Trip data that records each vehicle's trip activity on the road network describes the operation of urban traffic from the individual perspective, and it 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 generating for each individual based on the historical trip data. The availability and trip data privacy protection are balanced during generation, making the synthetic dataset remains valuable and can be public. A series of experiments are done to verify the reliability of the dataset. The result shows that the synthetic data is consistent with the real data (i.e., historical data) on the aggregated level and reasonable from the individual perspective.
翻译:记录每辆车辆在公路网络上旅行活动的特里普数据,从个人的角度描述城市交通的运行情况,对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。在本文件中,我们根据历史旅行数据为每个人编制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公开。进行了一系列的实验,以核实数据集的可靠性。结果显示,合成数据符合关于总水平的真实数据(即历史数据),从个人角度看是合理的。