Effect of Sub-Contractor Selection on Construction Project Success in Turkey

Abstract

The construction industry leads the national economy in developing countries. It involves industrial requirements, such as developing technologies, related expertise, demand variability, high production speed and progress. Firms in the industry use subcontractors to produce fast, effective solutions. Therefore, projects' success varies depending on subcontractors' rather than general contractors' performance. This study aimed to develop a model of selection criteria for subcontractors and measure their impact on project success. Construction firms using subcontractors were chosen as the target group. Doloi et al.'s [1] model, which measures the impact of contractor selection on project success, was developed (by adding safety performance) and used to measure subcontractors' impact on project success. Data on the selection of subcontractors from 93 construction firms that employ subcontractors in their projects were collected through a survey. The impact of the subcontracting selection factor on projects' overall performance was presented with five hypotheses and modeled using a structural equation model. The weight of each selection factor in the subcontracting selection and the impact on the overall project were designated in the model by determining the standardized regression weights (β). Four hypotheses were accepted and one rejected. This study may contribute to the prequalification conditions in the process of selecting subcontractors in the future.

İnşaat Projelerinde Kalite Performansını Etkileyen Faktörler: Türkiye’de Bir Alan Çalışması

“…İnşaat sektöründe bazı işlerin taşeron firma eliyle yaptırılması yaygın bir uygulamadır. Taşeron firma seçiminde genellikle önceki iş deneyimleri, mevcut iş birlikleri ve kalite performansına ilişkin kriterler dikkate alınmalıdır [24]. Ancak, yaygın olarak uygulanan en ucuz teklif veren firma ile sözleşme imzalanması prensibi; teknik açıdan ilgili deneyime sahip personel, sahip olduğu ekipman, mali durum ve iş yükü ön yeterlilik kriterlerinin dikkate alınmamasına yol açabilmektedir.…”

Analysis of Factors Affecting the Success of Sustainable Development Projects with the Help of Machine Learning Tools

“…Some of the critical factors of the project may not be transferable to another project due to environmental variables, the proj'ct's nature, the nature of the involved organization, and the priorities of project objectives. [2,13] e difference between the success factors and success criterion is of considerable importance. Success criteria are those which are used to judge the project's success or failure.…”

“…Despite various and multiple successful projects in this area, there is no consensus about a single and comprehensive de nition of project success due to di erent, and often contradictory, objectives of stakeholders involved in a project [1,2]. Some studies have de ned success by determining some criteria and indices, while others have introduced a set of factors a ecting the success of a project.…”

“…Organizations need continuous performance improvement to maintain their existence, eliminate their weaknesses and improve their strengths [2,5]. Prediction of success is an essential factor for organizations in addition to expanding evaluation.…”

Scheduling, Management and Optimization of Construction Process

“…Gelişen teknolojiyle birlikte endüstriyel inşaat yöntemlerinin geliştirilmesi ve inşaat malzemesi üreticilerinin yenilikçi malzemeler üretip sektörün kullanımına sunmaları farklı inşaat yöntemlerinin uygulanmasına yol açmıştır [8]. Artan çevre duyarlılığı sonucunda çevreye daha az zarar veren inşaat malzemeleri ve tekniklerinin kullanımı yaygınlaşmıştır [9]. Belirtilen etkiler neticesinde inşaat sektörünün uyguladığı yöntemlerde önemli değişiklikler olmuştur.…”