Freeway Field Equipment is a Generic Element that represents both the existing and planned equipment distributed on and along the freeways that monitor and control traffic, as well as monitor and manage the roadway itself. Equipment may include traffic detectors, environmental sensors, highway advisory radios (HAR), dynamic message signs (DMS), toll rate signs (TRS), CCTV cameras, video image processing systems, grade crossing warning systems, reversible lane management systems, and barrier systems that control access to transportation infrastructure such as roadways, bridges, and tunnels.
Flow definitions – General definitions of the Information Flows used in the document
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