The assessment of construction project risks with the use of fuzzy sets theory

Nabi Ibadov,

Janusz Kulejewski


This paper presents the results of a questionnaire survey conducted by the authors to identify the risk factors affecting construction projects in Poland. The elements of the fuzzy sets theory are applied to rank the risk factors due to their degree of significance and to evaluate the threat to the construction project caused by a given risk.

Słowa kluczowe: construction projects risk, factors, fuzzy sets and systems

Baloi D., Price D., Modelling global risk factors affecting construction cost performance, International Journal of Project Management, 21, 2003, 261-269.

Bilgiç T., Türkşen I.B., Measurement of membership functions: Theoretical and empirical work, [In:] Fundamental of Fuzzy Sets, The Handbook of Fuzzy Sets (D. Dubois, H. Prade, Eds.), Vol. 7, Kluwer, Dordrecht, 2000.

Carr V., Tah J., A fuzzy approach to construction project risk assessment and analysis: construction project risk management system, Advances in Engineering Software, 32, 2001, 847-857.

Hisdal E., Are grades of membership probabilities?, Fuzzy Sets and Systems, 25, 1988, 325-348.

Ibadov N., Kulejewski J., Krzemiński M., Fuzzy ordering of the factors affecting the implementation of construction projects in Poland, AIP Conference Proceedings 1558, 1298, 2013.

Marchant T., The measurement of membership by comparisons, Fuzzy Sets and Systems, 148, 2004, 157-177.

Tah J., Carr V., A proposal for construction project risk assessment using fuzzy logic, Construction Management and Economics, 18, 2000, 491-500.

Türkşen I.B., Measurement of membership functions and their assessment, Fuzzy Sets and Systems, 51, 1991, 295-307.

Zadeh L.A., Fuzzy Sets, Information and Control, Vol. 8, 1965, 338-353.

Zou P., Zhang G., Wang J., Understanding the key risks in construction projects in China, International Journal of Project Management, 25, 2007, 601-614.