Distracted drivers are 29X more likely to crash in work zones

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Drivers who aren’t paying attention for any length of time—whether answering a phone call, sending a text message, or getting distracted by a passenger—are 29 times more likely to be involved in a collision or near collision in a highway work zone, a new study shows.

A vehicle traveling at 55 mph covers a distance greater than a football field in five seconds. With the average text taking approximately five seconds to read, that’s at least a football field’s worth of driver inattention. Texting while driving is dangerous, and possibly even fatal, especially in a highway work zone.

The results from this study could provide recommendations on “behavioral countermeasures” to state transportation agencies and the Federal Highway Administration, which are implementing countermeasures to decrease injuries and fatalities in a highway work zone. These recommendations include better public education, laws to ban texting and driving, and policies that deter driver distractions. The results could also be used when developing new technology, such as driverless vehicles.

“Prior to our study, researchers analyzed data on work zone safety by looking at one checkbox among 70-80 different fields on a police officer’s crash report to see if the crash occurred inside a work zone,” says Praveen Edara, a professor of civil and environmental engineering at the University of Missouri College of Engineering.

“Unfortunately, crash reports do not include detailed information about driver behavior prior to a crash. What’s unique about our research project is that we used naturalistic driving study data that provides information about how driver, vehicle, roadway, and environmental factors contribute to a crash. In other words, we reconstructed a driver’s actions and the surrounding environment prior to the crash from a firsthand account,” Edara says.

Researchers used data from the Transportation Research Board’s second Strategic Highway Research Program’s Naturalistic Driving Study. Researchers collected data from more than 3,000 drivers traveling more than 50 million miles from 2006-2015.

The information offers a detailed firsthand account of a driver’s interaction with the vehicle, roadway, and surrounding environment. Of the seven current Federal-Highway-Administration-funded projects using this data, the University of Missouri study is the only one using the data to specifically look at highway work zones.

“Prior to this study, we knew that narrow lanes in work zones are less safe than wider lanes and similarly, speeding in work zones is correlated with injury severity,” Edara says. “With this unique data set, it also allows us to see the responsibility the driver has in increasing work zone safety.”

The study appears in Transportation Research Record: Journal of the Transportation Research Board.

An ongoing Federal Highway Administration Strategic Highway Research Program grant funded the work.

Source: University of Missouri