HOT lanes are HOV lanes that permit solo-drivers to use them with a charge. Such facilities can promote carpool use while not wasting lane capacity if the lane is underutilized by carpoolers, and provide a revenue stream to the HOT lane operators. Most of the HOT lane facilities are single-lane facilities that either has too little spare capacity for solo-drivers, or plagued by moving bottlenecks created by slower drivers or the friction between fast moving HOT lanes traffic and slow moving regular lanes traffic. In this research, we propose a new design of HOT lanes that 1) comprises a minimum of two lanes, 2) is priced to maintain capacity flow, and 3) benefits both carpoolers and regular lane travelers. We will select a section of a freeway with existing carpool lanes, convert the carpool lane to HOT lanes with the new design, and compare the performance of the two systems under existing demand conditions and reasonable assumptions of drivers' value of time, carpooling pairing cost, and traffic's tendency to equilibrate over generalized travel cost.