V2I Queue Advisory/Warning Applications: Concept and Design

This project was a collaborative effort between the USDOT, and the Connected Vehicle Pooled Fund Study (CV PFS) entitled Program to Support the Development and Deployment of Connected Vehicle Applications. The TTI team performed systems engineering, developed concept of operations, system requirements, and high-level design for vehicle-to-infrastructure (V2I) queue warning systems that can be used in future deployments and testing efforts. The V2I queue warning system developed in this project utilizes data from multiple sources to quickly detect the potential formation of queues on a per-lane basis and provide timely queue warning to motorists. Data collected by typical technologies and systems (e.g., traffic sensors) deployed by infrastructure owner-operators (IOOs), queue and congestion information provided by third-party data providers (e.g., INRIX, Waze), and high-resolution vehicle trajectory data provided by connected vehicles are combined to improve the accuracy and timeliness of queue detection. IOOs can use this queue information to provide alerts and warnings to motorists approaching the back of a queue. Queue warnings may be provided through both traditional traveler information devices (e.g., dynamic message signs) and advanced information dissemination devices (e.g., in-vehicle displays).