They are never parked on the runway . They park on taxiways designated for parking.
Helicopters, a Harrier Jet
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If a jet is parked on a runway, its inertia will resist any attempts to move it. Inertia is the tendency of an object to resist changes in its state of motion, including staying at rest if stationary. Therefore, the jet will stay parked on the runway until a force is applied to overcome its inertia and initiate motion.
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Terminal or simply parking or tarmac
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They can be found in area 69 near the runway in the desert. They can be found in area 69 near the runway in the desert.
Helicopters can land on a normal runway although they don't always have to touch the ground, a helipad is specifically designed for a helicopter.
That is called the maintenance apron.
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