STATISTICAL ANALYSIS AND VALIDATION OF MULTIPOPULATION TRAFFIC SIMULATION EXPERIMENTS
Computer simulation has become a very powerful decision aid for varied facets of traffic engineering. Simulation experiments are often used to fit a metamodel of interest between the mean response and a selected set of input factors. This is done by carefully designing statistical experiments under alternative system designs, which are referred to as multipopulation simulation experiments. Validation and statistical analysis procedures are presented on linear metamodels from multipopulation traffic simulation networks under the common random number (CRN) strategy on three sample networks using the TRAF-NETSIM model. Under the CRN strategy, positive correlations are induced among the observations, and hence the usual statistical analysis cannot be applied to obtain point estimates and confidence intervals; therefore it must be modified. Before the statistical analysis is conducted, certain assumptions of the CRN strategy should be validated--those that, if violated, render the modified statistical analysis invalid.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309062039
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1510, Traffic Flow Theory and Characteristics with Applications for Intelligent Transportation System Technologies. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Authors:
- Joshi, Shirish S
- Rathi, Ajay K
- Publication Date: 1995
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 35-44
- Monograph Title: Traffic flow theory and characteristics with applications for intelligent transportation system technologies
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Serial:
- Transportation Research Record
- Issue Number: 1510
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Experiments; Population; Simulation; Statistical analysis; Traffic simulation; Validation
- Old TRIS Terms: Common random number strategy; Multipopulation simulation experiments
- Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Society; I71: Traffic Theory;
Filing Info
- Accession Number: 00715623
- Record Type: Publication
- ISBN: 0309062039
- Files: TRIS, TRB
- Created Date: Jan 19 1996 12:00AM