Open AccessAN EXACT SOLUTION FOR THE RESOURCE-CONSTRAINED CONSTRUCTION SCHEDULING PROBLEM
Author(s) -
Bartłomiej Sroka,
Elżbieta RadziszewskaZielina
Publication year - 2016
Publication title -
engineering structures and technologies
Language(s) - English
Resource type - Journals
eISSN - 2029-8838
pISSN - 2029-882X
DOI - 10.3846/2029882x.2016.1196916
Subject(s) - critical path method , computer science , scheduling (production processes) , linear programming , matlab , mathematical optimization , security token , job shop scheduling , time complexity , software , algorithm , schedule , mathematics , engineering , programming language , operating system , systems engineering
Reduced time and, by the same token, the cost of the project is a crucial factor in contemporary construction. This article presents a method for the exact optimisation of a resource-constrained scheduling problem. Based on the Critical Path Method, graph theory and linear programming, an algorithm was developed and the FROPT program was written in Matlab to minimise the execution time of the task. By using the newly-created program, sample networks were calculated and the results were compared with results obtained by using the MS Project scheduling program (using approximation algorithm). The execution time obtained by using FROPT were on average 10% shorter than those obtained using MS Project. In selected cases the improvement in execution time reached 25%. A deterministic approach to the problem may shorten planned project times and bring financial benefits. Due to the exponential complexity of the algorithm, it is most useful in solving small or highly coherent networks. The algorithm and program may result in benefits not offered by commercial software for planners of building projects.