An overview of the Transims micro-simulation model: application possiblities for South Africa

Show simple item record Rilett, L.R. (Laurence R.) Zietsman, J. (Josias)
dc.contributor.other Southern African Transport Conference (20th : 2001 : Pretoria, South Africa) 2008-11-21T09:33:16Z 2008-11-21T09:33:16Z 2001-07
dc.description This paper was transferred from the original CD ROM created for this conference. The material on the CD ROM was published using Adobe Acrobat technology. The original CD ROM was produced by Document Transformation Technologies Postal Address: PO Box 560 Irene 0062 South Africa. Tel.: +27 12 667 2074 Fax: +27 12 667 2766 E-mail: URL: en_US
dc.description.abstract Paper presented at the 20th Annual South African Transport Conference 16 - 20 July 2001 "Meeting the transport challenges in Southern Africa", CSIR International Convention Centre, Pretoria, South Africa. ABSTRACT:The Transportation Analysis and Simulation System (TRANSIMS) model was developed as a replacement of the traditional four-step travel demand model. The goal was to provide a simulation model that could analyze many of the issues facing transportation planners such as sustainable development, environmental impacts of proposed projects, and Intelligent Transportation Systems (ITS) deployment. While a simulation approach is powerful and potentially useful, a challenge for transportation modelers is that they will need to fully understand the new modeling paradigm so that the new model is not simply treated as a “black box”. The focus of this paper is on providing on overview of TRANSIMS based on lessons learned from research on real, calibrated transportation networks in Texas. An overview of the TRANSIMS model in terms of its main components along with a brief comparison to the four-step model will be provided. This is followed by an analysis of the highway link supply relationship in the TRANSIMS micro-simulation model with an emphasis on the implications for transportation planning practice. One of the benefits of a micro-simulation model is that the fundamental traffic flow properties are emergent from the model. This appears to eliminate the need for the modeler to assume a prior link flow-density-speed relationship. However, it is shown that the results from the model can be very sensitive to the calibration parameters chosen. Lastly, the paper examines implementation implications from a South African perspective and what transportation planners should be doing in order to prepare for the transition to micro-simulation planning models. en_US
dc.identifier.citation Rilett, LR & Zietsman, J 2001, 'An overview of the Transims micro-simulation model: application possiblities for South Africa', Paper presented to the 20th Annual South African Transport Conference, South Africa, 16 - 20 July. en_US
dc.identifier.isbn 0620277653
dc.language eng
dc.language.iso en en_US
dc.publisher SATC en_US
dc.relation.ispartof SATC 2001
dc.rights University of Pretoria en_US
dc.subject Transportation Analysis and Simulation System (TRANSIMS) en_US
dc.subject Intelligent transport systems (ITS) en_US
dc.subject Traffic flow en_US
dc.subject.lcsh Transportation -- South Africa -- Congresses en
dc.subject.lcsh Transportation -- South Africa -- Simulation methods en
dc.title An overview of the Transims micro-simulation model: application possiblities for South Africa en_US
dc.type Presentation en_US

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