14 Use of Approximate Dynamic Programming for Effective Site Layout Yogeshwar Dhanure 1 , Sudhanshu Pathak 2 1 Construction & Management in Civil Engg Deptt, 2 Asst. Prof., Civil Engg Deptt. DYPCOE, Akurdi, Pune, Savitribai Phule Pune University, India International Journal of Research in Civil Engineering, Architecture & Design Volume 4, Issue 2, April-June, 2016, pp. 14-17 ISSN Online: 2347-2855, Print: 2347-8284, DOA: 05022016 © IASTER 2016, www.iaster.com ABSTRACT Site layout planning is an important task for the site management. Site space is a resource that is as important as money, material, labour, equipment and time. Site space is limited where all facilities are required to be provided within the boundary of the site. Construction site layout planning involves identifying, sizing and on-site-positioning of temporary facilities on site. In large project there are number of manpower, subcontractor and equipment’s are involved and if there is no effective planning that increase cost and time. At the same time safety aspect plays very important role in site layout planning. Paper presents the development of an approximate dynamic programming model which is capable of searching for and identifying global optimal dynamic site layout plans. This model use the concept of approximate dynamic programming (ADP) to find the future effects of layout decisions in early stages on future decisions in later stages. The main objective is on obtaining the closeness relationship values between each pair of facilities in construction site with consideration of maximum safety. This study will useful to construction planner and can lead to significant improvement in the safety construction operations and cost of constructed facilities. Keywords: Construction Management, Optimization, Site Layout Planning. 1. INTRODUCTION Site planning in particular, has been the most neglected aspect in construction industry and attitude of the engineer has been that it will be done as the project progress. It is important to realize that the site planning will be condition that site personnel will live with for the total duration of the construction period. Thus careful site planning is imperative. Construction site layout planning involves identifying, sizing and on-site-positioning of temporary facilities on site. In large projects there are number of manpower, subcontractors and equipment’s are involved and if there is no effective planning that increases cost and time. At the same time safety aspect plays very important role in site layout planning. Developing and maintaining an effective site layout is a significant and critical task that should be properly performed and updated during the project planning and construction phases as it can lead to 1) Reducing the cost of material handling; 2) Minimizing the travel times of labour, material and equipment on site; 3) Improving construction productivity; 4) Promoting construction safety and quality. Dynamic site layout planning models provide the capability of considering possible reuse of space, relocation of temporary facilities, and the changing space needs. Existing dynamic site layout planning models subdivide the project duration into successive stages and identify the locations of