17th International Colloquium SUSTAINABLE DECISIONS IN BUILT ENVIRONMENT 15 May 2019, Vilnius, Lithuania e-ISBN 978-609-476-195-9 Vilnius Gediminas Technical University Article ID: colloquium.2019.006 https://doi.org/10.3846/colloquium.2019.006 * Corresponding author. E-mail: jolanta.tamosaitiene@vgtu.lt © 2019 Authors. Published by VGTU Press. This is an open-access article distributed under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The risk assessment model for construction projects including value creation and protection aspects Jolanta Tamošaitienė * , Miglė Lapeikytė Department of Construction Management and Real Estate, Faculty of Civil Engineering, Vilnius Gediminas Technical University, Vilnius, Lithuania Abstract. The article focuses on the identification and classification of key risk management criteria that represent the value creation and protection aspects for the construction industry. Nowadays, the assessment of the risk level of a construction project is especially important for the quality of construction projects as well as the growth of enterprises and the sector. To establish the most important criteria for the successful growth of the construction sector including value creation and protection aspects are developed. Keywords: risk, system, model, construction, value creation, aspects. Introduction Enterprises implement different projects to achieve goals stipulated in their organizational charter. However, timely completion of such projects is rarely successful despite the reached financial and qualitative goals. One of the most important factors that lead to the incompletion of most projects is the lack of attention to the effects of risks, the aggregated effect of which becomes a major hurdle. In other words, the interactions among risks lead to the aggregated effect, which is greater than the total effects of individual risks. 1. Risks assessment Risk assessment (Zavadskas, Turskis, & Tamošaitiene, 2010) in an environment involves a systematic and comprehensive methodology for quantifying the probability of the occurrence of a particular adverse event and the magnitude of the associated consequence of its outcome (Tamošaitienė, 2019; Zavadskas, Turskis, & Tamošaitiene, 2008b; Chan & Wang, 2013; Tamošaitienė, Zavadskas, & Turskis, 2013). In an environment, risk assessment faces different types of uncertainties that can be accounted by theories of probability, possibility, game and fuzzy set, respectively. The former type of uncertainty is often referred to as objective or stochastic whereas the latter is often referred to as subjective or state-of-knowledge. Strategic objectives of an enterprise are accomplished through portfolios of risks. However, the materialization of portfolio risks may affect a portfolio's success and in the same time implemented the success of the activity (Ghasemi, Sari, Yousefi, Falsafi, & Tamosaitiene, 2018). In life, each situation brings together many types of risks (Environmental Protection Authority, 2009; Project Management Institute, 2012; Zavadskas, Turskis, & Tamošaitienė, 2008a; Kumar, Singh, & Gregory, 2016; Zeleňáková & Zvijáková, 2017). Risk management approaches depend on the context of the risk environment and the business activity, i.e. construction (Figure 1). Each activity fields have some specification for the risk assessment. Risk assessment process and requirements in presented in several documents (Project Management Institute, 2003; Chapman, 1997; Standards Australia, 2004; International Electrotechnical Commission, 2001; Office of Figure 1. Risk management approaches