MODELLING GOODS TRANSPORTATION ON REGIONAL BASIS IN RAJASTHAN

Abstract

Freight transportation provides place, time and quality utilities for all the commodities at production, distri-bution and consumption stages. However, very little attempts have been made to understand and solve problems associated with the freight transportation. A number of freight demand modelling techniques have been attempted in the past to study the freight travel characteri-stics and to estimate the freight demand at intra-regional, inter-regional and inter-continental levels. Review of these techniques have been made in this work and the constraint type of gravity models for several commodity groups have been developed for intra-rcgional freight demand modelling. In this study eight districts of state of Rajasthan in India are selected. The raw data for goods transport characteristics was collected through a continuous forty eight hour road-side origin-destination.surVey of 100 percent sample size. Computer programme is developed and run at DEC-2050 computer system for Attraction constrained gravity models having three different deterence functions. Seperate models are developed for the three dominating groups of commodities and also for total commodities. The model fitted well for total commodities (i.e. for aggregate level). It is revealed that three different types of deterence functions give almost identical estimates of commodity interchange.