The trip data that records each vehicle's trip behavior on the road network describes the operation of urban traffic from the perspective of individuals and is extremely valuable for transportation research. However, restricted by data privacy, the trip data of individual-level cannot be opened for all researchers, while the need for it is very urgent. In this paper, we produce a city-scale synthetic individual-level trip data by regenerating for all individuals based on their historical trip data. The availability and trip data privacy protection are balanced during generation, making the synthetic dataset remains valuable and can be opened. A series of experiments were done to verify the reliability of the dataset. The result shows that the synthetic data is consistent with the real data at the aggregated level. Further, the trip behaviors of individuals indicated by the trip data from the individual perspective are reasonable.
翻译:记录每辆车在公路网络上旅行行为的旅行数据从个人的角度描述了城市交通的运行情况,对于运输研究来说极为宝贵,然而,由于数据隐私的限制,无法向所有研究人员开放个人一级的旅行数据,尽管对这些数据的需求非常迫切。在本文中,我们根据所有个人的历史旅行数据,为所有个人重新生成了城市规模的合成个人一级旅行数据。在生成期间,可利用性和旅行数据隐私保护是平衡的,使合成数据集仍然具有价值并可打开。进行了一系列的实验,以核实数据集的可靠性。结果显示,合成数据与总体一级的真实数据是一致的。此外,从个人角度看,旅行数据显示的个人旅行行为是合理的。