Accommodating taste heterogeneity and desired substitution pattern in exit choices of pedestrian crowd evacuees using a mixed nested logit model

Abstract

Mixed logit has been recognised and widely practised by researchers as a highly flexible modelling tool that can address the main shortcomings of the standard logit. Despite the potential to be generalised, the random-coefficient modelling has rarely been integrated with more advanced GEV-type models, possibly due to the unavailability of such estimation options in most econometric software. This particular generalisation has been recommended by a number of econometricians for analysing choice problems in which capturing taste variation and specific non-IIA patterns of substitution are both of modeller's concern. This way, the analyst will be able to limit the number of explanatory variables..