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How the pavement-van measures cracks and bumps: IMU, 360 camera, LCMS
Summary
David Jones described the vehicle's sensors — an IMU for bumpiness, a 360-degree camera for imagery, and an LCMS laser to record cracks — that together produce lane-level pavement data.
David Jones described the van's sensor suite and how each part contributes to condition assessment. "What you have is you have, an IMU, which is inertial measurement unit, and it's measuring the bumpiness, what the driver feels," he said, adding a 360-degree "lady bird" camera captures the roadway visually and an LCMS does a downward laser scan of pavement defects.
Jones said the combination of sensors allows staff to capture a fuller picture than earlier, smaller collections of data and to automate detection of defects that guide OCI scoring.
