Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Contrary to Earlier Predictions, Older Driver Fatal Crashes Trend Down

15.01.2009
The number of drivers 70 and older is growing at a fast pace, and older drivers are keeping their licenses longer and driving more. Despite these trends, older driver crash deaths and fatal crash involvements are dropping at a faster pace than for younger drivers.

Despite growing numbers on the road, fewer older drivers died in crashes and fewer were involved in fatal collisions during 1997-2006 than in years past, a new Insurance Institute for Highway Safety study reports.

Crash deaths among drivers 70 and older fell 21 percent during the period, reversing an upward trend, even as the population of people 70 and older rose 10 percent. Compared with drivers ages 35-54, older drivers experienced much bigger declines in fatal crash involvements. Reasons for the fatality declines aren't clear, but another new Institute study indicates that older adults increasingly self-limit driving as they age and develop physical and cognitive impairments.

Compared with drivers ages 20-69, fewer people 70 and older are licensed to drive, and they drive fewer miles per licensed driver. However, older people now hang onto their licenses longer, drive more miles, and make up a bigger proportion of the population than in past years as baby boomers age. There were more than 20 million licensed drivers 70 and older in 2006, compared with just under 18 million in 1997. The total annual miles these older drivers traveled climbed 29 percent from 1995 to 2001, compared with a 6 percent rise among 35-54 year-olds. Per mile traveled, crash rates and fatal crash rates increase starting at age 70 and rise markedly after 80.

These trends have raised concerns about older drivers in fatal crashes. Their fragility makes them vulnerable to getting hurt in a crash and then to dying from their injuries. Physical, cognitive, and visual declines associated with aging may lead to increased crash risk.

Fatal crash involvements decline: Earlier research predicted that older drivers would make up a substantially larger proportion of drivers in fatal crashes, so "the findings are a welcome surprise," says Anne McCartt, Institute senior vice president for research, and an author of the new studies. "No matter how we looked at the fatal crash data for this age group — whether by miles driven, licensed drivers, or population — the fatal crash involvement rates for drivers 70 and older declined, and did so at a faster pace than the rates for drivers 35-54 years old."

Declines per licensed driver increased with age so that drivers 80 and older had the most dramatic decreases. If the fatal crash involvement rates for older drivers had mirrored the trend for younger ones from 1997 to 2006, nearly 7,000 additional older drivers would have been in fatal crashes (1,376 drivers 70-74 years old, 1,680 drivers 75-79, and 3,935 drivers 80 and older). Fatal crash rates fell among older drivers for most types of crashes, and the decline was dramatic for crashes at intersections.

"The large drop in intersection crashes is especially important because Institute and other studies have shown that older drivers are overrepresented in multiple-vehicle crashes at intersections," McCartt says. "The data don't allow us to point to any one reason why older drivers' fatal crash experience has improved. Some drivers may have benefited from newer and safer vehicles, and older people generally are more fit than in years past, with better access to health care."

Older drivers are mostly a danger to themselves. Seventy-five percent of people who die in crashes involving older drivers are these drivers themselves or their older passengers.

Older drivers limit car trips: One way some older drivers lower their crash risk is to limit driving. A separate ongoing Institute study is examining how older adults restrict their driving in response to declines in their health, mobility, vision, and memory. Researchers recruited drivers 65 and older in 3 states as they renewed their licenses between November 2006 and December 2007. In the first of several planned interviews, more than 9 in 10 of these drivers said that driving themselves is their primary way to travel. Fewer than 1 percent said they'd been advised by family, friends, or a doctor to give up driving.

Most drivers reported at least some impairment, and the extent of impairment increased with age. For example, 26 percent of drivers 65-69 reported having at least some type of mobility issue, compared with 43 percent of drivers 80 and older. The oldest drivers were more likely to say they restricted their own driving. Drivers 80 and older were more than twice as likely as 65-69 year-olds to self-limit driving by doing such things as avoiding night driving, making fewer trips, traveling shorter distances, and avoiding interstates and driving in ice or snow.

The percentage of drivers who said they limit their driving increased with each added degree of impairment. Drivers cited memory and medical impairments more often than vision or mobility ones. For example, among drivers 80 and older, 74 percent reported medical conditions such as diabetes or arthritis. Sixty-nine percent cited some memory impairment, such as more often forgetting names and appointments or misplacing items, compared with 5 years ago.

Russ Rader | Newswise Science News
Further information:
http://www.iihs.org

More articles from Studies and Analyses:

nachricht Europe’s Demographic Future. Where the Regions Are Heading after a Decade of Crises
10.08.2017 | Berlin-Institut für Bevölkerung und Entwicklung

nachricht Scientists reveal source of human heartbeat in 3-D
07.08.2017 | University of Manchester

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

A Map of the Cell’s Power Station

18.08.2017 | Life Sciences

Engineering team images tiny quasicrystals as they form

18.08.2017 | Physics and Astronomy

Researchers printed graphene-like materials with inkjet

18.08.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>