Easa, S M (1989) Resource leveling in construction by optimization. Journal of Construction Engineering and Management, 115(2), pp. 302-316. ISSN 0733-9364
Abstract
Resource leveling is needed in construction to avoid the difficulties associated with the large variations in resource usage. This paper presents an integer-linear optimization model of resource leveling (single resource, continuous activities) which guarantees the optimal leveling. The objective function of the model minimizes the absolute deviations between the resource requirements and a uniform resource level, between consecutive resource requirements, or between the resource requirements and desirable nonuniform resource levels. The model requires as input the critical path method (CPM) scheduling results, from which the constraints and objective function of the model are established automatically by an interface program. Extensions of the model to multiple resources and trade-off of cost scheduling are suggested. The model is applicable to activity-on-arrow, activity-on-node, and precedence networks and is intended for small-to mediumsized construction projects.
| Item Type: | Article |
|---|---|
| Index terms: | guarantee, linear optimization, critical path method, resource levelling, scheduling, construction project, deviation, program, variation |
| Subjects: | algorithms, contractual condition, contract structure, operations research, software systems, financial and cost management, resource management, production management |
| Topics: | Digital Applications, Project Management, Time Control, Site Management, Contract Administration, Procurement, Cost Management |
| 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