This study involves an investigation of factors that contribute to transverse cracking in jointed concrete pavements, (JCP). A primary objective is to understand how concrete aggregate type, pavement support conditions, shoulder type, joint spacing and crack width affect the load transfer efficiency (LTE) and shear capacity of transverse cracks over time and traffic. These latter parameters are indicators of the performance of such cracks. Development of relationships to predict loss in shear capacity (and other critical parameters) of transverse cracks due to traffic loads is another aim of this study. These relationships can be used as a guide by MDOT when various rehabilitation and/or reconstruction alternatives are being considered and also in the general life-cycle planning aspect of their pavement designs. It is also the intent of this study to provide MDOT with recommendations concerning design parameters which would aid in reducing the number of transverse cracks in JCPs.