Institute of Transport and Logistics Studies: Recent submissions
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Sample optimality in the design of stated choice experiments
Published 2005-06-01Stated choice (SC) experiments represent the dominant data paradigm in the study of behavioral responses of individuals, households as well as other organizations, yet little is known about the sample size requirements for ...Open AccessWorking Paper -
A mixed generalized ordered response model for examining pedestrian and bicyclist injury severity level in traffic crashes
Published 2007-08-01This paper proposes an econometric structure for injury severity analysis at the level of individual accidents that recognizes the ordinal nature of the categories in which injury severity are recorded, while also allowing ...Open AccessWorking Paper -
Planning Approximations to the Length of TSP and VRP Problems
Published 2007-03-01This paper studies parsimonious, intuitive, and effective formulas to approximate the length of Traveling Salesman Problems (TSP) and Vehicle Routing Problems (VRP). Using intuition derived from continuous models and graph ...Open AccessWorking Paper -
Value chain positioning: Performance and partnerships
Published 2007-09-01The value chain is widely discussed by academics and practitioners. Among the numerous issues to be resolved one is of pressing importance; where in an industry value chain should the individual firm operate. The traditional ...Open AccessWorking Paper -
Should reference alternatives in pivot design SC surveys be treated differently?
Published 2008-04-01Analysts are increasingly making use of pivot style Stated Choice (SC) data in the estimation of choice models. These datasets often contain a reference alternative whose attributes remain invariant across replications for ...Open AccessWorking Paper