Vol 7, No 7 (2016) > Civil Engineering >

Application of Production Scheduling Techniques for Dispatching Ready-mixed Concrete

Kittipong Thawongklang, Ladda Tanwanichkul


Abstract: Nowadays, the
ready-mixed concrete (RMC) industry plays an important role in construction
projects, since it has become one of the mechanisms in construction works and
it has become more widely used than in the past. Increasing efficiency is
focused on in order to be competitive in business. Therefore, this study aims
to increase efficiency of the delivery management system by using the modeling
of production planning and management of daily scheduling and dispatching of
ready-mixed concrete trucks in order to solve the bottleneck problems of
production, which are consequently affecting the RMC delivery process .In fact,
the capacity of ready-mixed concrete machines seems to be a limitation, since
concrete can only be mixed and then delivered in batches, one vehicle at a
time. Earliest Due Date (EDD) and First-Come, First-Served (FCFS) are two
techniques of priority rules used for RMC scheduling in providing more
precision and accuracy of related inputs which can be used in order improve
efficiency of the entire RMC process. In the model, factors affecting the RMC
delivery process, such as distances, travel speed and travel times are
determined by using GIS–Geographic Information Systems software (ArcGIS). The
mapping data is also input into the construction site data, which then builds a
model based on priority rules to determine the production and dispatching
schedule. Preliminary results from the model indicated that delivery delays can
be reduced, in addition to improving daily scheduling and reducing planning
time. Moreover, the Single Machine-Multiple Sites model was applied to a
concrete truck freight management company that had only one manufacturing
machine and it had to deliver to several construction sites in various urban
areas. By improving efficiency, by optimizing delivery times and by reducing
the cost of waiting time at various sites, this PDRMC model could cut operating
costs and increase the company’s revenue because there will be time for more
Keywords: Come-First Serve; Dispatching; Earliest Due Date; First Ready-mixed Concrete; Schedule

Full PDF Download


Baker, K.R., Trietsch, D., 2009. Principles of Sequencing and Scheduling. John Wiley & Sons

Feng, C.-W., Cheng, T.-M., Wu, H.-T., 2004. Optimizing the Schedule of Dispatching RMC Trucks through Genetic Algorithms. Automation in Construction, Volume 13(3), pp. 327–340

Lu, M., 2002. HKCONSIM: A Simulation Platform for Planning and Optimizing Concrete Plant Operations in Hong Kong. In: Proceedings of International Conference on innovation and sustainable Development of Civil Engineering in the 21st Century, Beijing, China, 1-3 August 2002, pp. 278–283

Pinedo, M.L., 2009. Planning and Scheduling in Manufacturing and Services. Springer-Verlag New York

Root, 2003. Sensitivity Analysis Definition. Available online at http://www.investopedia.com/terms/s/sensitivityanalysis.asp, Accessed on May 31, 2016

Sirisuwon, A. 2009. Programming in Optimization Scheduling of Ready Mixed Concrete. Thesis. Khon Kaen University

Srichandum, S., Rujirayanyong, T., 2010. Production Scheduling for Dispatching Ready Mixed Concrete Trucks Using Bee Colony Optimization. American Journal of Engineering & Applied Sciences, Volume 3(1), pp. 7–14

Budsaba, S., 2011. The Production Scheduling Generation with Heuristic Methods: Case Study VIPHAT CO., TH. Silpakorn University

Pintaruk, W., 2010. Application of Single Machine Scheduling Technique for Chemical Process. King Mongkut’s University of Technology North Bangkok

Yan, S., Lai, W., Chen, M., 2008. Production Scheduling and Truck Dispatching of Ready Mixed Concrete. Transportation Research Part E: Logistics and Transportation Review, Volume 44(1), pp. 164–179