Analysis of Upper Unit Cost of the Water Environment Project

Abstract

The authors analyzed upper unit cost of a water environment project. To draw out representative values upper unit cost, analysis of the whisker of the box and whisker plot are effective because the center of distribution shifted to lower values and higher values contain abnormal or mistaken data. On the basis of analysis questionnaires, guide lines for the suitable upper unit project cost are given, which are project cost per acreage, construction cost of toilet, parking, per acreage, and maintenance cost per the acreage or the total project cost.