Abstract
This paper discusses the methodological shortages in measurements of motorized urban mobility subsequent to a type of systematic literature review. In this sense, the research questions and the related methodologies of such studies have been criticized. According to the preliminary indications, firstly, it has been observed that in almost all these researches, the research question, which investigates the marginal effect of travel time on Vehicle Miles Traveled (VMT), has been adopted. Secondly, it has been asserted that such types of researches have not been able to isolate the generative part and redistributive part of the induced travel demand measurements up to now. Unlike any previous researches, dealing with the marginal effect of travel time on Vehicle Miles Traveled (VMT), this study firstly proposes a methodological focus specifically on the interrelation between the travel times of the individuals and the number of trips they exhibit in a day. For such a research question, the newest econometric model, namely, Generalized Simultaneous Equations Model (GSEM Path Analysis) will be convenient model structure, which refers to methodological contribution of this study for such similar future studies. The methodological proposal of this paper will be able to be integrated into a trip generation model, and will also be able to be used to assess the performance of any transportation project reference the discussions taking travel demand management policies into account.
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