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>

道路网络中的路段行驶速度（road link travel speeds）是交通、运输与物流等多个研究领域的核心基础数据。为支撑上述领域的研究需求，我们构建了一款专属数据集，涵盖各道路路段（road link）在不同时段的行驶速度数据与真实城市路网地图。该数据集采集自中国西部具有代表性的特大城市——成都。该城市的道路网络包含多种城市路网结构类型。该数据集真实呈现了城市路段行驶速度的动态变化与随机分布特征，可为交通、运输与物流领域的真实数据驱动决策相关研究提供有力支撑。<i></i>