Average Annual Daily Traffic
|Database variable name||Average_annual_daily_traffic|
|Expiration date||Still active|
Average annual daily traffic (AADT).
State the AADT for the road involved in the investigation.
The average annual daily traffic (AADT) is an estimation of the number of vehicles traveling on a road during a 24-hour period. The year is divided into 103 periods and for a given road section, the traffic flow is measured during four of these periods. A period can include weekdays, weekends or a combination of both. A total AADT is then estimated from these results according to specified statistical methods. The AADT is a measure of how heavily trafficked a road is.