System dynamics (SDs) is a methodology that can be used to understand the behavior and dynamics of complex systems over time. SD utilizes a range of tools and techniques such as influence and causal loop diagrams, computer simulation and optimization. SD has been used to facilitate the analysis of complex physical and social systems, e.g. water resources, climate change and industrial accidents. One of the key reasons for its growing popularity is that it allows policy experimentation and facilitates the discussion of ‘what-if’ scenarios. Within the realm of road traffic research, SD has been primarily used to examine micro level issues such as the interactions between the driver, infrastructure and the vehicle. Even though such micro level analysis are important, macro traffic safety policies can create more sustainable systems that pre-empt safety issues and reduce likelihood of traffic accidents. This paper develops two models to demonstrate how the methodology of SD can facilitate and encourage macro and meso level analysis of traffic safety policy. The first model is used to assess policy options so as to encourage the purchase of cars with higher safety ratings. The second model, is used to evaluate the impact of public transport policies on travel time and traffic safety considerations. The strength and weaknesses of the SD methodology in road transport/safety analysis are also examined. It is suggested that SD is most appropriate for formulating macro level policy as it can account for the dynamic complexity associated with the road transport system.
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spelling curtin-20.500.11937-37772017-09-13T14:32:14Z Methodological application of system dynamics for evaluating traffic safety policy Goh, Y. Love, Peter System dynamics (SDs) is a methodology that can be used to understand the behavior and dynamics of complex systems over time. SD utilizes a range of tools and techniques such as influence and causal loop diagrams, computer simulation and optimization. SD has been used to facilitate the analysis of complex physical and social systems, e.g. water resources, climate change and industrial accidents. One of the key reasons for its growing popularity is that it allows policy experimentation and facilitates the discussion of ‘what-if’ scenarios. Within the realm of road traffic research, SD has been primarily used to examine micro level issues such as the interactions between the driver, infrastructure and the vehicle. Even though such micro level analysis are important, macro traffic safety policies can create more sustainable systems that pre-empt safety issues and reduce likelihood of traffic accidents. This paper develops two models to demonstrate how the methodology of SD can facilitate and encourage macro and meso level analysis of traffic safety policy. The first model is used to assess policy options so as to encourage the purchase of cars with higher safety ratings. The second model, is used to evaluate the impact of public transport policies on travel time and traffic safety considerations. The strength and weaknesses of the SD methodology in road transport/safety analysis are also examined. It is suggested that SD is most appropriate for formulating macro level policy as it can account for the dynamic complexity associated with the road transport system. 2012 Journal Article http://hdl.handle.net/20.500.11937/3777 10.1016/j.ssci.2012.03.002 Elsevier BV restricted
spellingShingle Goh, Y.
Love, Peter
Methodological application of system dynamics for evaluating traffic safety policy
title Methodological application of system dynamics for evaluating traffic safety policy
title_full Methodological application of system dynamics for evaluating traffic safety policy
title_fullStr Methodological application of system dynamics for evaluating traffic safety policy
title_full_unstemmed Methodological application of system dynamics for evaluating traffic safety policy
title_short Methodological application of system dynamics for evaluating traffic safety policy
title_sort methodological application of system dynamics for evaluating traffic safety policy
url http://hdl.handle.net/20.500.11937/3777