Drinking driving is responsible for a high proportion of traffic accidents. According to an NGO, to study the effects of alcohol on drivers and driving performance, 25 drivers’ subjective feelings and driving performance data in different blood-alcohol concentration (BAC) levels were collected with a simulated driving experiment. The investigation results revealed that alcohol affected drivers in many aspects including attitude, judgment, vigilance, perception, reaction, and controlling. The analysis of accident rate showed that higher BAC level would lead to higher accident rate. The statistical analysis results of driving performance indicated that average speed, speed standard deviation, and lane position standard deviation were significantly higher under the influence of alcohol. They also had a statistically significant linear trend as the function of BAC level. The discrimination of drinking driving based on driving performance was performed with fisher discrimination method. The results showed that drinking driving with higher BAC level was easier to discriminate from normal driving. Also, the results indicated that the three significant indicators on straight roadway could be used in the discrimination of drinking driving state. The conclusions can provide references for the study of drinking driving and the identification of driving state and then contribute to traffic safety.
In India, the permissible blood alcohol content (BAC) is set at 0.03% per 100 ml blood. That works out to 30 mg of alcohol per 100 ml of blood.
Figures will vary for everyone, but for ready reference, an average male weighing about 65 kg can theoretically stay within the legal limit if he consumes two pints of beer (equivalent to 660 ml), or one large whiskey peg (60 ml), or two glasses of wine (200 ml).
The body takes about an hour to process 29.5 ml of alcohol. Since every type of liquor has a different alcohol content to be able to drive again without your reason and coordination being affected by it, you must wait for at least 90 minutes after a pint of beer and three hours after a large whisky or two glasses of wine.
If you’re busted driving with more than this limit, you can be booked for violating Section 185 of the Motor Vehicles Act, 1988, and will have to pay a fine of 2,000 and/or face a six-months of jail term.