Conceptual cost estimate of road construction projects in Saudi Arabia
المؤلف
المصدر
Jordan Journal of Civil Engineering
العدد
المجلد 7، العدد 3 (30 سبتمبر/أيلول 2013)، ص ص. 285-294، 10ص.
الناشر
جامعة العلوم و التكنولوجيا الأردنية عمادة البحث العلمي
تاريخ النشر
2013-09-30
دولة النشر
الأردن
عدد الصفحات
10
التخصصات الرئيسية
الموضوعات
الملخص EN
This study aims at developing regression models to predict the total construction cost of a road project in the early phases.
The models were developed based on 52 sets of data collected in Saudi Arabia.
The projects were implemented during 2011.
The procedure used resulted in the formulation of 5 regression models ; 2 of them include bid quantities of the major construction activities as independent variables and 3 include road length and road width as independent variables.
The coefficient of determination (r2) of the developed models is ranging from 0.65 to 0.97.
This indicates that the relationship between the dependent and independent variables of the developed models is good and the predicted values from a forecast model fit with the real-life data.
The value of the Mean Absolute Percentage Error (MAPE) of the developed regression models is tested.
It is ranging from 17 % to 42 %.
The results compare favorably with past researches which have shown that the estimate accuracy in the early stages of a project is between ±25 % and ±50 %.
Such types of models are very useful, especially in simplicity and ability to be handled by calculator or using a simple computer program.
It has a good benefit in estimating project cost at early stages of the project, since the information needed could be extracted easily from sketches or scope definition of the projects.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Mahamid, Ibrahim. 2013. Conceptual cost estimate of road construction projects in Saudi Arabia. Jordan Journal of Civil Engineering،Vol. 7, no. 3, pp.285-294.
https://search.emarefa.net/detail/BIM-329493
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Mahamid, Ibrahim. Conceptual cost estimate of road construction projects in Saudi Arabia. Jordan Journal of Civil Engineering Vol. 7, no. 3 (2013), pp.285-294.
https://search.emarefa.net/detail/BIM-329493
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Mahamid, Ibrahim. Conceptual cost estimate of road construction projects in Saudi Arabia. Jordan Journal of Civil Engineering. 2013. Vol. 7, no. 3, pp.285-294.
https://search.emarefa.net/detail/BIM-329493
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 293-294
رقم السجل
BIM-329493
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر