School of Computing and Information Technology, University of Wollongong, Wollongong, NSW 2522, Australia.
School of Information and Engineering, Lanzhou University, Lanzhou 730000, China.
Sensors (Basel). 2020 Jun 12;20(12):3354. doi: 10.3390/s20123354.
Travel time prediction is critical for advanced traveler information systems (ATISs), which provides valuable information for enhancing the efficiency and effectiveness of the urban transportation systems. However, in the area of bus trips, existing studies have focused on directly using the structured data to predict travel time for a single bus trip. For state-of-the-art public transportation information systems, a bus journey generally has multiple bus trips. Additionally, due to the lack of study on data fusion, it is even inadequate for the development of underlying intelligent transportation systems. In this paper, we propose a novel framework for a hybrid data-driven travel time prediction model for bus journeys based on open data. We explore a convolutional long short-term memory (ConvLSTM) model with a self-attention mechanism that accurately predicts the running time of each segment of the trips and the waiting time at each station. The model is more robust to capture long-range dependence in time series data as well
出行时间预测对于先进的出行者信息系统(ATIS)至关重要,它为提高城市交通系统的效率和效果提供了有价值的信息。然而,在公交车出行领域,现有研究侧重于直接使用结构化数据来预测单次公交车出行的出行时间。对于最先进的公共交通信息系统,一次公交车行程通常包含多次公交车行程。此外,由于缺乏对数据融合的研究,这甚至不足以开发基础智能交通系统。在本文中,我们提出了一种基于开放数据的公交车行程混合驱动的出行时间预测模型的新框架。我们探索了一种具有自注意力机制的卷积长短期记忆(ConvLSTM)模型,该模型可以准确预测行程中每个路段的运行时间和每个站点的等待时间。该模型更能捕捉时间序列数据中的长期依赖关系