城市核心区在城市功能的发挥中扮演着重要的角色,多核心式城市结构已成为一种重要的城市空间模式,但目前对于城市核心区识别研究却较为缺乏,快速而准确地提取城市核心区对于管理者进行精细的管理与规划有重要意义。研究提出一种基于兴...城市核心区在城市功能的发挥中扮演着重要的角色,多核心式城市结构已成为一种重要的城市空间模式,但目前对于城市核心区识别研究却较为缺乏,快速而准确地提取城市核心区对于管理者进行精细的管理与规划有重要意义。研究提出一种基于兴趣点大数据(Point of Interest,POI)的城市核心区识别方法,结果发现应用该方法成功识别了案例城市的核心区,提供了其空间范围,对于城市核心区结构也有很好的探测效果。另外,通过相关检验证明了识别结果的合理性与可靠性。与传统研究不同的是,该方法可以提取城市核心区范围,并且方法简洁。研究结果表明:这种基于POI大数据的城市核心区识别方法能准确定位城市核心区位置,为日后城市规划与城市精细管理提供有价值的空间位置参考信息。展开更多
Taking Guangzhou as a case,this paper adopted a questionnaire survey to gather first-hand data and analyzed the characteristics and influencing factors of private car travel in Chinese cities.As the research indicated...Taking Guangzhou as a case,this paper adopted a questionnaire survey to gather first-hand data and analyzed the characteristics and influencing factors of private car travel in Chinese cities.As the research indicated,trip purposes of private car travel are mainly commute and business affairs with a more flexible trip in the urban core area.And trip intensities are concentrated in a certain extent,with trip frequency being lower in the urban core area than the peripheral area.In addition,the trip time has two significant peaks occurring in the morning and afternoon,and one trough in the midday.And trip spatial distribution is mainly within commute with both residence and employment in urban area and inward commute with residence in suburban area while employment in urban area.Both kinds of commutes direct to the urban area.The study also shows that the characteristics of private car travel are principally influenced by two aspects:travelers' attributes and urban characteristics.The main travelers' social and economic attributes influenced it include the gender,education attainment,age,driving experience and per capita monthly household income.The urban characteristics influenced it mainly cover the land use pattern,public traffic facilities and spatial attributes of residential environment.展开更多
文摘城市核心区在城市功能的发挥中扮演着重要的角色,多核心式城市结构已成为一种重要的城市空间模式,但目前对于城市核心区识别研究却较为缺乏,快速而准确地提取城市核心区对于管理者进行精细的管理与规划有重要意义。研究提出一种基于兴趣点大数据(Point of Interest,POI)的城市核心区识别方法,结果发现应用该方法成功识别了案例城市的核心区,提供了其空间范围,对于城市核心区结构也有很好的探测效果。另外,通过相关检验证明了识别结果的合理性与可靠性。与传统研究不同的是,该方法可以提取城市核心区范围,并且方法简洁。研究结果表明:这种基于POI大数据的城市核心区识别方法能准确定位城市核心区位置,为日后城市规划与城市精细管理提供有价值的空间位置参考信息。
基金Under the auspices of National Natural Science Foundation of China (No 40571052,40301014)
文摘Taking Guangzhou as a case,this paper adopted a questionnaire survey to gather first-hand data and analyzed the characteristics and influencing factors of private car travel in Chinese cities.As the research indicated,trip purposes of private car travel are mainly commute and business affairs with a more flexible trip in the urban core area.And trip intensities are concentrated in a certain extent,with trip frequency being lower in the urban core area than the peripheral area.In addition,the trip time has two significant peaks occurring in the morning and afternoon,and one trough in the midday.And trip spatial distribution is mainly within commute with both residence and employment in urban area and inward commute with residence in suburban area while employment in urban area.Both kinds of commutes direct to the urban area.The study also shows that the characteristics of private car travel are principally influenced by two aspects:travelers' attributes and urban characteristics.The main travelers' social and economic attributes influenced it include the gender,education attainment,age,driving experience and per capita monthly household income.The urban characteristics influenced it mainly cover the land use pattern,public traffic facilities and spatial attributes of residential environment.
