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Ammar, M A (2011) Optimization of Project Time-Cost Trade-Off Problem with Discounted Cash Flows. Journal of Construction Engineering and Management, 137(01), 65–71.

Gull, I (2011) Testing of Strength of Recycled Waste Concrete and Its Applicability. Journal of Construction Engineering and Management, 137(01), 1–5.

Hariga, M and El-Sayegh, S M (2011) Cost Optimization Model for the Multiresource Leveling Problem with Allowed Activity Splitting. Journal of Construction Engineering and Management, 137(01), 56–64.

  • Type: Journal Article
  • Keywords: Analytical techniques; Leveling; Optimization models; Splitting; Costs; Analytical techniques; Leveling; Optimization models; Splitting;
  • ISBN/ISSN: 0733-9364
  • URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0000251
  • Abstract:
    Resource leveling aims at minimizing the resource usage fluctuations, which is accomplished by moving noncritical activities within their float. The project duration is fixed and is not affected by the leveling. Most of resource leveling techniques assumes that activities cannot be split. Although this assumption is valid for most construction activities, there are several activities that can be split to achieve better resource leveling. However, there is an added cost associated with splitting such as startup and restarting costs. This paper presents an optimization model for resource leveling that allows activity splitting and minimizes its associated costs. The objective is to level resources in a way that provides a tradeoff between the extra cost of acquiring and releasing resources versus the extra cost of activity splitting. The model can be used to determine at what values of the splitting cost, the preemption of an activity is recommended. One example problem is solved at the end of the paper in order to illustrate the proposed model.

Hassan, M M, Odeh, I and El-Rayes, K (2011) New Approach to Compare Glare and Light Characteristics of Conventional and Balloon Lighting Systems. Journal of Construction Engineering and Management, 137(01), 39–44.

Lucko, G (2011) Integrating Efficient Resource Optimization and Linear Schedule Analysis with Singularity Functions. Journal of Construction Engineering and Management, 137(01), 45–55.

Mitropoulos, P and Namboodiri, M (2011) New Method for Measuring the Safety Risk of Construction Activities: Task Demand Assessment. Journal of Construction Engineering and Management, 137(01), 30–38.

Rashidi, A, Jazebi, F and Brilakis, I (2011) Neurofuzzy Genetic System for Selection of Construction Project Managers. Journal of Construction Engineering and Management, 137(01), 17–29.

Regan, M, Smith, J and Love, P E D (2011) Impact of the Capital Market Collapse on Public-Private Partnership Infrastructure Projects. Journal of Construction Engineering and Management, 137(01), 6–16.

Shen, X, Lu, M and Chen, W (2011) Tunnel-Boring Machine Positioning during Microtunneling Operations through Integrating Automated Data Collection with Real-Time Computing. Journal of Construction Engineering and Management, 137(01), 72–85.

Zhou, Q, Fang, D and Mohamed, S (2011) Safety Climate Improvement: Case Study in a Chinese Construction Company. Journal of Construction Engineering and Management, 137(01), 86–95.