Car Skiding Equation

Often, cars, especially the two wheel drive ones, get skided when driving above ice, snow or water. Below are the equations on skiding.

Eq.1 HighSpeed AND SuddenBrake AND SharpTurn = HighPossibilityOfSkidding
Eq.2 LowSpeed AND SlowBrake AND SlowTurn = LowPossilityOfSkidding
Eq.3 {OtherCombinationsExcept1And2} = [HighPossibility, LowPossibility].
Eq.3'. MiddleSpeed OR NormalBrake OR NormalTurn ∈ OtherCombinationsExcept1And2

Drivative1:
Eq.1 is the riskest one and Eq. 2 is the safest one. Eq. 3 lies between Eq.1 and Eq.2. If Eq. 2 is not realistic, Eq.3 should be used. Eq.3' can be referred under normal driving.

Have brake and turn may be necessary and beyond the driver's control, so the easiest to control during driving is the speed.
Derivative2:
1. Rain: DriveSpeed=MaxLimitSpeed-10
2. Snow: DriveSpeed=MaxLimitSpeed/2
3. Icy: DriveSpeed=MaxLimitSpeed/3

Since the road may be very slippery under certain conditions (snow, cold temperature freezing water to ice, rain wetting the road), extreme care should be exercised to avoid HighPossibilityOfSkidding in case of that kind of conditions.
Derivative3:
In case the skiding is happenning, try to avoid activating Eq.1, i.e. avoid the three worst cases happenning at the same time.