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More than 41 states have laws that make it illegal to text while driving. But that doesn't stop drivers from doing it and enforcing those laws can be difficult. We sent reporter Alisa Roth out with a New York State trooper to see how it's working there.
ALISA ROTH, BYLINE: I'm on the highway north of New York City with Clayton Howell who's a New York State trooper.
CLAYTON HOWELL: See that? I can't - see, I pulled right along next to her. She looked at me. And you can see now, no directional. See how she's on her...
ROTH: Even if you're a pro, it can be really tricky to spot a driver on a cellphone.
HOWELL: Because it was in her right hand and because I didn't actually physically see the phone, I'm going to give her a break.
ROTH: We're looking for drivers who are texting or using handheld phones, and the state police has been using these unmarked SUVs like his one to try to catch drivers.
HOWELL: You can see down into the car, so you're, you know, it's a bird's-eye view as opposed to being at the same level.
ROTH: People know it's dangerous to use their phones while they drive, and they know it's illegal. And they still do it anyway. Scott Adams is an economics professor at the University of Wisconsin, Milwaukee, and he and a colleague looked at what happens when states pass texting and driving laws.
SCOTT ADAMS: What we saw was that there was an initial decline in accidents once texting bans were passed that was quite substantial. But after a few months, there was no effect.
ROTH: In other words, people stop texting and driving for a little while, and then they start doing it again pretty quickly. Adams thinks part of it is that it doesn't really matter much if you get caught. In some states, the police can't even pull you over unless you're doing something else wrong like not using your turn signal. Or the penalties are just too low. In New York, you can get pulled over for cellphone violations but the fines only start at $50. And you do get five points on your license but it takes 11 points before your license gets suspended. Drunk driving in New York, on the other hand, will cost you at least $500, and your license is automatically revoked for at least six months.
Arthur Goodwin studies distracted driving at the Highway Safety Research Center at the University of North Carolina. He says drunk driving is a good comparison.
ARTHUR GOODWIN: Decades ago, drunk driving was essentially ignored by the public.
ROTH: And then states started imposing harsher penalties and they made it clear that people who did it would get caught. And now, there's this real stigma.
GOODWIN: There isn't anything like that yet for cellphones, but at some point, society may frown on people who use cellphones while driving just the way we do with drinking and drivers.
ROTH: Back on the highway in New York, Howell, the state trooper, is chasing down those distracted drivers.
HOWELL: Now look at her driving on the dotted line there.
ROTH: One bad driver at a time.
HOWELL: See her? Now she's actually coming into my lane, no directional, engaged in her phone call. Good afternoon. Trooper Howell, New York State Police.
UNIDENTIFIED WOMAN: Hi.
HOWELL: Stopped you for operating a motor vehicle while you're using your cellphone. May I see your license and registration, please? Who were you talking to, miss?
ROTH: The driver is a young woman, and she said she'd been talking to her mother, telling her she'd call back later. She's crying, but she was caught talking and driving. And now she has to pay.
HOWELL: I'm going to issue a citation for operating a motor vehicle while using your mobile phone, OK?
ROTH: The U.S. Department of Transportation estimates that at any given time, more than 650,000 people are using their cellphones while they drive. This one just got caught. For NPR News, I'm Alisa Roth in New York.