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工作，我们构建了一款数据集，该数据集收录了不同时段下各道路路段（road link）的行程车速，并附带真实城市道路路网地图。本数据集采集自中国西部的代表性特大城市——成都，其道路路网涵盖了多种城市道路路网结构类型。该数据集能够反映城市道路路段行程车速的真实变化规律与随机波动特性，可为交通、运输与物流领域内基于真实数据的决策类问题研究提供支撑。