Annual Average Daily Traffic or AADT is estimated as the total volume counted over one year divided by the number of days in the year.
Traffic Engineering Center of the Metro Manila Development Authority (MMDA) conducts a yearly volume count (AADT) for the major thoroughfares in Metro Manila. The latest data as of March 2010 is that of year 2008 study. The TOP 10 MOST HEAVILY TRAVELED CORRIDORS are:
2) Quezon Ave. / Commonwealth
5) Roxas Blvd.
6) Marcos Highway
7) Magsaysay Blvd. / Aurora Blvd.
8) A. H. Lacson / Pres. Quirino
9) Ortigas Ave.
10) Araneta Ave.