Entropy Model and Intercity Modal Split in the UKby Gerald R. Leake, Lect. in Civ. Engrg. and Assoc. Lect.; Inst. for Transport Studies, Univ. of Leeds, Leeds, England,
John R. Underwood, Lect.; Civ. Engrg.Dept., Dundee Coll. of Tech., Dundee, Scotland; formerly, Research Student, Dept. of Civ. Engrg., Univ. of Leeds, Leeds, England,
Serial Information: Transportation Engineering Journal of ASCE, 1976, Vol. 102, Issue 2, Pg. 215-228
Document Type: Journal Paper
Using the entropy trip distribution model of Wilson as a base, two intercity bimodal split models are developed; one with a negative exponential impedance function, the other with a negative power function. The models are calibrated and compared against rail and air domestic intercity travel data in the United Kingdom. The power function is found to give the best fit to the data. The most satisfactory model is used to predict modal share for changes in intercity travel times which have taken place and the predicted values compared with actual measured results. Additional outputs from the analysis are values of time for work and nonwork trips and the relative weighting of excess time to line-haul time as perceived by the traveler.
Subject Headings: Interurban travel | Entropy methods | Travel time | Modal split | Trip distribution | Data processing | Power transmission | Traffic models | United Kingdom | Europe
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