Controlling of variation orders in highway projects in Jordan

العناوين الأخرى

إدارة الأوامر التغييرية في مشاريع الطرق بالأردن

مقدم أطروحة جامعية

Hadi, Inas Zaki

مشرف أطروحة جامعية

Jurayw, Basim Kazim

أعضاء اللجنة

Hiyasat, Muhammad A. S.
Muslim, Majid Sulayman

الجامعة

جامعة الإسراء

الكلية

كلية الهندسة

دولة الجامعة

الأردن

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2014

الملخص الإنجليزي

Variation orders are the most disruptive and unpleasant events of the projects because of their impacts on cost and completion date of the project.

This thesis is about the variation orders in highway projects that are the most severe problems in the highway projects.

Variation order is any modification to the contractual terms of a project by the owner or the owner's representative, it can be a work that is added to or deleted from the original scope of work of a contract, which alters the original contract amount and/or completion date.

Change orders are common to most projects, and very common with large projects. This thesis focuses on the causes of variation orders and their impacts on time and cost.

Management system is suggested to control the variation orders of highway projects in Jordon.

The data collected from two sources the primary is the survey questionnaire conducted with project managers contracting and consulting businesses in highway projects.

The secondary is from some finished completed highway projects. From the literature review, the causes have been identified as follows: six reasons related to the owner, eighteen-related to the consultant, eighteen- related to the contractor, and six reasons are placed under others causes.

Also thirteen impacts of a variation orders were identified. According to the questionnaire results, the most ten important causes are change of schedule, ambiguous design details, change of plan or scope, conflict between contract documents, lack of coordination, safety considerations, client financial problem, change in design by consultant, socio-cultural factors, and changes in government regulations. The main impacts of variation orders are time delays, cost overrun, increase in overhead expenses, turnover of professionals and project team. According to the research findings, a management system has been proposed through the project lifecycle (conceptual, design and construction stages) to control the occurrence of variations and as a result, reducing their impacts. This system was evaluated through another questionnaire and the results showed that the proposed system would be successful tool for controlling variation orders occurrence in the highway projects in Jordan. The research conclusion states that using the proposed system would reduce the causes of variation orders in the projects, and control their impacts on highway projects in Jordan. This research will be an eye opener and a good reference for all the highway project owners and construction professionals since it includes valuable recommendations for a better control of variation orders in highway projects in Jordan.

التخصصات الرئيسية

العلوم الهندسية والتكنولوجية (متداخلة التخصصات)

الموضوعات

• الأردن
• مصرف الإمارات الإسلامي

عدد الصفحات

112

قائمة المحتويات

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-422384