The CM's preliminary cost estimates are generally based on the following information:

The CM's preliminary cost estimates are generally based on the following information:

• A. Preliminary project documents
• B. Detailed design drawings
• C. Construction schedule
• D. Contractor quotes

Answer: (A)

Cost estimates at this stage rely on the information that exists in preliminary project documents. These documents lay out the project program, scope, and an early concept or schematic design, which provides enough detail to estimate quantities and costs in a rough order of magnitude. They are used to gauge feasibility, budgeting, and funding decisions, recognizing that the numbers will be refined as design progresses. Detailed design drawings, a formal construction schedule, and contractor quotes come later and yield more precise estimates, so they aren’t the basis for a preliminary estimate.

Cost estimates at this stage rely on the information that exists in preliminary project documents. These documents lay out the project program, scope, and an early concept or schematic design, which provides enough detail to estimate quantities and costs in a rough order of magnitude. They are used to gauge feasibility, budgeting, and funding decisions, recognizing that the numbers will be refined as design progresses. Detailed design drawings, a formal construction schedule, and contractor quotes come later and yield more precise estimates, so they aren’t the basis for a preliminary estimate.