The document summarizes chapter 20 from the book "Construction Methods and Management, 8th ed." by S. W. Nunnally. The chapter discusses improving productivity and performance in the construction industry through work improvement techniques like time studies, flow process charts, layout diagrams, and crew balance charts. It also examines quantitative management methods such as linear programming and the use of computers and advanced technologies in construction projects and equipment. The chapter concludes by discussing recent trends in automation and potential future developments in the construction field.