This thesis seeks to ascertain whether or not a chosen simulation software platform, the VISSIM simulation platform, using creative modeling methodologies for prohibiting specified user classes from using the managed lanes and ensuring realistic transitioning and weaving behavior between lanes and at managed lane access points, can provide a suitable framework for modeling and analyzing traffic operations in freeways with nonbarrier separated managed lanes. An additional goal of this thesis is to gain insight into the potential benefits in terms of performance of proposed HOT lane facility designs developed for the State of Maryland. To accomplish this, calibration of model parameters was required. The experimental design associated with the calibration took advantage of findings from results of preliminary sensitivity tests, results of numerical experiments conceived using factorial design with the intention of assessing parameter interactions, review of related literature and advice from PTV, Inc. experts.