SPATIAL TRANSFERABILITY OF AN ORDERED RESPONSE MODEL OF TRIP GENERATION

This paper documents analysis of the spatial transferability of an ord ered response model, a type of discrete choice model which maintains t he ordinal nature in the dependent variable in situations where there are more than two responses. The analysis focuses on shopping trip gen eration in Metropolitan Toronto. The paper investigates the performanc e of a directly transferred ordered response model (without updating t he transferred coefficients) and assesses the effectiveness of a techn ique for revising the constant terms and scalars in the model by using small-sample data from the region to which the model is to be applied . The results of this spatial transferability analysis show that a dir ectly transferred ordered response model performs reasonably well in p redicting the aggregate shares in the application (new) context. Revis ing the constant terms and the scalars in the model substantially impr oves the predictive ability of the transferred model. (C) 1997 Elsevie r Science Ltd.