Final answer:
A BAC level of .15 greatly increases the risk of crashing due to the significant impairment of judgment and motor skills. The liver metabolizes alcohol at a constant rate, with no shortcuts to sobriety, necessitating several hours to reduce BAC to safe levels. Driving at this BAC level is highly dangerous and illegal.
Step-by-step explanation:
If a person has a blood alcohol concentration (BAC) of .15, they are significantly over the legal limit for driving, which is typically a BAC of 0.08. At a BAC of .15, an individual is at a much higher risk of crashing if they decide to drive due to the impairment of judgment and motor skills caused by the alcohol. Alcohol intoxication can lead to lack of coordination, blurred vision, and significantly interferes with a person's ability to perform tasks requiring skill and judgement, such as driving.
It's important to note that alcohol metabolism is a process that occurs over time, and no quick fixes like drinking coffee or taking a shower can speed this up. The liver metabolizes alcohol at a consistent rate, which is why time is the only remedy for reducing one's BAC to a safe level. According to the metabolism rate, it would take several hours for a person with a BAC of .15 to sober up to under the legal limit.
Furthermore, excessive alcohol consumption is associated with numerous negative consequences, including a high risk of being involved in road accidents. In some estimates, alcohol is linked to up to 50% of road accidents in regions like Australia. Therefore, anyone with a BAC of .15 should not attempt to operate a vehicle and should instead seek alternative transportation.