Vehicles are less likely to aquaplane while traveling uphill, and far more likely to do so at the trough of two connected hills where water tends to pool.
Several drivers reported that standing water on the circuit made driving very dangerous, while others complained about water running over the circuit that made the cars aquaplane.
The remedy for this type of aquaplane is for the pilot to release the brakes and allow the wheels to spin up and apply moderate braking.
If all four wheels aquaplane at once, the car will slide in a straight line, again towards the outside of the bend if in a turn.
The pilot braked, but started to aquaplane.
The depth of tread remaining greatly affects aquaplaning (riding over deep water without reaching the road surface).
An unloaded trailer will aquaplane sooner than the cab pulling it.
There is no precise equation to determine the speed at which a vehicle will aquaplane.