基于实时路况的西安交通拥堵研究

On Xi'an traffic congestion based on real-time traffic data

通过百度地图提取西安市实时路况数据,借助Arcgis软件,运用广义G统计量、热点分析方法对西安市的交通拥堵进行研究,力图揭示其拥堵的时空分布特征。结果显示,西安市的交通拥堵呈现出明显的时空特征,拥堵的时间规律主要受工作日通勤、节假日外出等因素的影响;拥堵的空间规律主要受城市功能分区、商圈分布、路网结构等因素的影响。研究结果表明了利用实时路况数据研究城市交通拥堵时空规律的可行性。

Through extracting real-time road condition information of Xi＇an from Baidu map, this paper utilizes Getis-Ord General G and hotspot analysis to study Xi＇an traffic congestion with the help of Arcgis. The re- search purpose is revealing the spatio-temporal distribution of its congestion. The results show that Xi＇an traffic congestion has obvious spatiotemporal characteristics, in time domain, the traffic congestion exist differences because of weekday Commuting and weekend travelling, etc. And in space domain, the jamming state distri- bution is mainly affected by urban function partition, commercial circle and road network structure, etc. The study proved that it is feasible to study the urban traffic congestion using the real-time traffic data.