BREAKDOWN AND MEASUREMENT EFFECTS METHOD OF CORRELATIVE EXPLANATORY VARIABLES

In transport analysis in order to explain the changes of a factor we generally have to deal with several correlative explanatory variables. Quantifying how each variable affects the study object is therefore often difficult. Although this is a familiar problem in the context of modelling it is frequently poorly handled. In a situation like this change in the study object cannot always be expressed in a simple manner as the sum or product of the changes in the explanatory variables. To deal with this question the authors have proposed a method to break down and measure the effect of each explanatory variable. The paper starts with a description of the method and then applies it to the case of changes in the market share of public transport. For the covering abstract see ITRD E108404.

• Record URL:
  http://abstracts.aetransport.org/conference/index/id/6
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0860503410
• Corporate Authors:

  PTRC EDUCATION AND RESEARCH SERVICES LTD

  1 VERNON MEWS, VERNON STREET
  LONDON,   United Kingdom  W14 0RL
• Authors:
  • Bonnel, P
  • CABANNE, I
• Conference:
  • PROCEEDINGS OF SEMINAR K OF THE EUROPEAN TRANSPORT CONFERENCE 2000, HELD HOMERTON COLLEGE, CAMBRIDGE, UK, 11-13 SEPTEMBER 2000 - TRANSPORT MODELLING. VOLUME P445
• Publication Date: 2000

Language

• English

Media Info

• Features: References;
• Pagination: p. 205-25

Subject/Index Terms

• TRT Terms: Correlation analysis; Modal split; Motor vehicles; Ownership; Planning; Scale models; Structural models; Urban areas
• ITRD Terms: 6527: Correlation (math, stat); 675: Modal split; 6205: Model (not math); 143: Planning; 313: Urban area; 315: Vehicle ownership
• Subject Areas: Bridges and other structures; Data and Information Technology; Planning and Forecasting;

Filing Info

• Accession Number: 00807299
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-86050-341-0
• Files: ITRD
• Created Date: Apr 4 2001 12:00AM