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The Indiana Department of Transportation (INDOT)- Accelerated Pavement Testing Facility (APTF) known as the INDOT/Purdue- APT or the “APT ” has been in operation since 1991. Several studies such as the Minimum Crushed Aggregate study (MCA), the National Pooled Fund Study (NPFS#176 Phase I) and the INDOT Warranty study were performed using the APT with different objectives in mind. However, the in-situ pavement performance was a common goal of these studies. The major objective of this paper is to summarize the results and to consolidate the conclusions that were obtained from those studies. The paper will highlight the significance of both the Hot Mix Asphalt (HMA) components and volumetric properties that were included in each study. Other factors such as the temperature, the tire pressure, and the effect of wander and their effect on HMA performance will also be discussed. An important part of this paper is a discussion of experience in developing plans for APT studies. The authors have several years of experiences with APT testing of HMA. Consideration has to be given to levels of the important factors to insure significance. Constructability to achieve the levels of important factors is an important consideration. Also, future studies will be outlined. Galal and White 3 In 1990, an Accelerated Pavement Tester (APT) was fabricated in a joint venture betwee