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（road link）行程车速，是交通、运输与物流诸多研究领域的基础数据。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程车速，以及真实的道路网络地图。本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。本数据集完整呈现了城市路段行程车速的真实变化特征与随机性规律，可为交通、运输及物流领域内基于真实数据驱动的决策问题研究提供有力支撑。