Pedestrian Daily Effective Circulation (PDEC) is the total number of pedestrians passing and potentially exposed to an outdoor advertising display for either 12 hours (un-illuminated; 6:00am to 6:00pm), 18 hours (illuminated; 6:00am to Midnight), or 24 hours. Pedestrian Daily Effective Circulation (PDEC) remain a valuable measure of circulation for the out-of-home (OOH) industry and is most relevant in metro markets.
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