The use of a discrete-event simulation model with erlang probability distributions in the estimation of earthmoving production

S. D. Smith, J. R. Osborne, M. C. Forde

Research output: Contribution to journalArticlepeer-review

Abstract

Earthmoving operations are a major part of many civil engineering works and as such they present an ideal opportunity for improved estimation forecasts and efficiency. This paper presents a computer simulation model which is based on the assumption that an earthmoving cycle can be broken down into its component parts which can be represented by Erlang probability distributions. Such a distribution can be generated on a computer and incorporated into a discrete-event simulation program. The development of the model and of a program to carry out simulation runs is described. The importance of model validity is discussed; results from a simulation cannot be relied upon if the model does not actually agree with the real system. The results of a validation exercise are shown which compares system output data (obtained from actual contracts in the UK) and model output data. Simulation output data is also shown in a graphical form which is intended to ease the use of the model on a site basis.

Original languageEnglish
Pages (from-to)25-44
Number of pages20
JournalCivil Engineering Systems
Volume13
Issue number1
DOIs
Publication statusPublished - 1 Jan 1996

Keywords / Materials (for Non-textual outputs)

  • Discrete-event simulation
  • Earthmoving
  • Estimation
  • Validation

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