Skip to main content

Experiment discovers ‘deadliest distractions’ at the wheel

Road safety charity IAM RoadSmart and UK car magazine Auto Express teamed up to find out which are the deadliest behind-the-wheel distractions with programming a sat-nav found to be the worst. Auto Express consumer editor Joe Finnerty and British Formula 3 hopeful Jamie Chadwick were put to the test in a professional racing simulator at Base Performance Simulators in Banbury. They were both assessed to see how they coped with the most common distracting tasks on UK roads, while completing timed laps and bra
April 28, 2017 Read time: 2 mins
Road safety charity IAM RoadSmart and UK car magazine Auto Express teamed up to find out which are the deadliest behind-the-wheel distractions with programming a sat-nav found to be the worst.


Auto Express consumer editor Joe Finnerty and British Formula 3 hopeful Jamie Chadwick were put to the test in a professional racing simulator at Base Performance Simulators in Banbury. They were both assessed to see how they coped with the most common distracting tasks on UK roads, while completing timed laps and braking at a specific point. IAM RoadSmart’s head of technical policy, Tim Shallcross, monitored the findings.

The results showed a large difference in performance between distractions. Entering a postcode into a sat-nav app proved to be the worst, followed by sending a text message. Other tasks carried out included eating, drinking, making a phone call and talking to a passenger.

The least distracting task for lap time was talking to a passenger, but it still ranked very poorly for the braking test. According to Shallcross, both drivers failed to brake accurately at the target line. He noted that their ability to drive normally confirms the difference between the extra distraction of a phone conversation and the natural act of talking to a passenger, but still shows that any distraction reduces attention, and in an emergency, it might be critical.

Related Content

  • Ability to keep in touch on US buses woos travellers
    February 1, 2012
    David Crawford finds evidence of a new trend in American intercity travel: that better access to data sources on the move is tempting passengers away from air travel and onto surface modes. In the US the ease of use of Portable Electronic Devices (PEDs) is successfully wooing long-distance travellers away from airlines and onto surface public transport, according to just-published research. Using data from field observations of 7,028 passengers travelling by bus, air and train in 14 US states and the Distri
  • Ability to keep in touch on US buses woos travellers
    February 1, 2012
    David Crawford finds evidence of a new trend in American intercity travel: that better access to data sources on the move is tempting passengers away from air travel and onto surface modes. In the US the ease of use of Portable Electronic Devices (PEDs) is successfully wooing long-distance travellers away from airlines and onto surface public transport, according to just-published research. Using data from field observations of 7,028 passengers travelling by bus, air and train in 14 US states and the Distri
  • Ken Leonard talks to ITS International
    August 21, 2014
    Ken Leonard, director of the USDOT’s ITS Joint Program office made time in his schedule during the Helsinki Congress to speak to ITS International. It has been 18 months since Ken Leonard took over as the director of the Intelligent Transportation Systems Joint Program Office at the US Department of Transportation. With 30 years of technical experience behind him, to say he is enjoying the challenge would be to put it mildly: “It is incredibly exciting to be working in intelligent transportation systems, th
  • Dynamic safe driving messages raise awareness
    October 7, 2014
    In a new effort to warn drivers to focus on the road, the Missouri Department of Transportation (MoDOT) is using its more than 250 dynamic message signs on interstates and major highways to send safety messages to drivers. The state says speeding, impaired driving, not wearing seatbelts and distracted driving are some of the leading causes of the 550 deaths to date in 2014. "Messages like ‘Put Down Your Phone and Drive, It Can Wait' or ‘Leave All Tailgating at the Game' are designed to raise awareness o