The variability of generalised cost weighting parameters

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Authors

External organisations

  • University of Birmingham
  • Railway Consultancy Ltd.

Abstract

Although generalised cost theory underpins most modern transport planning, it is based on a number of assumptions, not least in terms of the weightings applied to different journey elements. Within a study or a geographical area, these are often assumed to be the same and constant, largely because it is difficult to capture and apply more accurate and directly relevant values. The authors of the paper suggest that variations in three of the weighting parameters of the generalised cost applicable to rail journeys affect the accuracy of modelling, and may lead to errors in the demand calculations if the changes are not considered carefully: First is the use of electronic media and communication equipment that appears to be reducing the factor associated with in-vehicle time. Secondly, average feelings about values of time appear to be bi-modally distributed, which means that quoted averages may not accurately reflect the true behaviour of anyone. Thirdly, those familiar with the travel environment appear to adopt weightings lower than those adopted by passengers unfamiliar with the particular mode, an issue which may affect management decision-taking.

Details

Original languageEnglish
Title of host publicationStephenson Conference Research for Railways 2015
Publication statusPublished - 1 Jan 2015
EventStephenson Conference Research for Railways 2015 - London, United Kingdom
Duration: 21 Apr 201523 Apr 2015

Publication series

NameStephenson Conference Research for Railways 2015
Volume2015-April

Conference

ConferenceStephenson Conference Research for Railways 2015
CountryUnited Kingdom
CityLondon
Period21/04/1523/04/15

ASJC Scopus subject areas