This work demonstrates a new capability in roadway control: Speed-adaptive, infrastructure-linked connected and automated vehicles. We develop and deploy a lightly modified vehicle that is able to dynamically adjust the vehicle speed in response to posted variable speed limit messages generated by the infrastructure using LTE connectivity. This work describes the open source hardware and software platform that enables integration between infrastructure-based variable posted speed limits, and existing vehicle platforms for automated control. The vehicle is deployed in heavy morning traffic on I-24 in Nashville, TN. The control vehicle follows the posted variable speed limits, resulting in as much as a 25% reduction in speed variability compared to a human-piloted vehicle in the same traffic stream.

翻译：本工作展示了道路控制领域的一项新能力：速度自适应、基础设施互联的网联自动驾驶车辆。我们开发并部署了一辆经轻度改装的车辆，该车辆能够利用LTE连接，动态调整车速以响应基础设施生成的可变限速信息。本文描述了实现基础设施可变限速与现有车辆自动控制平台集成的开源硬件与软件平台。该车辆在美国田纳西州纳什维尔市I-24高速公路早高峰车流中进行了实际部署。实验表明，该控制车辆能遵循可变限速指令行驶，与同一车流中人类驾驶的车辆相比，车速变异性最多降低了25%。