Annual average daily traffic

Highway 401 in Ontario, Canada, has an AADT of over 400,000 in some sections of Toronto.[1]

A traffic counter on BIA Road J-9 in the United States

Annual average daily traffic, abbreviated AADT, is a measure used primarily in transportation planning and transportation engineering. Traditionally, it is the total volume of vehicle traffic of a highway or road for a year divided by 365 days. AADT is a useful and simple measurement of how busy the road is. Newer advances from traffic data providers are now providing AADT by side of the road, by day of week and by time of day.

单词	Annual average daily traffic
释义	Annual average daily traffic 英语百科 Annual average daily traffic Annual average daily traffic, abbreviated AADT, is a measure used primarily in transportation planning and transportation engineering. Traditionally, it is the total volume of vehicle traffic of a highway or road for a year divided by 365 days. AADT is a useful and simple measurement of how busy the road is. Newer advances from traffic data providers are now providing AADT by side of the road, by day of week and by time of day.
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