Skip to main content

Mobile phones & driving & the rules of distraction

Making it illegal to hold your mobile phone while driving is designed to increase road safety, says Adam Hill. Cambridge Mobile Telematics has been looking at the numbers to see if it works
January 5, 2024 Read time: 3 mins
Put it down, it's the law (© Maksim Marchanka | Dreamstime.com)

Hands-free cellphone laws were passed in the US states of Ohio, Michigan, and Alabama in 2023, making it illegal to hold a phone while driving there. It’s relatively early days but Cambridge Mobile Telematics (CMT) has analysed the statistics to see whether drivers are taking any notice.

The company measures what it calls “phone motion distraction”, which happens when the phone screen is on and the phone is moving, indicating that the driver has it in their hand and therefore cannot be fully concentrated on the road ahead. The results are interesting: while CMT says that distracted driving is down in Ohio and Michigan – and more than 3,800 crashes have been prevented with new laws – it has actually increased in Alabama (see Look – no hands! below).

In some ways this fits a pattern: the company analysed another eight states that introduced hands-free legislation from 2018-21, and found that the average reduction in distraction was 13% in the first three months after the laws were introduced. However, by the end of 2022, distraction was up by 3% in these states compared to the month before the law.

 

"Every 10% increase in distracted driving raises the crash rate by 1.4%"

 

This is highly significant because CMT’s research suggests that every 10% increase in distracted driving raises the crash rate by 1.4%. This comes at a human and financial cost. NHTSA’s The Economic and Societal Impact of Motor Vehicle Crashes from 2019 shows $340 billion in crash damages from 14.2 million crashes that year, averaging $23,954 per crash.

CMT says that, while distracted driving in Alabama fell slightly in the first month, it rose after that until, by month three, it was actually higher than before the law. Interestingly, a relative lack of media coverage may have been a factor. In Ohio, there were over 130 stories published about the initial drop in distracted driving and the prevention of crashes, while state governor Mike Dewine also tweeted about the results. In Michigan, CMT says, there were more than 20 articles about the hands-free bill performance after the first month. By stark contrast, it found one article in Alabama.

Despite this, any reduction in distraction levels is welcome: CMT estimates that, in the first month, Alabama was able to prevent 70% of crashes and $1.6 million in economic damages. “While the long-term performance in Alabama isn’t in line with Ohio and Michigan, these results show that even small improvements help reduce road risk and crashes,” CMT says.

___________________________________________________________________________________________________________________________________________________________


Look – no hands!

Ohio
•    Start date: 4 April, 2023
•    Distraction 1 month before law: 1 minute and 39 seconds
•    Average distraction after law: 1 minute and 32 seconds
•    Overall distraction change: 7.5% reduction
•    Crashes prevented: 2,200
•    Fatalities prevented: 6
•    Economic damage prevented: $54 million

 

Michigan
•    Start date: 30 June, 2023
•    Distraction 1 month before law: 1:48
•    Average distraction after law: 1:34
•    Overall distraction change: 12.7% reduction
•    Crashes prevented: 1,600
•    Fatalities prevented: 4
•    Economic damage prevented: $38 million

 

Alabama
•    Start date: 16 June, 2023
•    Distraction 1 month before law: 2:05
•    Average distraction after law: 2:05
•    Overall distraction change: 0.3% increase
•    Crashes prevented: 70
•    Economic damage prevented: $1.6 million

Source: www.cmtelematics.com

For more information on companies in this article

Related Content

  • How typical?
    July 30, 2012
    Deployment of solar-powered LED road studs has provided significant cost benefits whilst reducing KSIs on notorious routes in South Africa. Can these results be replicated in other regions of the world and on less notorious stretches of road? According to Kevin Adams, Astucia's CEO, they can.
  • Australia’s Northern Territories budgets for infrastructure, transport
    May 27, 2016
    Health, education and infrastructure have received more than US$2.9 billion (AU$4 billion) in the 2016-17 budget released by the Northern Territory Government in Australia. Transport Minister Peter Chandler said “infrastructure is a high priority for the Northern Territory Government and roads, in particular, are of great importance to business, industry and the community in the Northern Territory. A total of AU$1.7 billion has been allocated to infrastructure with US$425.85 million (AU$589.6 million)
  • Travel times halve for tolling converts
    August 5, 2013
    The Port Mann Bridge in Vancouver is a prime example of how the latest ITS systems enable new infrastructures to be built and paid for while still providing additional user benefits. Vancouver has 2.2 million inhabitants and, like so many major cities, is divided into two by a river, the Frazer river. This combination makes Vancouver the second most congested city in North America and the most congested in Canada. Through the middle of the city runs the Trans-Canadian Highway 1 which crosses the Frazer Riv
  • Great (shared) mobility expectations
    December 19, 2024
    An invitation to attend Movmi's Shared Mobility Fall Masterclass changed the way Adam Hill looked at micromobility - in particular his own attitude to risk