quote: It's already illegal to drive with blood alcohol over .08%, but I'm willing to bet that the vast majority of fatalities are caused by people whose blood alcohol is far higher than that.
quote: The laboratory and driving simulator research described above provides insights into alcohol ’s effects on general performance; however, with respect to safety, studies that consider the relationship between BAC and crash risk can provide useful information to guide policy. One of the earliest and best known studies of the effects of BAC on crash risk was the Borkenstein Grand Rapids study, a case - control study conducted in the early 1960s (Borkenstein and others 1964). The Borkenstein study showed an increased risk of crashes beginning at a BAC of 0.04. At a BAC of 0.08, risk was nearly doubled, and at 0.10, it had increased six fold. The Borkenstein study also found a “dip” in risk at very low BAC levels; 23 however, subsequent replications have indicated that the dip was a statistical anomaly (Hurst , Harte, and Frith 1994, 647 – 54) and that risk increases continuously beginning at a BAC of 0.01. More recent studies have shown that risk is significantly higher when a driver’s BAC is = 0.05, and that crash risk climbs rapidly at BAC levels that exceed 0.08. One study found that the risk of fatal crash involvement at BACs between 0.05 0 and 0.079 ranged from about 3 to 17 times greater, depending on the age of the driver and the type of fatal crash (single - vehicle versus all crashes) ( Zador , Krawchuk, and Voas 2000, 387 – 95 ). Another study found that at a BAC of 0.05, drivers are 1.38 times more likely to be in a crash than are sober drivers. At a BAC of 0.08, crash risk is 2.69 times higher ( Compton and others 2002; Blomberg and others 2005). These elevated risks grow even higher as BACs increase, with the risk of being in a crash rising to nearly 5 times higher by a BAC of 0.10. Figure 4 depicts relative crash risk by BAC level from this study.
quote: And their stated goal is zero impairment.
quote: I see nothing in the source article that defines that term, and nothing that can be used to say "People with a BA level above 0.05 and below 0.08 kill X number of people each year in accidents."
quote: At .08, you are impaired but it's not that significant
quote: Although lowering the per se BAC threshold may seem counterintuitive when the majority of alcohol - impaired drivers in fatal crashes have BAC levels well over 0.08, research on the effectiveness of laws limiting BAC levels (Hingson, Heeren, and Winter 1996; Wagenaar and others 2007) has found that lowering the per se BAC limit changes the drink - driving behavior of drivers at all BAC levels. Consequently, reducing the per se BAC limit could reasonably be expected to have a broad deterrent effect, thereby reducing the risk of injuries and fatalities from crashes associated with impaired driving.
quote: The psychological effect is something I hadn't considered, but it's not something that can be predicted effectively either, just "estimated". The only way to really know the impact of that aspect would be to implement the law...
quote: I think they should raise the tobacco and alcohol age.
quote: I even the driving age from 16 to 18.
quote: You have plenty of people driving around with suspended licenses due to alcohol or other related charges. The cops simply can't do everything.
quote: Way to put bars and restaurants out of business. .05 could be a single micro brew these days. What's the point of going out if you can't even drive home anymore?
quote: How about we just allow drivers to take rigorous tests that prove they can drive safely at a certain BAC and then grant privileged licenses as such? I could house a case of beer and still drive better than 99% of the moron drivers out there.
quote: I agree. I had a buddy back in the day who could be piss drunk but some how managed to drive no different then he was sober. I would like to see evidence of how many drunk driving crashes are caused due to high speeds. The majority of the time that I here a drunk driver caused a crash it is because of speed.
quote: do believe if you kill someone while driving drunk, you should be executed. Same as you should be executed for killing anyone intentionally any other way
quote: .08% gets license permanently suspended - no exceptions
quote: You could rinse with listerine for a minute and blow a .05.
quote: On the other hand, products such as mouthwash or breath spray can "fool" breath machines by significantly raising test results. Listerine mouthwash, for example, contains 27% alcohol. The breath machine is calibrated with the assumption that the alcohol is coming from alcohol in the blood diffusing into the lung rather than directly from the mouth, so it applies a partition ratio of 2100:1 in computing blood alcohol concentration—resulting in a false high test reading. To counter this, officers are not supposed to administer a PBT for 15 minutes after the subject eats, vomits, or puts anything in their mouth. In addition, most instruments require that the individual be tested twice at least two minutes apart. Mouthwash or other mouth alcohol will have somewhat dissipated after two minutes and cause the second reading to disagree with the first, requiring a retest. (Also see the discussion of the "slope parameter" of the Intoxilyzer 5000 in the "Mouth Alcohol" section above.)