2015 CSCE Annual Conference Regina - Building on our Growth Opportunities

2015 CSCE Annual Conference Regina - Building on our Growth Opportunities Conference


Title
Freeform-based Construction Site Layout Optimization


Author(s)
Mr. Ibrahim Abotaleb, The American University in Cairo (Presenter)
Dr. Khaled Nassar, American University in Cairo
Mr. Osama Hosny, AUC
Abstract

Traditional approaches to the construction site layout problem have been focused mainly on rectilinear facilities where the importance proximity measures are mainly based on Cartesian distances between the centroids of the facilities. This is a fair abstraction of the problem. However, it ignores many practical and real-life aspects of the construction site layout. Firstly, the proximity importance may be based on different measures rather than a simple centroidal distance. Secondly, many facilities on the construction sites will assume non-rectilinear shapes that allow for better compaction within tight sites. The main focus of this research is to develop a practical real-life construction site layout tool that uses freeform shapes for the facilities, specifically splines, and introduces different proximity importance measures. The freeform nature of the construction site facilities allows for better compaction of these facilities in restricted sites. The new proximity importance measures take into consideration actual movement between the facilities including any passageways or access roads on the site. The problem is formulated as a genetic algorithm problem and solved using a commercial optimizer. At the end, a software tool is developed that uses a commercial parametric modeling tool (Rhino and Grasshopper) and examples are provided.