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Jee Eun Kang
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In the field of transportation planning and engineering, the activity-based approach continues to generate interest in terms of model development and implementation. The Household Activity Pattern Problem (HAPP), is a mathematical programming approach to travel analysis under the activity-based framework. According to HAPP, activity travel patterns are the result of a household optimization with respect to a set of space-time and resource constraints, where the objective function represents travel (dis)utility.