Laws which forbid texting while driving have been found to be quite useless and may even be counter-productive, according to a study.
The nonprofit Highway Loss Data Institute (HLDI) said Tuesday that its research found no reduction in auto crash claims after bans on texting while driving went into effect in four US states.
Such regulations are the law of the land in a majority of the country's 50 states, as well as in Washington DC, the first jurisdiction to enact such a ban.
"Texting bans haven't reduced crashes at all. In a perverse twist, crashes increased in three of the four states we studied after bans were enacted," said Adrian Lund, president of the HLDI.
"It's an indication that texting bans might even increase the risk of texting for drivers who continue to do so despite the laws," he said.
The findings were presented at an annual meeting of the Governors Highway Safety Association.
Lund surmised that the reason crashes increased after the bans is that drivers engaged in even riskier behavior by surreptitiously texting behind the wheel.
"Clearly drivers did respond to the bans somehow, and what they might have been doing was moving their phones down and out of sight when they texted, in recognition that what they were doing was illegal," he said in a statement.
"This could exacerbate the risk of texting by taking drivers' eyes further from the road and for a longer time," Lund said.
The research tabulated the number of collision claims in various US states, including California, Louisiana, Minnesota and Washington state, immediately before and immediately after bans on texting while driving went into effect.
Lund said the findings "call into question the way policymakers are trying to address the problem of distracted driving crashes," Lund added.
He noted that in its earlier research, his car insurance industry group found that banning handheld cellphones also failed to reduce car crashes.