EFFECT OF INDOOR ENVIRONMENTAL QUALITY ON PRODUCTIVITY

通过主观实验和实地研究，对室内环境质量对生产力的影响进行了评价，并开发了评价工具。概述了室内环境质量对生产力影响的评价方法。室内环境质量与生产力关系的定量数据积累，使建筑业主或企业管理者认识到促进室内环境质量改善的重要性。在控制室中，被试可能在短时间内处于高动机状态，因此很难发现表现的差异。本研究不仅对任务表现进行评估，还对疲劳、精神负荷、SBS症状等“人类反应”进行评估。作为客观评价方法，近红外光谱法测量受试者的脑血流量。室内环境因素的目标是热环境、风速、湿度、室内空气质量、声、光环境。人体反应的评价有助于室内环境质量对生产力影响的评价方法。在主观实验的基础上，进行了实际办公室的实地研究。在对呼叫中心工作人员生产力的实地调查中，不仅分析了工作绩效数据，还分析了工作人员的疲劳程度。利用个人数字助理（Personal Digital Assistant）设计了一个简单的办公人员响应数据采集系统，记录了办公人员的疲劳、精力和对室内环境的投诉情况。使用该系统，方便快捷地获取用户对室内环境的要求。通过网络系统收集大量的请求，有助于进一步改善办公环境。

Subjective experiments and field study are conducted to evaluate the effect of indoor environmental quality on productivity and to develop the evaluation tool for it. The outline of evaluation methods of the effect of indoor environmental quality on productivity is discussed. Accumulation of quantitative data concerning on the relationship of indoor environmental quality and productivity convince owners of buildings or business manager of the importance of promotion improvement of indoor environmental quality.In the controlled chamber subjects may be highly motivated for short time period, so it is very difficult to find the difference of performances. In this study, not only task performance, but also "Human Response" such as fatigue, mental workload, SBS symptoms are evaluated. As the objective evaluation methods, the cerebral blood flow of subjects is measured by near infrared spectroscopy. Targets of indoor environmental factors are thermal environment, air velocity, humidity, indoor air quality, sound, and light environment. Evaluation of human responses are useful for the evaluation method of the effect of indoor environmental quality on productivity.Additions to the subjective experiments, the field studies in the real offices were conducted. In the field survey on productivity of call-center workers, not only performance data but also fatigue levels are analyzed. A simple system collecting data of office workers' responses with Personal Digital Assistant via web was invested and the occupants' fatigue, vigor and complaints on indoor environment were recorded. Using this system, it was handy and easy to get occupants' requests about indoor environment. The method of collecting a large quantity of requests through network system is useful for further improvement of office environment.