Application of the Transportation Model in Linear Programming to Reduce Ready-Mix Concrete Supply Costs in Construction Projects: A Case Study of Al-Maidan Mosque Project in Al-Zawiya City
DOI:
https://doi.org/10.65405/j1we4d76Keywords:
Linear Programming, Transportation Model, Materials Management, Ready-Mix Concrete, Construction Projects, Cost ReductionAbstract
Materials management is one of the fundamental factors influencing the success of construction projects, as it directly affects project cost, execution time, and overall performance. Transportation activities represent a critical component of construction logistics due to their significant impact on procurement costs and resource utilization efficiency. This study investigates the application of the transportation model in linear programming to minimize the supply cost of ready-mix concrete in construction projects through a case study of Al-Maidan Mosque Project in Al-Zawiya City, Libya.
The study employed descriptive, analytical, and quantitative approaches. Data were collected from four ready-mix concrete suppliers operating in Al-Zawiya City, including production capacities, supply costs, and project demand requirements for foundations, columns, and slabs. A balanced transportation matrix was developed, and transportation problem-solving techniques, including the North-West Corner Method and the Least Cost Method, were applied to identify the most cost-effective supply plan.
The results demonstrated that the transportation model significantly reduces supply costs compared with the conventional procurement strategy based on a single supplier. The traditional supply cost amounted to LYD 431,500, while the cost decreased to LYD 255,225 using the North-West Corner Method and to LYD 249,895 using the Least Cost Method, achieving a total saving of LYD 181,605. The findings confirm the effectiveness of linear programming models as decision-support tools for improving resource management and logistics planning in construction projects.
The study recommends the adoption of operations research techniques and linear programming models in planning procurement and transportation activities, as well as expanding the use of quantitative decision-support tools within the construction sector.
Downloads
References
أبو النجا، محمد أحمد (2019). إدارة المشروعات الهندسية والتشييد. القاهرة: دار الكتب العلمية.
البكري، ثامر ياسر (2020). بحوث العمليات وتطبيقاتها في الإدارة والهندسة. عمان: دار اليازوري العلمية للنشر والتوزيع.
الحسيني، عبد الرحمن محمد (2021). الإدارة اللوجستية وسلاسل الإمداد في المشروعات الإنشائية. القاهرة: دار الفكر العربي.
الخطيب، محمود عبد الكريم (2018). إدارة المواد والمخزون في المشاريع الإنشائية. عمان: دار المسيرة للنشر والتوزيع.
السعدي، أحمد سالم (2022). تطبيقات البرمجة الخطية في اتخاذ القرارات الهندسية. مجلة العلوم الهندسية والتقنية، 14(2)، 55-68.
الشنطي، خالد عبد السلام (2020). دور إدارة المواد في تحسين أداء مشاريع البناء. مجلة الجامعة للأساتذة، 25(3)، 112-128.
الطاهر، علي محمد (2021). تطبيقات بحوث العمليات في قطاع التشييد والبناء. مجلة البحوث الهندسية، 18(1)، 77-92.
ثانياً: المراجع الأجنبية
Hillier, F. S., & Lieberman, G. J. (2021). Introduction to Operations Research (11th ed.). New York: McGraw-Hill Education.
Kerzner, H. (2022). Project Management: A Systems Approach to Planning, Scheduling, and Controlling (13th ed.). Hoboken, NJ: Wiley.
Kumar, R., & Sharma, S. (2021). Optimization of Transportation Problems in Construction Supply Chains. International Journal of Supply Chain Management, 10(4), 45–54.
Nahmias, S., & Olsen, T. L. (2024). Production and Operations Analysis (9th ed.). Long Grove, IL: Waveland Press.
PMI – Project Management Institute. (2021). A Guide to the Project Management Body of Knowledge (PMBOK® Guide) (7th ed.). Pennsylvania, USA: PMI.
Render, B., Stair, R. M., Hanna, M. E., & Hale, T. (2022). Quantitative Analysis for Management (14th ed.). Pearson Education.
Singh, A., Verma, P., & Gupta, R. (2020). Application of Transportation Models in Logistics Cost Optimization. International Journal of Industrial Engineering Research, 11(2), 78–88.
Stevenson, W. J. (2021). Operations Management (14th ed.). New York: McGraw-Hill.
Taha, H. A. (2017). Operations Research: An Introduction (10th ed.). Pearson Education.
Taylor, B. W. (2023). Introduction to Management Science (14th ed.). Pearson.
Heizer, J., Render, B., & Munson, C. (2023). Operations Management: Sustainability and Supply Chain Management (15th ed.). Pearson.
Chopra, S., & Meindl, P. (2022). Supply Chain Management: Strategy, Planning, and Operation (8th ed.). Pearson.
Panneerselvam, R. (2022). Operations Research (3rd ed.). PHI Learning.
Ahuja, R. K., Magnanti, T. L., & Orlin, J. B. (2019). Network Flows: Theory, Algorithms, and Applications. Pearson.
Winston, W. L. (2020). Operations Research: Applications and Algorithms (5th ed.). Cengage Learning.
Bazaraa, M. S., Jarvis, J. J., & Sherali, H. D. (2018). Linear Programming and Network Flows (5th ed.). Wiley.
