Delivery Reliability as Operational Value in Affordable Housing:
A Critical Path Analysis of a Type 36 House Project in Samarinda
Keywords:
affordable housing delivery, critical path method, operational efficiency, project scheduling, lead time reductionAbstract
Affordable housing competes not only on price but also on dependable handover performance. However, many Critical Path Method (CPM) studies on small housing projects remain framed as technical scheduling exercises and do not clearly show the precedence logic needed for replication. This study examines a Type 36 house project in Samarinda as a case of project-based housing delivery. Using field observation, interviews with the project manager, and project schedule records, the study reconstructs a package-level CPM network with explicit predecessors, forward and backward pass results, slack values, and an accelerated scenario. The documented managerial schedule shows a normal completion horizon of 180 days. Under the accelerated scenario, the elapsed project time can be reduced to 123 days, generating a saving of 57 days or 31.7 percent. The revised CPM presentation shows that the critical structure is concentrated in preparatory work, earthworks, concrete work, wall work, the roof-ceiling sequence, sanitation coordination, and final electrical work, while floor work, frame installation, and locking activities carry limited float. The contribution of the study is threefold. First, it positions schedule control as a delivery-reliability issue in affordable housing operations. Second, it provides a more transparent CPM presentation than many local housing case studies. Third, it offers practical guidance for managers in prioritizing supervision and resource coordination. The study does not measure customer satisfaction directly; therefore, its claim is limited to time-efficiency analysis and delivery-reliability support.References
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