The uncertainty and diversity of measured permeability in field have motivated scholars to come up with methods to predict the coefficient of permeability. This research tries to assess the possibility of a new method for prediction of permeability of HMA in field. In this method, the permeability of lab-compacted specimens will be applied to predict the permeability of field compacted specimens. In order to develop this method, a correlation between permeability of lab and field will be needed. This research exploits an experimental approach to derive the correlation. In this approach, three sets of cores from three different counties in Pennsylvania have been tested; these three sets represent three different aggregate property and asphalt binder. Afterward, corresponding loose HMA from the same field and date have been compacted in lab, and tested. The result of these three sets indicated that the field cores with 12.5 nominal maximum aggregate size have a reasonable relationship with corresponding lab compacted specimens. However, the two other cores with low amount of permeability do not imply a meaningful relationship with lab compacted specimens. Finally, the impact of aggregate size, gradation, thickness and air void threshold in field and lab has been evaluated.
