Corridor-Wide Surveillance Using Unmanned Aircraft Systems [Policy Brief]
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2023-12-01
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Edition:Policy Brief
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Abstract:The main objective was to provide the outcome in traffic engineering terms that can be used by the TMC, the team needed to translate the traffic congestion recorded into Level of Service (LOS), and traffic density, or occupancy. The team enhanced the algorithm developed in Phase I by following a specific framework and pieces of algorithm to perform different tasks as described here:1)Training and testing of You Only Look Once (YOLO) model for object detection, which included training YOLO v4 on videos collected via the UAS in the Tampa Bay area. The model was trained on detecting vehicles of varied sizes using both the Red-Green-Blue (RGB) video and the infrared (thermal) video. The model was then tested on untrained video to establish accuracy and was tuned to detect moving vehicles in the videos.2)The algorithm was then expanded to extract traffic features from the video to establish parameters for traffic monitoring. Vehicle speed including median speed, max speed, and standard deviation of speed were calculated. Traffic density was then calculated based on the road segment available in the video.
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Main Document Checksum:urn:sha-512:c14d955543ef096e4f4834b4fe55052ed25584b4e4c0fc717b7e4d8a55074edea5ee4822bc57a9d949d4c43da563cc04cadb19ab9526fffedc60222a1365ecfb
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