Hub siaashing is a knowledge-based system that recommends contingency plans for American Airlines System Operations Control (SOC) during inclement weather or other airport disruptions where severe schedule reductions must be made. The system evaluates the current situation to determine flight cancellation
overfly candidates that will provide relief at the hub airport with minimal impact on systemwide operations. hub siaashing provides an expedient method for reducing the schedule by locating
ranking all possible candidate plans with explanations for these suggestions.