Threesystemsofavehiclemakeit
tobedriventothedestination.
Thesesystemsincludebrake
system,steeringsystemand
accelerationsystem.Threesystems
mustfunctionatthepositionwhere
thetyresandroadcontact.
Sometimes,forexample,drivingon
aroadcoveredwithsnoworwater,
therequirementsforthesecontrol
systemexceedthescopethatthe
tyresandroadcanstand.That
meansthevehiclemaybeoutof
control.
Vehiclecontrol
Brake
Controloperationincludessensation
timeandreactiontime.
Atfirst,youneedtodecidewhether
todepressthebrakepedal,thisis
sensationtime,andthenyoumust
liftyourfootanddepressthepedal,
attentionandjudgment.
Drinkingdrivingmayresultin
severeandevenfataltraffic
accidents.Neverdriveafter
drinkingortravelinavehicle
drivenbyadrunkdriver.
thisisreactiontime.
Averagereactiontimeisabout3/4
seconds,butthisisonlyaverage
time.Onedrivermayhavevery
shortreactiontime,whileanother
drivermayhaveareactiontimeas
longas2to3seconds,depending
onage, physicalconditions,
vigilantness,coordinationandeye
sight.
Alcohol,drugsanddejectionalso
haveimpacts.Evenifthereaction
timeis3/4second,whenavehicle
runsat100km/h,itwillalsogo
ahead 20m.Underemergent
situations,thisdistanceistoobig.
Therefore,itisveryimportantto
keepsufficientdistancewithother
vehicles.
Ofcourse,actualbrakedistance
mayvarydependingonroadsurface
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