Urban link travel speed dataset from a megacity road network

Link travel speeds in road networks are fundamental data in many research areas of traffic, transportation, and logistics. To support the research in these areas, we develop a dataset, containing the travel speeds on each road link and in different time periods together with the real road network map. The dataset is collected from a representative megacity in Western China, Chengdu. The road network of this city involves different urban road network structures. The dataset shows the realistic variations and randomness of urban link travel speeds. This enables the research of real data-driven decision-making problems in traffic, transportation and logistics areas.<i></i>

道路网络中的道路路段（road link）行驶速度是交通、运输与物流诸多研究领域的基础核心数据。为支撑上述领域的研究需求，我们构建了一款数据集，涵盖各道路路段在不同时段的行驶速度，并附带真实道路网络地图。该数据集采集自中国西部的代表性特大城市成都，其道路网络包含多样化的城市路网结构。该数据集能够体现城市道路路段行驶速度的真实变化特性与随机分布特征，可为交通、运输及物流领域开展基于真实数据驱动的决策问题研究提供有力支撑。