@Ticomaya,
Sorry, that was badly written.
The number 1 cause of all accidents is driver error or reaction 65% - namely failure to look, loss of control - leaving no exit, failure to judge oncoming traffic speed/or lane, poor turning - over correction.
This is true regardless of whether or not you are talking on a phone. But, if you are on a phone, you are 23% more likely to get into an accident.
Then driving too fast for the conditions, taking a corner too sharply, not stopping for lights or signs. Speed -accounts for about 14% of all accidents.
Driver inexperience also takes a big chunks of the causation pie.
20% of all accidents are caused by distracted driving.
The number 1 cause of all distracted driving accidents is cell phones. The second would be impairment.
These stats change when you look at fatalities and serious injuries though.
In N. America, cell phones are a contributing factor in 1/3 of fatalities and serious injuries. I'll give you bluetooths are much safer than hand helds or texting, but... it's still a distraction. And rarely is a phone call more important than the task at hand.
Most cars on the road today come with a black box. All phones come equipped with a time stamp amongst other bits of telling information. At the scene of an accident, especially a fatality, it's common practice to surrender your phone.
With the proliferation of cameras and other forensic tools, and witnesses, trust me, you can get a pretty accurate picture of what took place before an accident.
Most accidents are usually caused by three mistakes, or three preventable actions, regardless of whether they happen at home, in a work place, or in a car. To use a classic example, the step ladder. Guy puts up the ladder with nobody to watch, he climbs up and steps on the top rung, and realizes he doesn't have the right tool - poor planning, loses focus, makes a sudden turn, down he goes, boom.
Vehicle accidents have been studied to death, all over the world... There is a vested interest in finding out the causes of accidents. I see the stats all the time. You don't have to believe me. I could care less.
I can tell you that the death/injury rate in the western world is declining even though the number of cars is increasing. Cars and roads have improved and more safety features will be implemented. However, the declining rates have stagnated and cell phones are being blamed for it. Not talkative passengers. Not children or pets. Not radios or food. Those variables haven't changed and wont.