What is the primary purpose of the resource calendar?

• A. To specify resource availability.
• B. To define the project budget.
• C. To manage project risks.
• D. To outline the communication plan.

Answer: (A)

Resource calendars capture when people, equipment, and other resources are available to work on project activities. The primary purpose is to specify resource availability—including working days, vacations, holidays, and any time constraints—so you can assign tasks at feasible times and schedule work without overloading anyone or anything. This helps you see potential conflicts, plan around non-availability, and support realistic scheduling and resource leveling. Other areas of project management handle budgets, risks, and the communication plan, so they’re not the primary focus of the resource calendar.