ITLS Working Papers 2013: Recent submissions
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A model for the simultaneous inference of attribute nonattendance and taste heterogeneity
Published 2013-03-01An extensive literature has recognised that when travel choices are made, only a subset of the attributes of the choice alternatives may be considered or attended to by each decision maker. This paper introduces the random ...Open AccessWorking Paper -
Confidence intervals of willingness-‐to-‐pay for random coefficient logit models
Published 2013-01-01Random coefficient logit (RCL) models containing random parameters are increasingly used for modelling travel choices. Willingness-to-pay (WTP) measures, such as the value of travel time savings (VTTS) are, in the case of ...Open AccessWorking Paper -
Direct and cross elasticities for freight distribution access charges
Published 2013-02-01The interest in reform of road user charges for freight distribution in many countries continues unabated, linked to a desire to improve economic efficiency as well as recognition of the declining revenue base from traditional ...Open AccessWorking Paper -
Contractual approach to optimising risk sharing: A quantitative study of the multidimensional nature of risk in private provision of road infrastructure
Published 2013-04-01In 2009 and 2010, we conducted an international survey to identify the extent to which risk-sharing in tollroad projects procured under the public-private-partnership (PPP) method and the structures of PPP concession ...Open AccessWorking Paper -
Comparing two processing routines for GPS traces: Lessons learnt
Published 2013-09-01This paper describes what may be one of the first side-by-side tests of two alternative software products for processing GPS traces into trips, and discusses some lessons learnt from the comparisons. For GPS to be useful ...Open AccessWorking Paper