Abstract
The relationship between built environment and travel behavior has long been studied in geography,transportation and city planning.There has been a large body of such researches in western countries from macro and micro perspectives,using different methods such as simulation,description and modeling.Relatively,in China most such researches have centered on trip-based analysis,no matter from aggregation level or individual level,paying little attention to tour-based analysis.In addition,the travel decision-making process of residents has rarely been considered either.This paper attempts to construct the concept model of tour-based spatio-temporal decision-making of travel behavior and explore its residential differentiation on workdays in Beijing city,by using nested logit model with the data of travel diary obtained in 2007.Moreover,it attempts to discuss the relationship between activity and mobility.The results first of all show that residential neighborhood has an effect on the tour type decision-making,but the effect varies with the change of travel purpose.For example,if it is a work tour,its residential differentiation will be significant;but if it is a non-work tour,it will be indistinct.This may be closely related with Chinese unique suburbanization.Secondly,the start time decision-making is mainly affected by the activity type,which implies that there is a strong tie between activity and mobility.But,anyhow,the residential differentiation of start time decision-making is not significant.Thirdly,the travel distance and mode choice is distinct in different neighborhoods,that is to say the residential differentiation of spatial decision-making is significant.On the whole,the travel distance of Danwei residents is comparatively short,and the mode choice is mainly non-motor vehicle.In contrast,the travel distance of residents in commercial housing community and policy-oriented housing community is much longer,and the mode choice is mainly motor vehicle,with car in the former and public transport in the latter.Therefore,the travel behavior of Danwei residents is to some extent low carbon while the travel of policy-oriented housing community residents is long and dependent on public transport.We should pay more attention to these unique neighborhoods in China.
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