期刊
JOURNAL OF TRANSPORT GEOGRAPHY
卷 19, 期 6, 页码 1155-1162出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jtrangeo.2011.02.009
关键词
Accessibility; Logsum; Experienced-utility; Decision-utility; Random Regret Minimization
This paper argues that there is a discrepancy between what Logsum-measures of accessibility aim to measure (experienced-utility) and what they actually measure (decision-utility). The latter type of utility refers to the evaluation of an alternative with the aim of making a decision, while the former refers to the evaluation of a chosen alternative after the choice has been made. We argue that accessibility should preferably be conceptualized and operationalized in terms of experienced-utility, but that this type of utility is difficult to measure. Motivated by these observations we show, taking the Logsurn as a starting point, how its building blocks (parameters estimated from choice patterns) can be used to construct closed-form and easy to compute accessibility-measures that provide an approximation of experienced-utility. We distinguish between decision-making based on utility-maximization and regret-minimization premises. Using a small-scale case-study building on departure time-choice data, we illustrate the working of the developed accessibility-measures and highlight how they differ from the Logsum-approach. (C) 2011 Elsevier Ltd. All rights reserved.
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