讨论小型基础设施项目PDRI的需求和开发，这是一种在前端规划期间使用的风险管理工具。解释该工具的40个要素如何以加权清单格式呈现，以及如何使用它来衡量较小项目的项目范围开发的完整性。注:实际工具包括在IR314a-2中。

Discusses the need for and development of the PDRI for Small Infrastructure Projects, a risk management tool for use during front end planning. Explains how the tool's 40 elements are presented in a weighted checklist format, and how to use it to measure the completeness of project scope development on smaller projects.NOTE: Actual tool included with IR314a-2.