Defining and understanding trip chaining behaviour |
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Authors: | Frank Primerano Michael A P Taylor Ladda Pitaksringkarn Peter Tisato |
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Institution: | (1) Policy and Planning Agency, South Australian Department for Transport, Energy and Infrastructure, Adelaide, Australia;(2) Transport Systems Centre, University of South Australia, GPO Box 2471, Adelaide, 5001, SA, Australia |
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Abstract: | Trip chaining is a phenomenon that we know exists but rarely investigate. This could be attributed to either the difficulty
in defining trip chains, extracting such information from travel diary surveys, the difficulty in analysing all the possible
trip chain types, or all of the above. Household travel diary surveys provide a wealth of information on the travel patterns
of individuals and households. Since such surveys collect all information related to travel undertaken, in theory it should
be possible to extract trip-chaining characteristics of travel from them. Due to the difficulty in establishing and analysing
all of the possible trip chain types, the majority of research on trip chaining has appeared to focus on work travel only.
However, work related travel in many cities does not represent the majority of activities undertaken and, for some age groups,
does not represent any travel at all. This paper begins by reviewing existing research in the field of trip chaining. In particular,
investigations into the definitions of trip chaining, the defined typologies of trip chains and the research questions that
have been addressed are explored. This review of previous research into trip chaining facilitates the following tasks: the
identification of the most useful questions to be addressed by this research; defining trip chaining and associated typologies
and defining data structures to extract trip chaining information from the household travel surveys conducted in metropolitan
Adelaide, South Australia. The definition and typology developed in our research was then used to extract trip-chaining information
from the household travel diary survey (MAHTS99) conducted in Adelaide in 1999. The extracted trip chaining information was
then used to investigate trip-chaining behaviour by households. The paper reports the results of this analysis and concludes
with a summary of the findings and recommendations for further investigations. |
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Keywords: | Travel behaviour Trip chain Travel survey Activity analysis |
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