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Study the Causes of Formal Change Orders and Analyze their Impact on Building Projects

دراسة أسباب أوامر التغيير النظامية و تحليل أثرها على مشاريع الأبنية

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 Publication date 2013
and research's language is العربية
 Created by Shamra Editor




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Many studies have tried to determine the impact of change orders on the cost and time of the project, which in turn leads to differences and disputes between contractors and owners. Where change orders dealt with in various engineering projects. This search displays formal causes of change orders occurring during the life cycle of the project in Syrian coastal zone. Particular building projects are studied, and the most important impact on completion of the project indicators (cost_time) is discussed. Also identifies the party responsible for the change, and shows the weak points during follow the change order life cycle and provides recommendations for each of the responsible parties, stressing the need to monitor performance in order to manage change order and address the causes and impact alleviation. The prediction models were drafted at additional cost that may result from change orders.


Artificial intelligence review:
Research summary
تناولت هذه الدراسة أسباب أوامر التغيير النظامية وتأثيرها على مشاريع الأبنية في المنطقة الساحلية في سوريا. يهدف البحث إلى تحديد أسباب أوامر التغيير التي تحدث أثناء دورة حياة المشروع الإنشائي، وتحديد الطرف المسؤول عنها (إدارة أو دارس)، وتحليل تأثيرها على تكلفة وزمن المشروع. تم استخدام المنهج الإحصائي التحليلي من خلال مسح عينة من مشاريع الأبنية في المنطقة الساحلية، وتم تسجيل البيانات المطلوبة وإدخالها في برنامج SPSS. أظهرت النتائج أن الإدارة (المالك والمشرف) هي أكبر مسبب لأوامر التغيير بنسبة 60%، تليها الجهة الدارسة بنسبة 40%. كما تبين أن أوامر التغيير تؤدي إلى زيادة في تكلفة المشروع بنسبة 31% وزيادة في مدة الإنجاز بنسبة 29%. تم اقتراح نماذج للتنبؤ بالكلفة المضافة نتيجة أوامر التغيير باستخدام برنامج SPSS، وتم تصميم واجهة حاسوبية لتسهيل استخدام هذه النماذج من قبل أطراف المشروع. أوصى البحث بتفويض الإدارات الفرعية ببعض صلاحيات الإدارة العامة، وتحفيز الدارس من خلال مكافآت، واتباع سياسة التأهيل المسبق للدارسين.
Critical review
دراسة نقدية: تعد هذه الدراسة مهمة في مجال إدارة المشاريع الهندسية، حيث تقدم تحليلاً شاملاً لأسباب وتأثيرات أوامر التغيير النظامية على مشاريع الأبنية. ومع ذلك، يمكن توجيه بعض الانتقادات البناءة لهذه الدراسة. أولاً، قد يكون من المفيد توسيع نطاق الدراسة ليشمل مناطق أخرى في سوريا أو دول أخرى للحصول على نتائج أكثر شمولية. ثانياً، يمكن تحسين دقة التنبؤات من خلال استخدام تقنيات تحليل بيانات أكثر تطوراً مثل التعلم الآلي. ثالثاً، يمكن تعزيز التوصيات بتقديم أمثلة عملية أو دراسات حالة توضح كيفية تطبيق هذه التوصيات في الواقع العملي. وأخيراً، يمكن أن تكون الدراسة أكثر شمولية إذا تم تضمين تأثيرات أخرى لأوامر التغيير مثل تأثيرها على جودة المشروع أو رضا العملاء.
Questions related to the research
  1. ما هي النسبة المئوية لأوامر التغيير الناتجة عن الإدارة في مشاريع الأبنية المدروسة؟

    النسبة المئوية لأوامر التغيير الناتجة عن الإدارة في مشاريع الأبنية المدروسة هي 60%.

  2. ما هو تأثير أوامر التغيير على تكلفة المشروع وفقاً للدراسة؟

    أوامر التغيير تؤدي إلى زيادة في تكلفة المشروع بنسبة 31%.

  3. ما هي التوصيات المقدمة لتحسين إدارة أوامر التغيير؟

    التوصيات تشمل تفويض الإدارات الفرعية ببعض صلاحيات الإدارة العامة، وتحفيز الدارس من خلال مكافآت، واتباع سياسة التأهيل المسبق للدارسين.

  4. ما هي النسبة المئوية للانحراف الزمني الناتج عن أوامر التغيير في المشاريع المدروسة؟

    النسبة المئوية للانحراف الزمني الناتج عن أوامر التغيير في المشاريع المدروسة هي 29%.


References used
Gilbreath,R.,D.,: Managing Constructi on Contracts, Operational Controls For Commencial Risks, Awiley _ Inter science Publication, John Wiley & Sons19,(1992),337-346
Chen,J,.H,.: Hybrid ANN-CBR model for disputed change orders in construction projects, Journal of Construction Engineering and Management, ASCE 17 (2007) 56–64
Sweis,G,. Sweis,R,. AbuHammad,A,. & Shboul,A,.: Delays in construction projects :The case of Jordan; International Journal of Project Management 20 (2002) 76–73
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