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

  • Is fare-free transit taking us for a ride?
    August 11, 2022
    More cities around the world are trialling fare-free public transit schemes. Do they work and are they sustainable? Andrew Stone puts absolutely no money on his travelcard and jumps on board
  • Autobahn shows it is on the ball
    March 25, 2022
    Germany has just created a central organisation to oversee the country’s 13,200km of motorways. David Arminas finds out about Autobahn’s role in cooperative ITS - and its part in the Euro 2024 football tournament
  • Social media a one-stop shop for travel information
    January 20, 2012
    Exponentially widening mobile phone ownership is opening up the field to new ways of obtaining and disseminating better travel information from and to public transport users, via for example social media and tracking riders' phones. Over 50 US transit agencies, including major actors such as TriMet, in the metropolitan area of Portland, Oregon, Dallas Area Rapid Transit in Texas, and San Francisco's Bay Area Rapid Transit District (BART), as well as smaller operators, now have Facebook and/or Twitter accoun
  • APA supports automated work zone speed enforcement
    July 17, 2015
    A trade association representing the highway construction industry strongly supports automated enforcement of speed limits in work zones and Maryland's experience with a similarly designed program has had very good results, the association head has told a joint Pennsylvania House and Senate committee. According to PennDOT, 24 people were killed in work-zone crashes in 2014, eight more than in 2013. Additionally, there were 1,841 crashes in work zones last year, a slight decrease from the 1,851 crashes