Author: Yu, Le
Title: Impacts of the built environment on travel behavior in urban villages : a case study of Shenzhen, China
Advisors: Chan, Hon-wan Edwin (BRE)
Degree: Ph.D.
Year: 2021
Subject: Choice of transportation
Transportation -- China -- Shenzhen (Guangdong)
Hong Kong Polytechnic University -- Dissertations
Department: Department of Building and Real Estate
Pages: xiii, 177 pages : color illustrations
Language: English
Abstract: With the increase of urban sprawl and commuting distance deriving from the job-housing separation in large cities, the amount of transportation carbon emission is sharply raising. It has become an urgent need to reduce the urban transport energy consumption and to encourage sustainable public transit. In contrast to the travel demand management measures, urban built environment plays a positive role on green travel mode promotion. Therefore, the built environment is considered as an essential method to decrease the auto dependency thereby encouraging people to choose public transit. Urban renewal provides opportunities to improve the urban transport structure during the process of built environment improvement. In turn, the urban transport improvement also accelerates the pace of urban renewal, and further optimize land use and urban layout structure. The reciprocal relationship between urban renewal and transport is applicable to the situation of renewal of urban villages in China especially. Therefore, it is necessary to clarify the impact of different elements of the built environment on travel behaviour under the background of urban villages' renewal. This thesis reviews the impacts of built environment on travel behaviour and latest topics relating to urban villages qualitatively. From the microscopic perspective of individual travel behaviour, the analytical frameworks are proposed to investigate travel behaviour in terms of public transit choice and DiDi commuting trips. In Chapter 4, this thesis focuses on the impact of the built environment of urban villages on residents' public transit choice behaviour. Basically, without considering the methodological bias of residential self-selection and spatial dependence, the built environment has shown significant effect on public transit choice behaviour for urban villages, which is quite different from that for commodity housing. Using data of residential travel survey in Shenzhen, China in 2014, the results in Chapter 4 indicate that mixed land use generates an adverse effect on public transit choice, a surprising outcome which is contrary to previous common conclusions particularly.
Considering the effect of residential self-selection, Chapter 5 develops a SEM-Mixed logit model and elaborates settings of the endogenous and exogenous variables, as well as the mediation effect. It is found that after considering the self-selection effect, the influence of density, mixed land use and transit availability on travel distance, travel time and transit mode choice in urban villages are still significant. For urban villages, transit availability matters greatest for public transit promotion. However, the negative effect of density on transit mode choice and none effect of mixed land use are unusual as previous findings. This is partly because of relatively low income, low car ownership, and less elastic travel demand of dwellers in urban villages. Considering the effect of spatial dependence, a Spatial Durbin Errors Model is established incorporating the spatial lag and spatial error in Chapter 6. Traveling information is employed from DiDi ride-sourcing company in morning and evening peaks as ride-sourcing commuting trips in Shenzhen from urban villages' areas and workplaces, and built environmental variables were scaled within travel analysis zones (TAZs). Results show that impacts of built environment on ride-sourcing commuting are different between job-housing locations with more influential factors in residential locations (urban villages), while larger influential magnitude in working locations where the magnitude is more than twice than that of residential locations. Besides, it is more effective to hinder ride-sourcing commuting and promote green traveling modes by increasing bus stops due to its spatial spill over effect. The findings provide some insights into transit-oriented urban renewal. When transforming urban villages, emphasis should be put on enhancement of transit availability, and the mixed land use could be put in the last consideration with limited time and funds. This thesis contributes to the knowledge by addressing a special type of neighbourhood in order to narrow down the research gap in this domain. The findings help to suggest effective measures to satisfy public transit demand efficiently and also provide a transit-oriented perspective for urban regeneration.
Rights: All rights reserved
Access: open access

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