Department of Public Works and Highways(DPWH)

Hi! We would like to better understand how you compute Annual Average Daily Traffic (AADT) and Percent Heavies. Specifically, we would like to inquire about the methodology used for traffic counts, including: -the process of collecting and analyzing traffic data for AADT -the classification of vehicle types and how percent heavies are computed -any standard formulas or adjustment factors applied in the computation We aim to ensure that we correctly interpret and apply traffic data in our study. If there are official references, guidelines, or reports that explain these computations, we would greatly appreciate your assistance in accessing them. Thank you.