Solid waste management from BTS Sky train construction (a perspective of contractors)

Abstract

The purpose of this research paper is to study the solid waste management to the following 3 lines of BTS Sky train construction projects: blue line,red line, and violet line.The study was carried out by distributing questionnaires to 22 randomly selected contractors on the site from Sino-Thai Engineering and Construction Plc., CKTC Joint Venture Co., SH-UN Joint Venture Co., and Unique Engineering and Construction Plc. The results of the survey showed that an average quantity of solid waste during the commencement ot the project and reached to x=2.54,SD=0.80 during construction period. However, the quantity lf solid waste was higher upon the termination of the project X=1.97, SD=0.72. For some managers, the problems of solid waste were caused by planning and policy maling, such as too much rush work, unsuitable material management area, and misleading materials planning. The other contributors to the problem were traced from operators' material transportation to the site. Workers have a lack ot the expertise to work. Supervisors have a lack of monitoring and supervisory work. Supervisors' training on waste management played a vital role in promoting solid waste management(X = 3.44, SD = 0.73).