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INFERRING REGIONAL STRUCTURE FROM PARTIAL TRANSPORTATION FLOW DATA
Author(s) -
Thompson Gregory L.
Publication year - 1987
Publication title -
papers in regional science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.937
H-Index - 64
eISSN - 1435-5957
pISSN - 1056-8190
DOI - 10.1111/j.1435-5597.1987.tb01059.x
Subject(s) - computer science , flow (mathematics) , trip generation , flow network , traffic flow (computer networking) , econometrics , gravity model of trade , transport engineering , mathematical optimization , economics , mathematics , engineering , geometry , computer security , trips architecture , international trade
This paper modifies a doubly‐constrained gravity model for use with incomplete, intercity flow data in a region where marginal trip totals are unknown. The model contains a new specification for the spatial separation term and uses dummy variables for balancing and trip‐generation terms. From the data it infers regional structure in the form of trip‐production and trip‐altraction potentials. It also reveals demand elasticity with respect to variables describing the transportation system. The model is estimated with its uses are illustrated with 1933 rail‐passenger traffic flows.