Research On The Impact Of Built Environment On Network OD Passenger Flow Based On Combined Station Areas

Continued rapid economic growth and urbanisation has led to urban sprawl and increasing traffic congestion in cities.It is imperative to prioritise the development of metros and other public transport to promote optimised urban structure,intensive and compact urban development and a green transport-led built environment.network OD passenger flow is an important indicator of the spatial and temporal patterns of urban residents’ travel,and better reflects the spatial linkages between different station surroundings built environment factors,which will be explored in this thesis to better understand how the built environment at origin and destination affects residents’ travel behaviour in different spatial and temporal dimensions.This study uses an extended node-place-linkage model to construct a metro station domain built environment indicator system,which provides a solution for the convertible calculation of the 5D principle and proposes its calculation method based on geographical data.Firstly,based on the requirements of integrated regional planning,individual metro station areas are combined in two dimensions: spatial association and temporal pattern of passenger flow;secondly,based on the idea of locational entropy index and trade complementarity index,the functional complementarity index of land use is constructed;finally,the built environment factors of the combined station areas and their interaction on the network OD at different times are investigated in terms of factor detection and interaction detection using geographic probes.Finally,the impact of the built environment factors and their interaction on the network OD flows at different times is investigated using geographic probes.The case study of Xi’an shows that the spatial distribution of different factors in the built environment is significantly spatially heterogeneous,and the geodetector is able to characterise the spatial heterogeneity of the dependence of passenger flows on the above-mentioned characteristics and the scale of their influence,and its estimation results are more reliable.There are significant regional differences in the influence of the built environment on the morning and evening peak OD passenger flows.The spatial non-smoothness of the relationship suggests that different development strategies should be adopted when designing different station domains.For example,for stations in suburban areas,development strategies that focus on scale and intensity are needed,while stations in central cities are less likely to improve passenger flows by increasing scale or intensity and should focus more on quality.This thesis hopes that by studying the mechanism of the built environment’s influence on the OD passenger flow of metro networks,urban policy makers and transport planners will pay more attention to the built environment’s influence on urban metros,seize opportunities to prioritise the development of public transport and optimise the urban structure at the right time,and guide urban development and construction in a rational manner to plan and manage urban metros properly.At the same time,the research results on the relationship between the built environment and metro passenger flow in China will be enriched to guide cities to carry out reasonable land development and renewal,regulate urban metro passenger flow in a targeted manner,and expand the attractiveness of urban metro.