Factors affecting the labour productivity of brickwork and analyzing them using RII method

Productivity is one of the major problems which affects the duration of the project. There are many factors which affect productivity like climate, type of material, supervision etc. In the current research, the factors affecting the labour productivity of brickwork activity are identified through a literature survey and discussions with industry experts. Total 27 factors were identified and a survey questionnaire was prepared which was distributed among the site engineers to rate factors on a Likert scale from 1 to 5. To make the questionnaire simple the factors were distributed into 3 main groups such as (i) management, (ii) project specification and (iii) human and labour. The questionnaire was distributed among 130 under construction sites and data was obtained. The data analysis was done through the relative importance index and ranking of factors was done which showed results as (i) training, (ii) quality required, (iii) experience, (iv) safety training, (v) proper scheduling and (vi) over time. These top 6 factors were responsible for affecting the labour productivity of brickwork the most.