Why we should turn down the radio when we're lost? Here is the best explaination for this science facts
In 1930, the Radio Manufacturers Association lobbied that backseat passengers were more of a driver distraction than a car radio; listening to the radio, they claimed, was safer than looking in the rear view mirror. Some strongly opposed the industry's claims, arguing car radios were distracting and hazardous. Illinois, Massachusetts, New York, New Jersey and Ohio state legislatures all considered implementing car radio fines, and in 1935 Connecticut legislators actually did introduce a bill that would have placed a steep fine on radio installation — $50 in 1935, which is about $850 today. Others considered making car radio installation a crime [sources: Novak, Bureau of Labor Statistics]. It wasn't until the 1939, though, that anyone actually studied whether a correlation between car radios and car crashes existed: Car radios played little to no role in car accidents, determined the Princeton Radio Research Project. It may be one of the most awesome infor from factoflife we’ve enjoyed.
Decades ago, the Society of Automotive Engineers advised drivers follow the 15-second rule. That is, a driver can be distracted with an in-car activity, such as talking to passengers or retrieving an item from the glove compartment, for up to 15 seconds before the task becomes a visual distraction and becomes unsafe. Fifteen seconds, can you imagine? Every five seconds at 55 mph a car travels about 360 feet (107 meters), which is the length of a football field. Now multiply that by three — that's a lot of distance covered without the driver's attention and focus on driving. Today, both the National Highway Traffic Safety Administration (NHTSA) and the U.S. Department of Transportation (DOT) recommend no in-car activity take more than two seconds, else it becomes a distraction.
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