Development of Stop Generation and Tour Formation Models for the Analysis of Travel/activity Behavior
This research develops a comprehensive structure for the generation of activity and travel pattern structures that are conceptualized as comprising three main blocks. The first block describes household subsistence needs and mobility decisions, which are long-run in nature. The second and third blocks consider on short-range decisions including the generation of maintenance stops, the allocation of stops and autos among household members and the generation of individual daily travel/activity patterns including number of tours, assignment of stops to tours, and the selection of locations for each stop and travel mode(s) for tours. This study focuses on these short-run decisions and decomposes these decisions into a two-stage structure. The first stage, the stop generation and stop/auto allocation models, consists of the choices of the number of household maintenance stops and the allocation of stops and autos to household members. The second stage, the tour formation model, includes the choices of the number of tours and the assignment of stops to tours for each individual, conditional on the choices in the first stage. The two stages are linked by including the expected value of the second stage decisions into the first stage choices.
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accessibility measures activity and travel activity participation activity scheduling activity-based allocation of stops altematives analysis approach assigned to male assigned to worker assignment of stops autos among household children and stops choice Constants Choice Structure Coefﬁcient t-value conceptual structure developed discrete choice employment status estimation results Expected utility expected value ﬁrst and second ﬁrst stage model household members household subsistence needs individual and household integrated model system Kitamura Koppelman Likelihood ratio test Log-likelihood At convergence logsum parameter maintenance activity maintenance stops mode and destination mode choice nested logit model Nested Structure NL model number of maintenance Number of Stops number of tours number of vehicles number of workers Presence of children Recker second stage decisions second stage models signiﬁcant signiﬁcantly different socio-demographic stops and autos Stops assigned stops to tours Table tour formation model tour pattern Transportation Research travel behavior travel demand models travel pattems trip wife’s travel zero