Ayözen Yunus Emre, İnaç Hakan
Ministerial Advisor, Ministry of Transport and Infrastructure, Ankara, Turkey.
Investment Management & Control Department, Directorate for Strategy Development, Ministry of Transport and Infrastructure, Ankara, Turkey.
Sci Rep. 2024 Jun 15;14(1):13829. doi: 10.1038/s41598-024-64483-w.
The enhancement of flexibility, energy efficiency, and environmental friendliness constitutes a widely acknowledged trend in the development of urban infrastructure. The proliferation of various types of transportation vehicles exacerbates the complexity of traffic regulation. Intelligent transportation systems, leveraging real-time traffic status prediction technologies, such as velocity estimation, emerge as viable solutions for the efficacious management and control of urban road networks. The objective of this project is to address the complex task of increasing accuracy in predicting traffic conditions on a big scale using deep learning techniques. To accomplish the objective of the study, the historical traffic data of Paris and Istanbul within a certain timeframe were used, considering the impact of variables such as speed, traffic volume, and direction. Specifically, traffic movie clips based on 2 years of real-world data for the two cities were utilized. The movies were generated with HERE data derived from over 100 billion GPS (Global Positioning System) probe points collected from a substantial fleet of automobiles. The model presented by us, unlike the majority of previous ones, takes into account the cumulative impact of speed, flow, and direction. The developed model showed better results compared to the well-known models, in particular, in comparison with the SR-ResNet model. The pixel-wise MAE (mean absolute error) values for Paris and Istanbul were 4.299 and 3.884 respectively, compared to 4.551 and 3.993 for SR-ResNET. Thus, the created model demonstrated the possibilities for further enhancing the accuracy and efficacy of intelligent transportation systems, particularly in large urban centres, thereby facilitating heightened safety, energy efficiency, and convenience for road users. The obtained results will be useful for local policymakers responsible for infrastructure development planning, as well as for specialists and researchers in the field. Future research should investigate how to incorporate more sources of information, in particular previous information from physical traffic flow models, information about weather conditions, etc. into the deep learning framework, as well as further increasing of the throughput capacity and reducing processing time.
提升灵活性、能源效率和环境友好性是城市基础设施发展中一个广泛认可的趋势。各类运输车辆的激增加剧了交通管制的复杂性。智能交通系统利用实时交通状态预测技术,如速度估计,成为有效管理和控制城市道路网络的可行解决方案。本项目的目标是利用深度学习技术解决大规模提高交通状况预测准确性这一复杂任务。为实现该研究目标,考虑了速度、交通流量和方向等变量的影响,使用了巴黎和伊斯坦布尔在特定时间段内的历史交通数据。具体而言,利用了基于这两个城市两年真实数据的交通视频片段。这些视频是用来自超过1000亿个全球定位系统(GPS)探测点的HERE数据生成的,这些探测点是从大量汽车车队收集而来。我们提出的模型与大多数先前模型不同,考虑了速度、流量和方向的累积影响。与知名模型相比,尤其是与SR - ResNet模型相比,所开发的模型显示出更好的结果。巴黎和伊斯坦布尔的逐像素平均绝对误差(MAE)值分别为4.299和3.884,而SR - ResNET的为4.551和3.993。因此,所创建的模型展示了进一步提高智能交通系统准确性和效能的可能性,特别是在大型城市中心,从而为道路使用者提高安全性、能源效率和便利性。所获得的结果将对负责基础设施发展规划的地方政策制定者以及该领域的专家和研究人员有用。未来的研究应探讨如何将更多信息源,特别是来自物理交通流模型的先前信息、天气状况信息等纳入深度学习框架,以及进一步提高吞吐量和减少处理时间。