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

Related Content

  • US pedestrian deaths highest since 1988, says GHSA
    March 13, 2020
    The Governors Highway Safety Association (GHSA) said that 6,590 pedestrian fatalities occurred in the US during 2019 - the highest number in more than 30 years. 
  • Positive results for New South Wales camera enforcement
    July 20, 2016
    The New South Wales government’s 2015 speed camera review shows that speed cameras continue to deliver positive road safety benefits, say the report’s authors. Overall, the trend in road fatalities and annual speed surveys shows that the mobile speed camera program continues to deliver positive road safety benefits, compared with results before the reintroduction of the mobile speed camera program in 2010. The 2014 road toll of 307 fatalities on NSW roads is the lowest annual figure since 1923. This i
  • Are truck bans the wrong move in the battle for air quality
    June 29, 2016
    Low emission zones and heavy goods vehicles’ access to city centres may at first glance appear attractive but how effective are such controls? Jon Masters reviews emerging trends across Europe. Around 1,700 European cities have implemented low emission zones (LEZs) and in addition some have restricted city centre access for heavy goods vehicles (HGVs). Even those that restrict HGV access, such as Paris and Rome, allow exemptions at certain times and for particular classes of vehicle. But with what effect?
  • Last call for Canberra drivers
    November 23, 2022
    Australian capital aims to crack down on motorists using their phones at the wheel