Physiological and Management Factors Affecting Field Productivity.

Chapter 2 reviewed worker physiology and metabolism and the susceptability of the labor force to environmental conditions. The impact of temperature, altitude and air quality was discussed. The nature of task difficulty and posture as the affect the workers ability to perform work was examined. Chapter 3 reviewed various management factors including leadership participative decision making planning, scheduling and communication and motivation. The qualitities of a successful leader were discussed as they apply to todays worker. The relatively new idea of participative decision making was examined. This approach opens the decision making process to the lower levels of the construction organization. Chapter 4 cited problems in measuring jobsite productivity and common methods used in the industry today. Methods examined include work sampling, time-lapse photography, cost estimates, key activities and ratings. A field study using key activity and modified work sampling techniques was presented. Next, a review of a Field Labor Control System currently in use in the industry was analyzed. The operation and benefits of this system were discussed.