Pop quiz: On an average trip, on a typical trip, how many seconds per mile is a driver distracted: 0.36 seconds, 2.67 seconds, or 5.83 seconds? Read on, the answer is below.

Data collected from more than 65 million trips over a period of six months revealed that distracted driving occurred during 36.1 percent of trips nationwide, up 5 percent from a year earlier. That's according to Cambridge Mobile Telematics, founded in 2010 by two MIT professors.

Drivers spend more time distracted on local roads than on highways. Credit:  WIkipediaDrivers spend more time distracted on local roads than on highways. Credit: WIkipediaThe firm's smartphone app collects data and provides tips for drivers to improve their on-the-road performance by measuring five driving behaviors: phone use while driving, at-risk speeding, hard braking, harsh acceleration, and cornering. The most recent data collected showed several patterns of distracted behavior, including:

  • The evening commute has the greatest amount of distraction, with 38 percent of trips exhibiting distracted driving behavior between 4 p.m. and 6 p.m.
  • Most distractions occur at speeds of 30 – 40 miles per hour.
  • Drivers spend more time distracted on local roads (57 percent of the time) than on highways (43 percent of time).

Cambridge Mobile also compared distracted driving behaviors eight cities: Boston, Chicago, New York, Los Angeles, Washington D.C., Houston, Philadelphia, and San Francisco. It found that all exhibited more than the national average of time spent distracted while driving with an average of 11 percent more time distracted per trip (the national average is 36.1 percent). The study also found:

  • Houston and Philadelphia had the highest percentage of trips with distraction with 39.99 percent and 39.97 percent, respectively.
  • Philadelphia (3.77 seconds), Boston (3.4 seconds) and Washington D.C. (3.39 seconds) had the longest average length of distraction time per mile.
  • New York, Los Angeles and San Francisco were the only cities that came in under the national average of trips with distraction, with 32.9 percent of trips, 33 percent and 33.4 percent, respectively.

April is "Distracted Driving Awareness Month" and aims to highlight the "epidemic of technology-related distraction that plagues drivers across the United States,” says Hari Balakrishnan, Chief Technology Officer.

The answer to our pop quiz? According to Cambridge Mobile, the average length of distraction time per trip is 2.67 seconds per mile. Pull over and tweet that!