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Boudet, H S, Jayasundera, D C and Davis, J (2011) Drivers of Conflict in Developing Country Infrastructure Projects: Experience from the Water and Pipeline Sectors. Journal of Construction Engineering and Management, 137(07), 498–511.

Hermann, U H, Hasan, S, Al-Hussein, M and Bouferguene, A (2011) Innovative System for Off-the-Ground Rotation of Long Objects Using Mobile Cranes. Journal of Construction Engineering and Management, 137(07), 478–85.

Ikuma, L H, Nahmens, I and James, J (2011) Use of Safety and Lean Integrated Kaizen to Improve Performance in Modular Homebuilding. Journal of Construction Engineering and Management, 137(07), 551–60.

Lucko, G (2011) Optimizing Cash Flows for Linear Schedules Modeled with Singularity Functions by Simulated Annealing. Journal of Construction Engineering and Management, 137(07), 523–35.

  • Type: Journal Article
  • Keywords: Project management; Financial factors; Budgets; Flow profiles; Scheduling; Forecasting; Project planning; Financing; Financial management; Budgets; Flow profiles; Scheduling; Line of balance; Forecasting; Periodic function;
  • ISBN/ISSN: 0733-9364
  • URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0000324
  • Abstract:
    The ability of construction contractors to plan and manage cash flow is critical for their economic success. The cumulative interaction of outflows (labor, materials, and equipment costs) and inflows (progress payments less retainage) creates a profile with a complex zigzag shape. This could only be modeled by simplification, e.g., as values tabulated at discrete times; averaged S-curves without peaks; or envelopes of all possible constellations. Neither is suited for a fully integrated model that dynamically links schedules with their cash flows for optimization. Therefore, singularity functions, whose components define ranges of behavior between cutoffs, are used to flexibly yet accurately model cash flow profiles and their various payment terms. The new approach augments construction project management toward an integrated planning model and is validated with an example from the literature. Optimization with a simulated annealing algorithm shifts activity positions in a randomized but directed search for maximizing profits.

Maravas, A and Pantouvakis, J (2011) Fuzzy Repetitive Scheduling Method for Projects with Repeating Activities. Journal of Construction Engineering and Management, 137(07), 561–4.

Wibowo, A and Kochendoerfer, B (2011) Selecting BOT/PPP Infrastructure Projects for Government Guarantee Portfolio under Conditions of Budget and Risk in the Indonesian Context. Journal of Construction Engineering and Management, 137(07), 512–22.

Xu, J and Zeng, Z (2011) Applying Optimal Control Model to Dynamic Equipment Allocation Problem: Case Study of Concrete-Faced Rockfill Dam Construction Project. Journal of Construction Engineering and Management, 137(07), 536–50.

Zetterlund, M, Norberg, T, Ericsson, L O and Rosén, L (2011) Framework for Value of Information Analysis in Rock Mass Characterization for Grouting Purposes. Journal of Construction Engineering and Management, 137(07), 486–97.