A framework for joint modelling of activity choice, duration, and productivity while travelling

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Title: A framework for joint modelling of activity choice, duration, and productivity while travelling
Authors: Pawlak, J
Polak, J
Sivakumar, A
Item Type: Journal Article
Abstract: Recent developments in mobile information and communication technologies (ICT), vehicle automation, and the associated debates on the implications for the operation of transport systems and for the appraisal of investment has heightened the importance of understanding how people spend travel time and how productive they are while travelling. To date, however, no approach has been proposed that incorporates the joint modelling of in-travel activity type, activity duration and productivity behaviour. To address this critical gap, we draw on a recently developed PPS framework (Pawlak et al., 2015) to develop a new joint model of activity type choice, duration and productivity. In our framework, we use copulas to provide a flexible link between a discrete choice model of activity type choice, a hazard-based model for activity duration, and a log-linear model of productivity. Our model is readily amenable to estimation, which we demonstrate using data from the 2008 UK Study of Productive Use of Rail Travel-time. We hence show how journey-, respondent-, attitude-, and ICT-related factors are related to expected in-travel time allocation to work and non-work activities, and the associated productivity. To the best of our knowledge, this is the first framework that both captures the effects of different factors on activity choice, duration and productivity, and models links between these aspects of behaviour. Furthermore, the convenient interpretation of the parameters in the form of semi-elasticities enables the comparison of effects associated with the presence of on-board facilities (e.g., workspace, connectivity) or equipment use, facilitating use of the model outputs in applied contexts.
Issue Date: 6-Nov-2017
Date of Acceptance: 23-Oct-2017
URI: http://hdl.handle.net/10044/1/52180
DOI: https://dx.doi.org/10.1016/j.trb.2017.10.010
ISSN: 0191-2615
Publisher: Elsevier
Start Page: 153
End Page: 172
Journal / Book Title: Transportation Research Part B: Methodological
Volume: 106
Copyright Statement: © 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Cisco International Ltd CIL
Funder's Grant Number: EP/I038837/1
PO No T5200023365
Keywords: 1507 Transportation And Freight Services
0102 Applied Mathematics
Logistics & Transportation
Publication Status: Published
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering

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