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Ammar, M A (2013) LOB and CPM Integrated Method for Scheduling Repetitive Projects. Journal of Construction Engineering and Management, 139(01), 44–50.
- Type: Journal Article
- Keywords: Scheduling; Construction management; Project management; Repetitive projects; Scheduling; CPM; LOB; Overlapping networks; Work continuity;
- ISBN/ISSN: 0733-9364
- URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0000569
- Abstract:
Repetitive projects require schedules that ensure the uninterrupted usage of resources from a unit to similar units in a repetitive activity while maintaining logical dependency constraints. The critical path method (CPM) is the most widely used and accepted planning and scheduling method for traditional (nonrepetitive) projects. However, CPM does not suit the planning and scheduling needs of repetitive projects. Consequently, resource-driven techniques, such as line of balance (LOB), have been used to schedule repetitive projects that ensure work continuity. LOB is primarily a graphical technique that lacks the analytical qualities of CPM scheduling. A need for an analytical technique fulfilling characteristics of repetitive projects has been reported in the literature. Few attempts have been made to combine the benefits of CPM and LOB techniques in planning and scheduling of repetitive projects. In this paper, an integrated CPM and LOB model has been developed to schedule repetitive projects in an easy nongraphical manner, considering both logic dependency and resource continuity constraints. Overlapping activities of a single typical unit are used to model duration and logical relationships of repetitive activities. The proposed model essentially consists of four steps. In the first step, basic LOB calculations are performed to ensure resource continuity. Activity duration along all repetitive units is calculated in the second step. In the third step, overlapping activities are used to model logical relationships between consecutive activities. Next, CPM time analysis is performed to specify activities’ timings and floats and project completion time. An example application is presented to illustrate implementation and features of the proposed model.
Bynum, P, Issa, R R A and Olbina, S (2013) Building Information Modeling in Support of Sustainable Design and Construction. Journal of Construction Engineering and Management, 139(01), 24–34.
Cheung, S O and Pang, K H Y (2013) Anatomy of Construction Disputes. Journal of Construction Engineering and Management, 139(01), 15–23.
Cho, K and Hastak, M (2013) Time and Cost–Optimized Decision Support Model for Fast-Track Projects. Journal of Construction Engineering and Management, 139(01), 90–101.
Dai, F, Rashidi, A, Brilakis, I and Vela, P (2013) Comparison of Image-Based and Time-of-Flight-Based Technologies for Three-Dimensional Reconstruction of Infrastructure. Journal of Construction Engineering and Management, 139(01), 69–79.
Gosling, J, Naim, M and Towill, D (2013) Identifying and Categorizing the Sources of Uncertainty in Construction Supply Chains. Journal of Construction Engineering and Management, 139(01), 102–10.
Li, H, Arditi, D and Wang, Z (2013) Factors That Affect Transaction Costs in Construction Projects. Journal of Construction Engineering and Management, 139(01), 60–68.
Meduri, S S and Annamalai, T R (2013) Unit Costs of Public and PPP Road Projects: Evidence from India. Journal of Construction Engineering and Management, 139(01), 35–43.
Minchin, R E, Cui, S, Walters, R C, Issa, R and Pan, J (2013) Sino-American Opinions and Perceptions of Counterfeiting in the Construction Supply Chain. Journal of Construction Engineering and Management, 139(01), 1–8.
Rubio-Romero, J C, Rubio, M C and García-Hernández, C (2013) Analysis of Construction Equipment Safety in Temporary Work at Height. Journal of Construction Engineering and Management, 139(01), 9–14.
Tsolas, I E (2013) Modeling Profitability and Stock Market Performance of Listed Construction Firms on the Athens Exchange: Two-Stage DEA Approach. Journal of Construction Engineering and Management, 139(01), 111–9.
Valdes-Vasquez, R and Klotz, L E (2013) Social Sustainability Considerations during Planning and Design: Framework of Processes for Construction Projects. Journal of Construction Engineering and Management, 139(01), 80–89.
Zeynalian, M, Trigunarsyah, B and Ronagh, H R (2013) Modification of Advanced Programmatic Risk Analysis and Management Model for the Whole Project Life Cycle’s Risks. Journal of Construction Engineering and Management, 139(01), 51–59.