Data for Official Statistics Marco Puts, Piet Daas, Martijn - - PowerPoint PPT Presentation
High Frequency Road Sensor Data for Official Statistics Marco Puts, Piet Daas, Martijn Tennekes Road sensors Road sensor data Passing vehicle counts for each minute (24/7) at about 60.000 sensors in the Netherlands Types of sensors:
– Passing vehicle counts for each minute (24/7) at about 60.000 sensors in the Netherlands – Types of sensors: ‐ Induction loop ‐ Camera ‐ Bluetooth – Length categories (e.g. small, medium, long vehicles) – Large volume: approx. 230 mln records/day
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Clean Transform & Select Aggregate Frame
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Qi Qo Compare
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Update
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Prediction
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Missing Data
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Smoothing
Time [minutes] Vehicle count
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