Journal of Construction Engineering, Management & Innovation

Mehrab Hossain Shakil Ahmed

Construction industry plays a vital role in the economic development of any country. As construction industry is less mechanized and more labor intensive, construction workers are backbone of this industry. So the major consideration is ensuring workers safety during construction. This paper is aimed to examine the current safety status and identify the main causes of not practicing safety rules in the construction sites in Bangladesh. The study was conducted in three stages. Firstly the existing rules and regulations of construction safety were studied. Secondly physical survey was conducted among the ongoing construction sites. Thirdly factors that influence the safety performance in construction sites were identified by conducting questionnaire survey and ranked based on Factor Index (FI). This study found 20 major causes those affect the construction safety performance at job site. According to the physical survey data, it was obvious that workers were working without PPE and fall protective system. From the data analysis, the main cause of not practicing safety rules are lack of enforcement of safety rules and regulations, lack of safety awareness among the construction stakeholder and lack of safety training. The survey results may help the authorities to increase the awareness of safety and enforce the construction safety rules in the next project approach.

https://doi.org/10.31462/jcemi.2018.04147156

Abdullah Emre KELEŞ Mehmet Emin ÖCAL

In today the importance of communication in the construction industry in the world is not known enough. Therefore, various defects are experienced in business processes. This is also valid for the construction industry. Losses due to lack of communication is an issue that is overlooked in the construction business. In this study, the construction and operating business to create awareness about the importance of communication and place of origin proposals have been made to minimize problems. In this respect firstly, communication problems in the construction sector were discussed. It is divided into internal and external business communication. In this study, it has been developed solutions to the construction firm’s external communication. External communication stakeholders in the construction sector are defined and the communications of the enterprises with these stakeholders have been examined. The economic dimension of the problem that occurred communication origin were also discussed. It has been argued that communication-related problems have lost to business economies.

https://doi.org/10.31462/jcemi.2018.04157161

Savaş Bayram

In Turkey, for the unit price bidding construction works based on Public Procurement Law, revised unit price is used in case of purchasing too much over the anticipated quantity in the bidding letter. In this context, the revised unit price is applied to the related work item in case of more than 20% quantity increase also with this increase should be more than 1% of the contract price. The uncertainty of how to make the revised unit price calculation is clearly defined by a formula. The basic logic in the revised unit price application is to reduce the expected benefit of the relevant work items in terms of the contractor in case of unexpected increase in the quantity of work items. In the revised unit price practices, there may be various disputes arising from the fact that contractors and/or employers cannot possess the principles of implementation. In this study, the revised unit price dispute between the employer and the contractor was discussed. Advantages/disadvantages of the applied revised unit prices in a sewage construction work; case file in the Basic Commercial Court in Kayseri, Turkey was investigated in terms of employer and contractor.

https://doi.org/10.31462/jcemi.2018.04162170

Emre Caner Akçay

Renewable energy sources have gained importance as the world’s energy demand has increased over the years. In many countries, governments have started to give more importance to renewable energy sources in order to supply the growing energy demand. As a developing country, Turkey has also increased energy demand. New investments are needed in the renewable energy sector in order to satisfy this increasing demand. Solar energy has become one of the popular options among all renewable sources due to its widespread availability. Investments to produce solar energy can be feasible options for investors, but the risk factors stemming from the macro environment as well as project level risks should be identified. The objective of this study was to identify the risk factors and their impacts on the cash flow parameters of solar energy investments. To that end, an extensive literature survey is carried out relating to the risk factors of Public Private Partnership (PPP) projects, a survey questionnaire is applied to three different companies, and a Delphi method is used for the reduction process. The results are expected to guide the future solar energy investors in Turkey.

https://doi.org/10.31462/jcemi.2018.04171177