What is typically communicated to pilots regarding their flight plans?

The statement that pilots can proceed as filed unless instructed otherwise accurately reflects standard air traffic control procedures. This means that once a flight plan has been filed and accepted, pilots are generally permitted to fly along the route they specified unless air traffic control provides them with new directions. This helps ensure efficiency in air traffic management and allows pilots to maintain their planned course unless there are safety concerns or airspace restrictions that necessitate a change.

Communication regarding flight plans is designed to balance the needs of air traffic management with the operational preferences of pilots; hence, the option emphasizes that pilots should follow their filed plans unless they receive a clear instruction to make a change. This practice supports the orderly flow of air traffic and aids in maintaining situational awareness for both pilots and air traffic controllers.