Featured Research

from universities, journals, and other organizations

Night-time Driving Over Long Periods Increases Risk Of Accidents

Date:
October 30, 2008
Source:
CNRS
Summary:
Does driving at night affect the risk of accidents? Drowsiness resulting from a lack of sleep is a recognized risk factor which causes traffic accidents. But what happens if drivers combine extended driving and sleep deprivation?

Does driving at night affect the risk of accidents? Drowsiness resulting from a lack of sleep is a recognized risk factor which causes traffic accidents. But what happens if drivers combine extended driving and sleep deprivation?

A study carried out by researchers from CNRS, Inrets, the University of Bordeaux and the University of Stockholm has shown that fatigue connected to the duration of driving very significantly increases the risk of accidents at night.

The study, led by Pierre Philip from the Laboratory for motion, adaptation and cognition (CNRS/Universitι Bordeaux 1 and Bordeaux 2), was able to determine whether 2, 4 and 8 hours of nocturnal driving affected driving performance differently. In order to evaluate the fatigue caused by accumulated driving time, the researchers had fourteen young volunteers drive on an open highway during three nocturnal driving sessions: from 3-5 am, 1-5 am and 9 pm-5 am.

Driving durations were therefore different, but sleep pressure at the end of the driving session, due to the late hours (2-5 am) was identical. The scientists then counted the number of times the drivers veered off course and crossed the lateral lines inappropriately during the last hour of driving in each session. They thus calculated that in comparison with the reference session (9-10 pm), the risk of inappropriate line crossing was:

  • 6 times greater during the 3-5am driving session;
  • 15 times greater during the 1-5am driving session;
  • and 24 times greater during the 9 pm-5am driving session.

In addition, in comparison with the shortest driving session, from 3-5 am, the risk of inappropriate crossing of the lateral lines increased 2.6 times during the 1-5 am driving session and increased fourfold during the 9 pm-5 am driving session.

Extended nocturnal driving therefore has a very large impact on driving performance: currently, safety messages and regulations on time at the wheel do not differentiate between day-time and night-time driving. This study raises the question of whether maximum durations for driving at night should be reconsidered.


Story Source:

The above story is based on materials provided by CNRS. Note: Materials may be edited for content and length.


Journal Reference:

  1. Sagaspe et al. Extended Driving Impairs Nocturnal Driving Performances. PLoS ONE, 2008; 3 (10): e3493 DOI: 10.1371/journal.pone.0003493

Cite This Page:

CNRS. "Night-time Driving Over Long Periods Increases Risk Of Accidents." ScienceDaily. ScienceDaily, 30 October 2008. <www.sciencedaily.com/releases/2008/10/081029135039.htm>.
CNRS. (2008, October 30). Night-time Driving Over Long Periods Increases Risk Of Accidents. ScienceDaily. Retrieved August 30, 2014 from www.sciencedaily.com/releases/2008/10/081029135039.htm
CNRS. "Night-time Driving Over Long Periods Increases Risk Of Accidents." ScienceDaily. www.sciencedaily.com/releases/2008/10/081029135039.htm (accessed August 30, 2014).

Share This




More Mind & Brain News

Saturday, August 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Young Entrepreneurs Get $100,000, If They Quit School

Young Entrepreneurs Get $100,000, If They Quit School

AFP (Aug. 29, 2014) — Twenty college-age students are getting 100,000 dollars from a Silicon Valley leader and a chance to live in San Francisco in order to work on the start-up project of their dreams, but they have to quit school first. Duration: 02:20 Video provided by AFP
Powered by NewsLook.com
Baby Babbling Might Lead To Faster Language Development

Baby Babbling Might Lead To Faster Language Development

Newsy (Aug. 29, 2014) — A new study suggests babies develop language skills more quickly if their parents imitate the babies' sounds and expressions and talk to them often. Video provided by Newsy
Powered by NewsLook.com
Electrical Stimulation Boosts Brain Function, Study Says

Electrical Stimulation Boosts Brain Function, Study Says

Newsy (Aug. 29, 2014) — Researchers found an improvement in memory and learning function in subjects who received electric pulses to their brains. Video provided by Newsy
Powered by NewsLook.com
Treadmill 'trips' May Reduce Falls for Elderly

Treadmill 'trips' May Reduce Falls for Elderly

AP (Aug. 28, 2014) — Scientists are tripping the elderly on purpose in a Chicago lab in an effort to better prevent seniors from falling and injuring themselves in real life. (Aug.28) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins