Under security, Nighttime driving could comply for certain skills.
Road Condition Identification
• As mentioned before, it’s almost unavailable to make accurate identification on road condition at nighttime, therefore we should advert at all times; but hard not equal to impossible, herein, we would present ways from experienced drivers.
• Though vision ability suffocated in the dark, we could identify road condition by hearing instead. Generally speaking, if vehicle velocity gets slow with engine sound gets heavy, which indicates that driving resistant force increased, vehicle may driven on soft or uphill roads. If it feels that engine sound gets slight and frequent, and also the velocity increases automatically, which reveals the driving resistant force decreased, vehicle may be on downhill road.
• Besides, optical system of human being possesses great adaptability. So even in the evening, under security, driving only with width lamp on is enough to let your eyes adapt to insufficient light, while at nighttime, with assistance of low-beam lamp, sight will be better. In addition, some experienced drivers sum up the regulation for nighttime driving “select gray area on road surface instead of the black to drive at nighttime”. It reveals that road surface is usually gray at the nighttime without moonlight, while other area is black; puddle looks brighter, pot-hole looks darker. Besides, it’s better to accumulate experience of identifying terrain by light pillar of head lamp. If light pillar gets shorter, there will be a curve or uphill road, if it gets longer, downhill road may be in front, and if light pillar is not complete, which indicates there may be pot-hole on road surface, ect.
• Light Application Tips
• Sometimes,observing the light of the coming vehicles will produce unexpected effect. For instance, when encountering intersection during driving at nighttime, it’s available to predict the driving condition of vehicle opposite with the light situation of vehicle coming from lateral road. It could be sure that vehicle is still far away from intersection if there is scattered light by the high-beam light of vehicle opposite; be ready to give way if there is bright light emitted by head lamp on treetop, wire pole or shadow wall around corner ( it most frequently happens on the T-type road crossing spot). Therefore, there is still “guides” for reference if driver adverts to observation at nighttime. Meanwhile, it could assist to identify the road condition ahead according to high-beam light. In fine day, it’s available to be sure that road ahead is even if the light emitted by high-beam lamp is straight, clear and far. And there must be crossing spot or curve road ahead if high-beam light disappears in a sudden. Also there must be cure road ahead if high-beam light swings to left and right in a vast scale; there will be slope ahead if high-beam light fluctuated up and down.
• However, sometimes exterior light could bother driver to a certain extent, thus some preventive actions should be taken. If vehicle from back emits high-beam light for long time, to void influence by light line, it’s effective to reduce the uncomfortable feeling by altering rear mirror’s angle. while vehicles encounter, driver’s vision ability will go down instantaneously under the influence of light from the direction opposite, visibility is low, at which time, driver could keep away from the direction of axial light, or wear glasses and sunbreaker will be more or less helpful for reducing vertigo feeling,
• It exists regulation to follow when driving at nighttime, ‘ select gray area to drive your vehicle instead of the black’, lamplight should be convenient for both of driver himself and others.