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Comprehensive Versus Simplified Models
KTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Transport Studies, CTS. University of Leeds, United Kingdom .
2013 (English)In: Modelling Freight Transport, Elsevier, 2013, 245-256 p.Chapter in book (Refereed)
Abstract [en]

Many factors play a role in the decision how complex a model should become. The essence of modelling is to produce a replication of a system that is as rich as needed, with a model specification that is as lean as possible. Usually, a desire for a model that is both broad in scope and deep in detail, is detrimental for the modelling process (and result, eventually). In many cases, there are strict limits to model complexity due to constraints in data availability or computer power. This chapter intends to provide a simple guide for practical modelling applications, especially for those situations where there is a pressure for developing simple models, that follow the basic 4-step transport model architecture. We discuss the idea of model complexity including its relation to transport policy, and present strategies to implement the 4-step architecture, depending on the desired level of complexity. These strategies include the modelling of partial systems, integration of submodels and aggregation of agents.

Place, publisher, year, edition, pages
Elsevier, 2013. 245-256 p.
Keyword [en]
4-step models, Freight modelling, Policy analysis, Simplified models
National Category
Transport Systems and Logistics
Identifiers
URN: urn:nbn:se:kth:diva-150972DOI: 10.1016/B978-0-12-410400-6.00011-2Scopus ID: 2-s2.0-84903913414ISBN: 9780124104006 OAI: oai:DiVA.org:kth-150972DiVA: diva2:746733
Note

QC 20140915

Available from: 2014-09-15 Created: 2014-09-12 Last updated: 2017-05-29Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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