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 WAKE-UP provides new treatment option for stroke patients | International study led by UKE
17.05.2018 | Universitätsklinikum Hamburg-Eppendorf

nachricht First form of therapy for childhood dementia CLN2 developed
25.04.2018 | Universitätsklinikum Hamburg-Eppendorf

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: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

Im Focus: Computer-Designed Customized Regenerative Heart Valves

Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.

Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...

Im Focus: Light-induced superconductivity under high pressure

A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.

Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Supersonic waves may help electronics beat the heat

18.05.2018 | Power and Electrical Engineering

Keeping a Close Eye on Ice Loss

18.05.2018 | Information Technology

CrowdWater: An App for Flood Research

18.05.2018 | Information Technology

VideoLinks
Science & Research
Overview of more VideoLinks >>>