The FREQ8PL freeway simulation model was used to aid in the evaluation of the feasibility of a proposed exclusive bus-high-occupancy-vehicle priority lane treatment on New Jersey Route 495 between the New Jersey Turnpike and the Lincoln Tunnel. The input data, assumptions, and usefulness of the model in assessing impacts of alternative treatments are described. The model was used as an aid in the evaluation of three possible configurations of an exclusive lane. The simulation results indicated the importance of maximum utilization of bottleneck sections. They also indicated the importance of beginning the priority lane before the start of queues of nonpriority vehicles. The simulations revealed a significant limitation of the FREQ8PL model: it cannot account for reduced processing capability at on ramps blocked by standing mainline queues. To remedy this, an external spreadsheet-based procedure for adjusting ramp volumes was developed. This external procedure was also needed to supplement the queue length and travel time information reported by FREQ8PL to obtain estimates of queue lengths and delay times on blocked ramps. Probable shifts in route of travel in response to the priority lane implementation were also estimated external to the FREQ8PL model, because of limitations in the model's ability to estimate such shifts. A lower level-of-service F speed-flow curve than that presented in the current Highway Capacity Manual was developed to replicate the dense, slow-moving queues observed on this freeway during peak periods. The spreadsheet program was also used to create several useful graphics displaying projected travel times and queue lengths.