A Review Paper on Construction Site Layout Planning Amrutraj Dilip Patil Department of Civil Engineering Padmashree Dr. D. Y. Patil Institute of Engineering and Technology Pune, Maharashtra, India Deepa A. Joshi Asst. Professor, Department of Civil Engineering Padmashree Dr. D. Y. Patil Institute of Engineering and Technology Pune, Maharashtra, India Abstract- Site space is limited resource where all temporary facilities are to be provided within boundary of construction site. In India site layout planning is mostly a neglected aspect. For site layout planning various techniques are used such as Genetic Algorithm, Simulation techniques and Ant colony. In this study Genetic Algorithm is discussed in detail. This work also focuses on the various software being used for the site layout problem. The review of literature for various aspects other than economy is presented this paper. Keywords – Site layout planning, Genetic algorithm, Temporary facilities, Proximity weight. I. INTRODUCTION Site space is a resource that is as important as money, time, material, labor, and equipment .Site space is a limited where all facilities are required to be provided within the boundary of the site. Ideal site layout is one where the cost of the product is kept to minimum, with a large market share, the least risk and the maximum social gain. Generally utilization of site space is based on project managers experience and proper site planning is neglected. Good site layout, however, is important to promote safe and efficient operations, minimize travel time, decrease material handling, and avoid obstructing material and equipment movements (Tommelein et al. 1992b). Site layout planning problem is defined as the problem of identifying the number and size of temporary facilities to be laid out, identifying constraints between facilities, and determining the relative positions of these facilities that satisfy constraints between and allow them to function efficiently (Zouein et al. 2002). Site layout planning is essential for a productive construction project because estimated profit margins are small, the relative efficiency of the construction site can influence the profitability of the project. Temporary facilities vary in different projects and may include construction equipment warehouse maintenance shops batch plants residential facilities fabrication yards , lay down areas, offices and parking lots (Tommelein 1992a ; Sebt et al. 2008) As per FIDIC (Fédération Internationale Des Ingénieurs – Conseils ) document around 10% amount of total project cost is paid by client for site mobilization. Site layout planning is one of the important part of site mobilization. Site layout planning is a main resource which allocates site space for temporary facilities which require for construction. Site layout planning will improve work efficiency and minimize the material handling cost. II. DIFFERENT TOOLS AND TECHNIQUES For site layout planning problem has been solved by researchers using different techniques like Genetic algorithm, Simulation techniques and Ant Colony Optimization technique (ACO). Simulation techniques Capabilities of simulation in modeling availability of resources as well as idleness, production rate and productivity of equipment and labors facilitate the consideration of interaction between activities. The advantage of model is the International Journal of Innovations in Engineering and Technology (IJIET) Vol. 3 Issue 2 December 2013 233 ISSN: 2319 – 1058