This paper presents a model of scheduling of multi unit construction project based on an NP-hard permutation flow shop problem, in which the considered criterion is the sum of the costs of the works' execution of the project considering the time of the project as a constraint. It is also assumed that each job in the units constituting the project may be realized in up to three different ways with specific time and cost of execution. The optimization task relies on solving the problem with two different decision variables: the order of execution of units (permutation) and a set of ways to carry out the works in units. The task presented in the paper is performed with the use of a created algorithm which searches the space of solutions in which metaheuristic simulated annealing algorithm is used. The paper presents a calculation example showing the applicability of the model in the optimization of sub-contractors' work in the construction project.

JO - Archives of Civil Engineering L1 - http://www.czasopisma.pan.pl/Content/84080/mainfile.pdf L2 - http://www.czasopisma.pan.pl/Content/84080 IS - No 1 EP - 158 KW - harmonogramowanie przedsięwzięć budowlanych KW - symulowane wyżarzanie KW - flow shop KW - optymalizacja KW - wybór wykonawców KW - construction projects scheduling KW - simulated annealing KW - flow-shop KW - optimization KW - contractor selection ER - A1 - Podolski, M. PB - WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES JF - Archives of Civil Engineering SP - 143 T1 - Harmonogramowanie pracy zasobów w przedsięwzięciu wieloobiektowym z zastosowaniem kryterium Koszt / Czas T1 - Scheduling of job resources in multiunit projects with the use of Time / Cost criteria UR - http://www.czasopisma.pan.pl/dlibra/docmetadata?id=84080