STUDY OF FUTURE MODAL CHOICE IN MADRAS ADOPTING TRADE-OFF GAME

Modal choice by commuters can be considered as one of the most important factors influencing planning of transportation systems in any major urban area. Modal choice to a large extent influences the trip generation, trip distribution and trip assignment. In the past three decades, considerable work has been done to evolve various methodologies to arrive at reliable representative models to forecast future modal choice. All the methodologies followed till recently, whether aggregate or disaggregate, have been mostly using the observed travel behaviour and relating the same to various travel attributes. During the past ten years, considerable work has been done in the developed countries to carry out attitudinal studies by direct enquiry and to try to evolve some modal split models based on attitudes which would reflect stated preferences. The paper examines the use of longitudinal and panel studies for developing models for trip generation and modal split.