Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Lane departure warning systems help drowsy drivers avoid crashes

17.10.2006
Four driver warning systems that may help those who fall asleep at the wheel were recently tested and evaluated by human factors/ergonomics (HF/E) researchers at Ford Motor Company.

Called Lane Departure Warnings (LDW), these systems are designed to help reduce car crashes by alerting drowsy drivers that the vehicle has wandered out of the lane. The researchers will present their results on Thursday, October 19, 2006, during the HFES 50th Annual Meeting at the Hilton San Francisco Hotel, which takes place October 16–20.

National Highway Transportation Safety Administration data from 2002 indicate that about 1500 fatalities have occurred in recent years from about 100,000 crashes in which driver drowsiness was a factor. Effective LDW systems can reduce that number. The question is, what makes an effective LDW?

The warning systems tested rely on the detection of the vehicle's position in relation to the road lane markings with the help of a small camera mounted on the vehicle. In the study, if a driver departed out of a lane, one or a combination of the four warning systems would activate: steering wheel torque that communicated to the driver the appropriate steering wheel angle needed to return to the lane, a rumble strip sound recording, steering wheel vibration, or a row of flashing red LEDs on top of the instrument panel.

Participants used Ford's VIRtual Test Track Experiment, a hydraulically powered moving-base simulator, to "drive" a 2000 Volvo S80. They had not slept for 23 hours, and their drowsiness was assessed by, among other things, a physiological measure of eye closure. Participants drove for three hours, during which they experienced both forced and driver-initiated lane departures.

All four warning systems cut drivers' reaction time almost in half. The steering wheel vibration warning in combination with the steering wheel torque proved to be the most effective. When drivers noticed one of the warning systems, they provided feedback about whether it was helpful, intuitive, and acceptable.

As a result of this study, the HF/E researchers have gained knowledge of how to design an effective LDW system in the effort to prevent car crashes and fatalities caused by drowsy drivers.

Lois Smith | EurekAlert!
Further information:
http://www.hfes.org

More articles from Automotive Engineering:

nachricht The car of the future – sleeper cars and travelling offices too?
18.06.2018 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO

nachricht Self-driving cars for country roads
07.05.2018 | Massachusetts Institute of Technology, CSAIL

All articles from Automotive Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

Im Focus: Lining up surprising behaviors of superconductor with one of the world's strongest magnets

Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur

What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

2018 Work Research Conference

25.07.2018 | Event News

 
Latest News

Interactive software tool makes complex mold design simple

16.08.2018 | Information Technology

Study tracks inner workings of the brain with new biosensor

16.08.2018 | Health and Medicine

Fraunhofer HHI develops next-generation quantum communications technology in the UNIQORN project

16.08.2018 | Information Technology

VideoLinks
Science & Research
Overview of more VideoLinks >>>