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

  • What are AVs doing in rural Ohio?
    March 29, 2023
    Autonomous vehicle pilots so far have been typically sighted in urban areas. But researchers in rural regions of Ohio are now trying to find out exactly what benefits they could bring to the countryside
  • US incident management needs national standardisation
    January 26, 2012
    I-95 Corridor Coalition's Tom Martin discusses the state of the art in incident management and what visitors to this year's ITS World Congress can expect of the first ever Emergency Responder-Incident Management Day. Developments in incident management are driven in the main by need. A bald statement, and one which holds no surprises, it nevertheless quantifies the evolutionary process within the I-95 Corridor Coalition over the last decade and more. Spread over 16 states from Maine to Florida, the Coalitio
  • C-ITS in Europe: From vision to reality
    September 18, 2024
    While improved safety is the main aim of Europe’s emerging C-ITS network, it is not the only one. Lessons are being learned and functionality is expanding. Andrew Stone reports on progress…
  • Developments in urban traffic management and control
    February 1, 2012
    Mark Cartwright, Centaur Consulting, discusses developments in urban traffic management and control. Despite the concept of UTMC (Urban Traffic Management and Control) having been around for some years now, there remains a significant rump of confusion as to its relationship with its similar-sounding cousin UTC (Urban Traffic Control). To many people, the two are one and the same. However, this is not the case.