ESTIMATING THE DEMAND FOR INTERCITY TRAVEL: ECONOMIC-THEORETICAL PERSPECTIVES ON COMMON MODELS AND A NEW APPROACH TO THE ESTIMATION OF DEMAND RELATIONSHIPS

摘要: This dissertation deals with the estimation of intercity travel demand. The purpose is to discuss derivations and characteristics existing models, derive a demand model based on microeconomic theory estimate parameters in order gain information important transport system. proposed this study general assumption that can be derived from for visits other cities. As people living different parts country experience prices or "generalised costs" cities, it possible functions each city use cross-sectional data, which normally not utilities. From these functions, separate relations derived. Necessary conditions concerning various elasticities are formulated their consequences mathematical specification discussed. Of particular interest those link together levels. In specify cost function advance, Box-Cox formulation used. result determines total number trips made city, as well distribution among destinations modes. A simplified version model, including modes, estimated Swedish data period 1990-1994. Estimations separately business private trips. Elasticities found lie between -0,3 (private trips) -0,5 (business trips). (A)