The Interstate-24 MObility Technology Interstate Observation Network (I-24 MOTION) is a new instrument for traffic science located near Nashville, Tennessee. I-24 MOTION consists of 276 pole-mounted high-resolution traffic cameras that provide seamless coverage of approximately 4.2 miles I-24, a 4-5 lane (each direction) freeway with frequently observed congestion. The cameras are connected via fiber optic network to a compute facility where vehicle trajectories are extracted from the video imagery using computer vision techniques. Approximately 230 million vehicle miles of travel occur within I-24 MOTION annually. The main output of the instrument are vehicle trajectory datasets that contain the position of each vehicle on the freeway, as well as other supplementary information vehicle dimensions and class. This article describes the design and creation of the instrument, and provides the first publicly available datasets generated from the instrument. The datasets published with this article contains at least 4 hours of vehicle trajectory data for each of 10 days. As the system continues to mature, all trajectory data will be made publicly available at i24motion.org/data.

翻译：州际24号移动技术观测网络（I-24 MOTION）是位于田纳西州纳什维尔市附近的新型交通科学观测仪器。该系统由276个高分辨率交通摄像头构成，沿约4.2英里长的I-24高速公路（双向4-5车道，常发性拥堵路段）实现无缝覆盖。摄像头通过光纤网络连接至计算设施，利用计算机视觉技术从视频影像中提取车辆轨迹。该仪器每年监测约2.3亿车英里行驶里程。主要输出成果为包含高速公路每辆车位置信息及车辆尺寸、类型等辅助数据集的车辆轨迹数据。本文详细阐述了该仪器的设计与构建过程，并首次公开了其生成的标准化数据集。本文附发数据集包含10天中每天至少4小时的车辆轨迹记录。随着系统持续完善，所有轨迹数据将在i24motion.org/data平台公开发布。