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

  • ULEZ: is it the best way to tackle air quality?
    August 31, 2023
    Issues of equity and economics need to considered in London's ultra-clean air zone expansion
  • Vivacity demos AI junction control
    March 18, 2021
    How will AI-controlled junctions help smooth the journeys of drivers – and cyclists - in urban areas? Alan Dron looks at an expanding scheme in Manchester, UK, which aims to find out
  • Vaisala's RoadAI can optimise maintenance
    August 20, 2019
    Alerts for natural disasters are ones that most of us would rather do without, writes Adam Hill. But the ITS industry still needs help to deal with more common meteorological issues Google Maps has added SOS alerts to its service. For those of us more used to using the phone app to navigate from a metro station to an unfamiliar restaurant, this may seem extreme. But this is not what Google has in mind. Its SOS messages are for “hurricane forecast cones, earthquake shake-maps and flood forecasts”. That
  • New thinking needed on the transportation front
    December 10, 2014
    Having spent his working life in transportation, Larry Yermack gives his views on today’s technology challenges. I remember it vividly; it was the late 80s, soon after I started as CFO of the Triborough Bridge and Tunnel Authority and I was standing mid-span on the deck of the Verrazano Narrows Bridge on a Friday afternoon.