Accession Number : AD0779140

Title :   Extremal Approaches to Estimating Spatial Interaction.

Descriptive Note : Research rept.,

Corporate Author : TEXAS UNIV AUSTIN CENTER FOR CYBERNETIC STUDIES

Personal Author(s) : Phillips,Fred ; White,Gerald M.

Report Date : APR 1974

Pagination or Media Count : 33

Abstract : Two recent theoretical approaches (that of Charnes, Raike, and Bettinger (1972) and that of A. G. Wilson (1967)) to the gravity model of spatial interaction are examined with emphasis on the dissimilar physical and statistical theories from which they were respectively deprived. Formal relationships between the two methods are demonstrated. The two approaches jointly indicate a general method of generating new hypotheses of gravity flows. This method is discussed and evaluated, and some questions of theory comparability are explored. Comments on some of the computational features of each of the two models conclude the paper. (Author)

Descriptors :   *Mathematical programming, *Statistical analysis, Mathematical models, Estimates, Traffic, Gravity, Statistical mechanics, Information theory

Subject Categories : Operations Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE