What document is utilized to account for lost time due to other trades during a project?

The most appropriate document used to account for lost time due to other trades during a project is the progress report. This document provides an overview of the current status of the project, including any delays or issues that may have arisen due to the activities of other trades. It typically includes details about the tasks completed, what remains to be done, and any factors that have affected the project's timeline, such as interference from other contractors or trades.

Progress reports serve as a communication tool between various stakeholders, including project managers, contractors, and clients, highlighting not just the progress made but also the challenges faced. By noting lost time specifically due to other trades, project managers can better understand the overall impact on the project timeline and can use this information for future planning and decision making.

While daily logs may also document delays, they are more focused on day-to-day activities rather than providing an overview of progress over a longer period. Change orders generally pertain to modifications in the project scope, and work orders are specific instructions for tasks to be completed, not for tracking delays. Therefore, the progress report is the most effective means of documenting and communicating overall project delays caused by other trades.