To predict the behavior of the car on the road, the driver needs to take into account the coefficient of adhesion of the tires to the road surface, in other words, the slipperiness of the road. This factor depends on both weather conditions and the type of road surface.
Instructions
Step 1
Remember the factors that reduce the grip of your tires. This is a wet coating (puddles), oil and oil spots, sand and snow drifts, ice. They also include weather factors that increase the slipperiness of any road surface. One of the most dangerous is driving through large puddles, which can lead to the effect of aquaplaning, which reduces the traction of the wheels to zero.
Step 2
Always keep in mind that ice is a selective phenomenon. In other words, it manifests itself more often in certain sections of the route, interspersed with unfrozen places. Expect icing in the shade of trees, buildings, bridges and overpasses, and lighter traffic lanes. Always check the road for icing when the air temperature is around zero degrees.
Step 3
Pay attention to the intersection of asphalt pavement with unpaved roads. During field work, muddy roads or after prolonged rains, mud is pulled in by wheels in these places. In addition, in hot weather, asphalt releases a binder that significantly reduces traction. Be careful when driving over leaves, especially when wet.
Step 4
To check the coefficient of tire adhesion to the road while driving at low speed, lightly apply the brake or suddenly depress the gas pedal. Moreover, in order to more accurately establish the degree of slipperiness of the road, this must be done several times, each time more and more sharply. The earlier the wheels start to slip, the lower the traction coefficient.
Step 5
Reduce speed prudently on slippery roads. Avoid problem areas, if possible. Try to prevent the car from moving with some wheels on an area with good traction, and with others on a slippery surface. At the slightest sign of braking, the car may spin.
Step 6
Also remember that the coefficient of wheel traction decreases in proportion to the increase in driving speed. So at a speed of 150 km / h, the adhesion of the tires will be several times less than at a speed of 30-50 km / h. Hence the conclusion - at the very beginning of braking at high speed, the adhesion of the tires to the road is always less than at the end. It is this fact that is the reason for the nonlinear dependence of the stopping distance on speed.
Step 7
Monitor the condition and wear of the tread on the wheels of your car. The tread pattern, namely the abrasion of its protrusions, significantly reduces the coefficient of tire adhesion to the road. Tires with completely worn out tread will have the lowest grip coefficient - one third less than new ones.
