I have though about the phoning and driving thing, and I believe I have figured out why it is so dangerous. People have talked on CB radios, HAM radios, and even with passengers within the vehicle for years without too much of a problem. Police and other rescue workers have always talked on radios too. Why is the cell phone causing so much problems? Debate has ensued about this, and it's usually the argument as to why people should be allowed to talk on the phone. The flip side of the phone argument (Ha...a pun!) is that users of cellular phones typically engange in more mind-intense conversations, like business and things, versus the typical user of say, a CB radio who is casually chatting.
The problem is not the conversation, it's the phone, and it's technology! Lets look at how a cell phone works... It digitizes audio sounds, and turns them into computer data that can then be handled through data networks, and other information systems. Now, why is cell phone service so cheap? It's because you can cram a more calls on a tower today than you ever have been able to in the past. So, why can you cram more calls on a tower? Two things...Data compression, and reduced RF power.
First, the data compression. When the cell-phone receives your voice into it's microphone, and it's converted to computer data, it's also compressed, to reduce the bandwidth needed. Less bandwith means more calls per tower. Compressing the data removes portions of the sound information that are deemed as insignificant. The brain at the other end then must replace this missing information to interpret the speech. It is usually done subconciously, but it does take brain power to do...brain power that is not being used to concentrate on the highway ahead. or any other task at hand. A cell-phone obviously doesn't have sound quality of a HiFi stereo!
The other half of the equasion is the reduced RF power of modern phones. This is done not only to make phones smaller, but to reduce their footprint. More calls can be made when cell phones are occupying a smaller "footprint" In other words. Other cell phone users can be on your same frequency, but if they are far enough apart that they won't receive each other, there's no interference. By reducing the power, and increasing the cell towers, you can inrease the total amount of users in a city. The problem with reducing phone's power is that it also reduces it's performance. The connections break up and distort frequently. Again, your brain must put together the missing components of the conversation, and again, it takes brain power to do that, both subconcious, and conciously. We've all had a phone break up, and you know how challenging it is to interpret what is being said.
I am quite suprised this argument has NOT been ever brought up in the Phoning while driving debates...It seems pretty obvious...but then again, those debtating it are not aspies