Study: Texting, driving more dangerous than expected

LOS ANGELES

According to researchers, reading or writing a text message behind the wheel doubles a driver's reaction time.

Experts said the normal reaction time is one to two seconds. However while texting, it doubles to three to four seconds.

The Texas Transportation Institute study is the first published work in the U.S. to examine texting while driving in actual vehicles, rather than in simulators.

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