Jun, D H and El-Rayes, K (2011) Multiobjective optimization of resource leveling and allocation during construction scheduling. Journal of Construction Engineering and Management, 137(12), pp. 1080-1088. ISSN 0733-9364
Abstract
Construction scheduling techniques often generate schedules that cause undesirable resource fluctuations that are inefficient and costly to implement on site. This paper presents the development of a novel multiobjective optimization model that is capable of measuring and minimizing these undesirable resource fluctuations to maximize resource utilization efficiency and minimize project duration while complying with all precedence relationships and resource availability constraints. The model incorporates three main modules: (1)a startup module that calculates lower and upper bounds for the model decision variables; (2)a scheduling module that generates practical schedules and evaluates their performance; and (3)a multiobjective genetic algorithm module that searches for and identifies optimal schedules. The model is integrated in a commercially available software system to facilitate its use and adoption by construction planners. An application example is analyzed to illustrate the use of the model and demonstrate its new and unique capabilities in generating optimal trade-offs between maximizing resource utilization efficiency and minimizing the duration of construction projects.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | optimization; resource management; scheduling |
| Index terms: | scheduling, resource levelling, resource management, duration, construction scheduling, precedence relationship, construction project, upper bound, startup, module, construction planner, efficiency, genetic algorithm, resource utilization |
| Subjects: | control systems, operations research, probability and distributions, performance management, architectural elements, resource management, production management, business, algorithms, project controls, practitioner, site logistics |
| Topics: | Project Management, Site Management, Quality Management, Time Control, Business Strategy, Design Practice, Research Practice, Roles and Professions, Digital Applications |
| Descriptive scope: | 3 PCA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here