基于北京公交刷卡數(shù)據(jù)和興趣點的功能區(qū)識別
發(fā)布時間:2018-01-14 22:22
本文關(guān)鍵詞:基于北京公交刷卡數(shù)據(jù)和興趣點的功能區(qū)識別 出處:《城市規(guī)劃》2016年06期 論文類型:期刊論文
更多相關(guān)文章: 公交IC卡刷卡數(shù)據(jù) 興趣點 出行行為 功能區(qū)識別 北京
【摘要】:城市在其發(fā)展過程中逐漸形成居住區(qū)、工業(yè)區(qū)和商業(yè)區(qū)等不同的功能區(qū)。識別這些功能區(qū)并理解其分布特征,對于把握城市結(jié)構(gòu)以及制定和使用科學(xué)合理的規(guī)劃具有重要作用。本研究基于2008年4月北京市連續(xù)一周的7797余萬條公交IC卡刷卡數(shù)據(jù),將其轉(zhuǎn)換為每個公交站臺流量的二維時間序列數(shù)據(jù),結(jié)合居民日常出行行為研究,利用數(shù)據(jù)挖掘技術(shù),構(gòu)建了基于公交刷卡數(shù)據(jù)和興趣點的城市功能區(qū)識別模型,并將識別結(jié)果在交通分析小區(qū)尺度上匯總。研究結(jié)果顯示,利用城市功能區(qū)識別模型,通過冗余數(shù)據(jù)的篩除和特征的創(chuàng)建實現(xiàn)對數(shù)據(jù)的有效降維,并選用期望最大化算法對處理后的數(shù)據(jù)進行聚類分析,結(jié)合居民日常出行相關(guān)特征和興趣點分布數(shù)據(jù)對聚類結(jié)果進行詮釋,可以快速有效地識別出與北京市土地利用現(xiàn)狀地圖具有一定匹配度的北京市各功能區(qū)。本研究的方法可以輔助規(guī)劃人員和公眾有效識別和理解復(fù)雜的城市空間結(jié)構(gòu),對城市地理及規(guī)劃研究具有重要的理論和實踐價值。
[Abstract]:City residential area gradually formed in the process of its development, industrial and commercial areas of different functional areas. Identification of these functional areas and understand its distribution characteristics, plays an important role in the grasp of the city structure and develop and use scientific and rational planning. This research is based on the April 2008 Beijing city for a week to more than 7797 bus IC card the data, convert it to a two-dimensional time series data of each bus station flow, combined with the study of residents' daily travel behavior, using data mining technology, construction of the bus card data and points of interest of the city function region recognition model based on the recognition results and summary plot scale in traffic analysis. The results showed that the recognition of city the function model by creating redundant data screening and feature effectively reduces the dimensionality of the data, and using the expectation maximization algorithm to deal with the number of According to clustering analysis, interpretation of the clustering results with the residents daily travel related features and points of interest distribution data, can quickly and effectively identify with Beijing city land utilization map has a certain degree of matching in different function area of Beijing city. The city spatial structure of this research method can help planners and effective public recognition and understanding the complex, which has important theoretical and practical value to study geography and city planning.
【作者單位】: 浙江大學(xué)建筑工程學(xué)院;浙江大學(xué)環(huán)境與資源學(xué)院;清華大學(xué)建筑學(xué)院;
【分類號】:TU984.113
【正文快照】: 城市是人類社會發(fā)展到一定階段的產(chǎn)物,是一個開放的復(fù)雜系統(tǒng)。城市中存在著多種結(jié)構(gòu),包括空間結(jié)構(gòu)、社會結(jié)構(gòu)、文化結(jié)構(gòu)、經(jīng)濟結(jié)構(gòu)、人口結(jié)構(gòu)和功能結(jié)構(gòu)等。其中,城市空間結(jié)構(gòu)的研究是以往城市地理學(xué)及城市規(guī)劃學(xué)研究城市空間的核心內(nèi)容之一[1]。不論從物質(zhì)層面還是社會層面,
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