Ground instrumentation for Traffic Speed Deflectometer (TSD)

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ARRB’s new TSD has been upgraded to achieve ‘game changing’ fast and efficient measurements of the condition of our roads. To fully understand the information produced by the TSD, two sites will be established with embedded sensor arrays. These sensors will measure the true motion of the pavement surface when heavy vehicles travel over the test sites. With the information gained from these test sites we will be able to correlate new TSD data gathered with current data records using a falling weight deflectometer.