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Rilevazione oraria degli autoveicoli tramite spire e loro posizione geografica. \n\n\nSi evidenzia inoltre che il codice spira pu\u00f2 cambiare nel tempo, pertanto \u00e8 possibile trovare nella stessa posizione geografica pi\u00f9 elementi sovrapposti ma che rappresentano la stessa spira. \n\nPer esaminare i dati di traffico di una o pi\u00f9 spire si faccia riferimento al codice id_uni del dataset: valore uguale di codice \"id_uni\" indica la stessa spira che ha cambiato il valore \"codice spira\" nel tempo e sar\u00e0 contraddistinta da un valore diverso di \"livello\" (1, 2, 3, ecc.). \n\nI dati del traffico per fascia oraria sono caratterizzati da un parametro definito accuratezza che tiene conto dell'eventuale malfunzionamento delle spire e quindi della valutazione errata del traffico rilevato. Per maggiori informazioni si veda il\u00a0relativo dataset dell'accuratezza relativo all'anno 2021
Si prenda come dato identificativo unico della stazione spira il campo\u00a0ID_univoco_stazione_spira
\n\n
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