Investigating the Factors Affecting Construction Material Supply Chain and Their Impact on Building Construction Projects Performance: The case of Ethiopian Construction Works Corporation

Abstract

Supply chain has become a fundamental element in the construction industry to improve the efficiency and productivity in recent decades. The purpose of this research is to investigate the factors affecting construction material supply chain and their impact on building construction projects performance in Ethiopian construction works corporation is undertaking the construction of 5000 houses around kaliti neighborhood of Addis Ababa, Ethiopia. A comprehensive literature review was carried out to identify specifically concerned not only challenge factors and their impact severity on performance but also performance of construction material supply chain and building projects improving options. To achieve the intended objectives mixed design method is used. Thus, 68 questionnaires were distributed to engineers working in ECWC and Addis Ababa housing development center, contractors and sub-contractors. Relative importance index (RII) and Spearman's Rank Correlation Coefficient of concordance analysis techniques were applied by using MS Excel and SPSS V-26. Analysis result has revealed that the top five main factor affecting the performance of CMSC in BCS are stemmed: planning, management, finance, supplier, and storage and handling clusters are identified as critical factors. On other hand, the supplier and the contractor sides are the first and the second main factor affecting the performance of MSC in BCS respectively. Also, results unearthed that the major impact that influences building construction project performance on quality is as severe as high. Specifically, impact that influences building construction project performance is very high on quality with 0.844 RII results. Furthermore, from study results: effective supply chain management leadership, supply chain analytics, innovation, and knowledge sharing and risk management strategies are the main strategies for improving material supply chain process in building sector the construction environment respectively. Therefore, to come up for a deep and detailed academic and practical (by corporation) research of the improvement process in construction supply chain proves to be necessary in order to orient research developments on this topic