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Poor design is a major factor in reducing the overall performance of construction projects as well as being directly responsible for many projects cost overrun, delay and being plagued with rework, variations and disputation. This research discusse s the main factors affecting Design Quality in the Construction Industry in Syria. The result is based on a number of interviews and questionnaire surveys involving 54 designers, contractors and construction professionals. The survey identified 45 different factors classified in categories related to designer, management of the design process, owner and design documents. The severity of those factors was measured by the level of importance and was ranked according to the importance index. It was concluded that, insufficient overall design time, method of selecting the designer based on the lowest price offer, lack of documentation and changes client’s requirements were the most important factors. The results show that designers and contractors have different perceptions of the quality of design factors. The aim of this study is to assist all construction parties to plan effectively before starting a project during the design phase in order to minimize problems and eliminate extra costs needed to complete the defective design. Finally, some recommendations were made in order to improve the design quality in the construction industry.
This research aims to develop a model of decision-making for the selection of the most appropriate strategy of the maintenance methods of equipments. A model has been developed in order to determine the maintenance plan that causes the lowest cost, whether the cost of repairing or losses result from interruptions of work for maintenance.
Construction projects are subject to risks and uncertainties which affect project targets (cost, time, quality and safety). This paper reviews risks and their effects on construction projects in Syria, and it aims to develop risk management framew ork. In this work, risks in construction projects have been defined based on the literature review and interviews of some experts in the construction field. A questionnaire was designed to define the probability of risk occurrence and their effects, also to define the level of their effects by multiplying the probability occurrence with the effects. Another questionnaire was designed to define the extent of the effects of the most important risks on each target of the project, and to specify the procedures applied as a response to the risks. The results of this research revealed that "the Inflation, price changes" and "the difference between contracted quantities and actual quantities " are seen as the most important risk, where the studied risks in this work affect the schedule more than any other project targets. Also the results showed that avoiding the risks at the construction stage is the most used action.
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