A texting pickup truck driver who caused a deadly highway pileup in Missouri last year is causing federal accident investigators to take a hard look at the use of distracting devices behind the wheel.

The National Transportation Safety Board will lay out information gathered in its investigation over the past year and a half at a meeting Tuesday to decide the cause of the accident and make safety recommendations.

The board says a 19-year-old driver was texting just before his pickup crashed into the back of a tractor truck, beginning a chain collision. The pickup was rear-ended by a school bus, which in turn was rammed by a second school bus.

The pickup driver and a 15-year-old student on one of the school buses were killed. Thirty-eight other people were injured in the Aug. 5, 2010, accident near Gray Summit, Mo.

Nearly 50 students, mostly members of a high school band from St. James, Mo., were on the buses heading to the Six Flags St. Louis amusement park.

Accident investigators are seeing texting, cell phone calls and other distracting behavior by operators across all modes of transportation with increasing frequency, NTSB Chairman Deborah Hersman said. It has become routine for investigators to immediately request the preservation of cell phone and texting records when they launch an investigation, she said.

In the last few years the board has investigated a commuter accident that killed 25 people in California in which the train engineer was texting; a marine accident in Philadelphia in which a tugboat pilot was talking on his cellphone and using a laptop; and a Northwest Airlines flight that flew more than 100 miles past its destination because both pilots were working on their laptops.

"This is trending very hot and it's a growing concern for the NTSB," Hersman told The Associated Press.

The board has previously recommended bans on texting and cell phone use by commercial and beginning drivers, but it has stopped short of calling for a ban on the use of the devices by adults behind the wheel of passenger cars.

The problem of texting while driving is getting worse despite a rush by states to ban the practice, Transportation Secretary Ray LaHood said last week. In November, Pennsylvania became the 35th state to forbid texting while driving.

About two out of 10 drivers overall -- and half of American drivers between 21 and 24 -- say they've thumbed messages or emailed from the driver's seat, according to a survey of more than 6,000 drivers by the National Highway Traffic Safety Administration.

And what's more, many drivers don't think it's dangerous when they do it -- only when others do, the survey found. At any given moment last year on America's streets and highways, nearly 1 in every 100 car drivers was texting, emailing, surfing the Web or otherwise using a handheld electronic device, the safety administration said. And those activities spiked 50 percent over the previous year.

The agency takes an annual snapshot of drivers' behavior behind the wheel by staking out intersections to count people using cellphones and other devices, as well as other distracting behavior.

(Copyright 2011 by The Associated Press. All Rights Reserved.)

More From New Jersey 101.5 FM