Interference in Stochastic Flow‐line Models
Publication: Journal of Construction Engineering and Management
Volume 113, Issue 3
Abstract
The nature of the variability of construction activity duration is described and its effects on sequential repetitive activities investigated. The central limit theorem is used to argue that the distribution of activity durations containing sufficient sequential repetitions of an operation will be approximately normal. Based on this assumption of normality, the probability of an activity interfering with the progress of the next activity in the sequence is investigated. It is shown that this is a function of the probability of independent activities overlapping on the final operations and a heuristic method of evaluating this function is described. The assumptions inherent in this heuristic method are tested by comparing the results of such calculations with the results from a digital simulation model. It is shown that the calculated probabilities of interference compare very well with the estimated probabilities from the simulation results except for the results for activities whose average rates of progress diverge in time. These discrepancies are, however, unimportant in the anticipated uses of the model, where convergent activities have much greater significance.
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References
1.
Ashley, D. B. (1980). “Simulation of repetitive‐unit construction.” J. Constr. Div., ASCE, 106(2).
2.
Benjamin, J. R., and Cornell, C. A. (1970). Probability, Statistics and Decision for Civil Engineers. McGraw Hill, New York, N.Y., p. 252.
3.
Duff, A. R. (1980). “A stochastic analysis of activity duration.” Constr. Papers.Chartered Inst. of Building, Berkshire, England, 1(1).
4.
Duff, A. R. (1984). “A probabilistic analysis of interference between sequential construction activities.” Thesis presented to the University of Manchester, at Manchester, England, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
5.
Forbes, W. S. (1971). “Flow charts to control progress on housing sites.” Building Res. Station Digest No. 134. Building Research Establishment, Watford, England.
6.
Legard, D. A. (1983). “Probabilistic analysis of an idealised model of construction projects.” Constr. Management and Economics, 1, E & FN Spoon Ltd., London, England.
7.
Line‐of‐Balance—A Graphical Method of Industrial Programming. (1962). Dept. of U.S. Navy, Office of Naval Material, NAVEXOS, P1851 (Rev. 4‐62).
8.
Lumsden, P. (1968). The Line‐of‐Balance Method. Pergamon, London, England. Ng, W. F. K. (1981). “Simulation of interference between activities on a line‐of‐ balance schedule.” Thesis presented to the University of Manchester, at Manchester, England, in partial fulfillment of the requirements for the degree of Master of Science.
9.
O'Brien, J. J. (1975). “Vertical production method schedule for high‐rise buildings.” J. Constr. Div., ASCE, 101(4).
10.
Oxley, R. (1975). “Optimising productivity and cost in repetitive construction.” Thesis presented to the University of Manchester, at Manchester, England, in partial fulfillment of the requirements for the degree of Master of Science.
11.
Pilcher, R., and Oxley, R. (1978). “Optimising productivity and cost in repetitive construction.” Proc. CIB W‐65, 2nd Symp. on Organization and Management of Construction, Vol. 1.Haifa, Israel.
12.
“Programming house building by line‐of‐balance.” (1968). National Building Agency, London, England.
13.
Spooner, J. E. (1974). “Probabilistic estimating.” J. Constr. Div., ASCE, 100(1), Mar.
14.
Vergera, A. J., and Boyer, L. T. (1974). “Probabilistic approach to estimating and cost control.” J. Constr. Div., ASCE, 100(4).
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Copyright © 1987 ASCE.
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Published online: Sep 1, 1987
Published in print: Sep 1987
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