Under the effects of alcohol, the stopping distance...

Alcohol causes an increase in the driver's reaction time, meaning it takes longer to react to any unexpected event. As a result, the distance travelled from the moment the driver perceives a sign or hazard until they act on the vehicle's controls increases. In this way, braking occurs later and the distance covered until the vehicle stops — the stopping distance — is greater. Let us remember that the stopping distance is the sum of the reaction distance plus the braking distance.