What happens when more than one plane wants to land or takeoff?
At any airport without a control tower, pilots are expected to “self-announce” their intentions, via radio, at every step. Radios are not required in aircraft when operating at small airports, but almost all planes have them. So the pilot announces that she’s about to takeoff and on which runway (13 or 31). Or she says she’s inbound for landing and she has the other airplane in sight.