Skip to Content
Streetsblog USA home
Streetsblog USA home
Log In
Distracted Driving

Study: Drivers With Smart Phones Use Them Almost Every Time They Drive

New research monitoring cell phone use while driving suggests the scale of motorist distraction is off the charts.

Motorists with smart phones use hand-held devices in 88 out of every 100 trips, according to data collected by Zendrive, a company that assesses driving behavior using the sensors in smart phones. More than three quarters of drivers -- 77 percent -- have smart phones. Extrapolating to the entire population, Zendrive estimates there are about 600 million trips involving distracted driving in the U.S. each day.

Nationwide, traffic deaths have risen at an alarming rate in recent years, and cell phone use is often cited as a potential culprit, but data is limited. Federal agencies including the CDC and the NHTSA have estimated that distracted driving is a factor in about one in 10 traffic deaths annually. But the research from Zendrive indicates the extent of the problem may be much larger.

The dataset was collected over 90 days from 10 billion miles driven by 5 million motorists with Zendrive's tech running on their devices, including both professional drivers and non-professionals.

Prior research has determined that taking your eyes off the road for as little as two seconds can make a collision four to 24 times more likely. The Zendrive data suggests drivers often engage in several distracting incidents in a single trip. During an average one-hour trip, drivers spent 3.5 minutes using their phones. (Zendrive counted only "digital manipulation" of phones, not hands-free use, though the company acknowledges that hands-free use also impairs cognition while driving.)

Oregon was the least distracted state and Vermont was the most. In Vermont, drivers spent an average of 7.5 percent of driving time texting or using apps on their phones. In Oregon, it was about 3.5 percent.

Some federal safety regulators have pushed for safeguards that allow drivers to voluntarily disable certain smartphone functions while behind the wheel, but the consumer electronics industry has pushed back.

State laws banning the use of hand-held phones while driving may have an effect. There are 16 states with such bans in effect, and six of those states are among the 10 least-distracted in Zendrive's dataset. However, Vermont, the most distracted state, also has a cell phone ban.

Vermont was the most distracted state. Oregon was the least. Map: Zendrive
Vermont was the most distracted state, Oregon was the least. Map: Zendrive
Vermont was the most distracted state. Oregon was the least. Map: Zendrive

Stay in touch

Sign up for our free newsletter

More from Streetsblog USA

Monday’s Headlines Bring Another Setback

The Biden administration's new rule requiring states to report their greenhouse gas emissions from transportation was dealt another blow when the Senate voted to repeal it.

April 15, 2024

‘The Bike Is the Cure’: Meet New Congressional Bike Caucus Chair Mike Thompson

Meet the incoming co-chair of the congressional bike caucus — and learn more about how he's getting other legislators riding.

April 15, 2024

Calif. High-Speed Rail Takes a Step Towards Acquiring Trains

The contract calls for two prototype trainsets for testing to be delivered by 2028, and four trainsets to be used on the "early operating segment" between Merced and Bakersfield, ready between 2030 and 2033.

April 12, 2024

Friday’s Headlines Are Still Unsafe

Traffic deaths are declining for those ensconced in thousands of pounds of steel. For the rest of us, not so much.

April 12, 2024

Measure HLA Is Now Officially Law for L.A. City

Check the city maps to find what bus, bike, and walk improvements are coming to streets in your neighborhood.

April 12, 2024
See all posts