Field PerformanceThe field performance of both the HMA and SMA sections wasinvestigated using both the WSPMS and visual field inspections.The WSPMS uses three indexes to characterize the performanceof a pavement: (1) pavement structural condition (PSC) is usedto quantify the extent of cracking; (2) pavement rutting condition(PRC) is used to quantify the extent of rutting; and (3) pavementprofile condition (PPC) is used to quantify roughness (WAPA2010). In addition, the conditions of these pavements also werevisually evaluated based on site visits.Laboratory ExperimentsThe SMA and HMA of these pavements were characterized basedon tests of field cores in the laboratory. Field cores were collected inlate 2014 and early 2015 to compare the mixture performance ofthe SMA and HMA (nonpatched areas) in the laboratory. The coreswere extracted from between the wheel-paths of the outside travelinglane. The collected cores were subjected to mixture testing,including studded tire wear resistance tests, indirect tensile (IDT)dynamic modulus tests, creep compliance tests, and IDT fracturetests at intermediate and low temperatures. The asphalt binder wasextracted and recovered, and was subjected to performance gradingtests, multiple stress creep and recovery (MSCR) tests, and monotonictests.