All rights reserved by www.ijaresm.net ISSN : 2394-1766 1 ASSESSMENT OF FACTORS AFFECTING THE LABOUR PRODUCTIVITY IN BUILDING CONSTRUCTION PROJECT Rajen B. Mistry 1 , Vyom B. Pathak 2 , Neeraj D. Sharma 3 , Rushabh A. Shah 4 PG, Student, Civil Engineering, SNPIT & RC, Umrakh 1 Assistant Professor, Civil Engineering Department, SNPIT & RC, Umrakh 2 Professor, Civil Engineering Department, S.N.P.I.T & R.C, Umrakh 3 Assistant Professor, Civil Engineering Department, SNPIT & RC, Umrakh 4 Abstract: Labour productivity is one of the least studied areas within the construction industry. Productivity improvements achieve higher cost savings with minimal investment. Productivity plays an important role in the construction industry. It helps construction industries to be competitive, to achieve goals and to meet the stakeholder and value propositions. Due to the fact that profit margins are small on construction projects, cost savings associated with productivity are crucial to becoming a successful contractor. The chief setback to improving labour productivity is measured labour productivity. The main objective of this study is to find critical factors affecting labour productivity. A survey was carried out in south Gujarat region cities, on civil contractors. The above objectives have been achieved through the analysis of questionnaires and the result of this analysis shows that, there are 10 main groups which have significant impact on the labour productivity variation in the construction projects. They are Technological, Manpower group, Managerial group, Material/Equipment group, External group, Environmental group, Motivational group, Schedule group, Safety group and Quality group. Keywords: labour productivity. INTRODUCTION Construction is the world's largest and most challenging industry. Human resource today has a strategic role for productivity increase of any organization, and this makes it superior in the industrial competition. With the effective and optimum uses of it, all the advantages supplied by the productivity growth can be obtained. Construction is a key sector of the national economy for countries all around the world, as traditionally it took up a big portion in nation’s total employment and its significant contribution to a nation’s revenue as a whole. However, until today, construction industries are still facing number of problems regarding the low productivity, poor safety and insufficient quality. Labour productivity is simply defined as the amount of goods and services that a labourer produces in a given amount of time (Al-Saleh 1995). It is one of the very important issues in construction industry since it affects the time and cost performances of any construction project (Al-Saleh 1995). Liu and Ballard (2008) stated that labour productivity plays a critical role in determining the financial success of a project. In most of construction projects, labour costs account for be- tween