Traffic flow data in Beijing

  • 作成日:2021年12月21日 最終更新日:2021年12月21日
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データジャケットの題名 Traffic flow data in Beijing
データの所在・所有者 Government departments in charge of "smart city" transportation in Beijing
データ収集方法やコスト By GPS devices installed on floating cars (e.g. taxies)
データの共有について 条件により共有可(必要に応じて交渉)
データの共有について (その他を選ばれた方) Only available for non-commercial usages


データの種類 数値 時系列
データの変数(パラメーター)の変数名 vehicle speed|time|date|longitude|latitude|road width|road length|road slope gradient
データの概要説明 Being one of the biggest metropolises in China with over 20 million people, Beijing provides a variety of traffic patterns under different pressure. These patterns may also be valuable for the study of traffic optimization problem in many other cities. This dataset is aiming at describing the transportation properties of traffic flows in the central and near-suburban areas of Beijing, including the rash hours and common hours on weekdays, weekends and public holidays.
想定しているデータの分析・シミュレーションプロセス By analyzing the traffic flow data, the bottlenecks of road network can be found, optimal parameters for road properties can be calculated by macroscopic fundamental graph. The performance of this optimization can be simulated by density wave model or car-following model with the original flux of traffic in this dataset.
想定しているデータの分析・シミュレーションプロセスの結果 (データ分析結果/ツールの出力/典型例など) The list of bottleneck roads (geographical coordinates), the optimal parameters of the bottleneck roads (road width, road slope gradient, max speed limitation, etc.), the congestion time (stuck in relative low speed) on the original roads, the congestion time on the optimized roads, etc.
上記の分析・シミュレーションプロセス以外に期待する分析 Patterns of traffic that may be optimized with the same method may be found after the process of analyses and simulations. These methods may also be effective to road networks in other cities with the same pattern of traffic.


入手したいデータ/ツール A tool that can generate a heat map of each road on a real road map image by the average speed of the vehicles on that road.