Using the critical path method (CPM) for evaluating allocation potential of temporary housing units

Abstract

For disaster relief to be effective, responses must be quick and adaptable to the circumstances. The critical path method is a project management technique that assists in maintaining construction project timelines and limiting delays. This study applies the sequential approach of the critical path method to the manufacturing and logistical phases of post-disaster temporary housing to reduce delays that can lead to prolonged sheltering and homelessness. A nodal analysis from the critical path reveals the attributes (manufacturing or logistical), such as door and window cutouts or cabinet installation, that can lead to delays in the actual allocation and occupation of units. The resulting critical path analysis model determines approximately 49 days are required to manufacture and allocate a modular unit design and discusses potential pathways of proactive manufacturing and fast-tracking to maintain current expected sheltering periods of 21 days for displaced populations. These diagrams and discussions can benefit decision-making personnel to determine which tasks in the temporary housing manufacturing process require prioritization to reduce timelines and consequently reduce the potential of prolonged displacement following displacement events.