Studies on improvement of labor productivity in construction sites using lean technique

ABSTRACT The developing countries like India have more focus on infrastructure developments and civil construction projects which is major contribution to the national economy. Delay in construction projects causes overrun which affects the country in terms of loss of revenue. Globally, many studies have been carried out to overcome wastage at construction site by implementing lean construction techniques but a very few studies have been carried out in Indian scenario. It is a way to design the minimize of wastage of materials, time, and effort in order to generate the max possible amount of value. Productivity improvement is art of doing the right things better worth and make it a part of continuous process in a construction process.So it is too important to choose a technique where the productivity can be increased by getting profit to both the organisation and to the low level member who is working on the site. Productivity has to be improved with the same resources as planed but without any waste.Labour productivity depends upon how labours are utilised. In this study the time taken by a worker involved in a task, is recorded and variation between cycle are evaluated to determine whether alternative processes would improve production rate or not. Crew balance chart are used to evaluate the work done by the worker correctly. From the analysis, some recommendations are made for improvement of labour productivity. Keyword: Lean construction, labor productivity improvement, crew balance chart