Featured Research

from universities, journals, and other organizations

Lane-swapping helps autonomous vehicles avoid collisions

Date:
January 28, 2013
Source:
Inderscience
Summary:
Autonomous, driverless vehicles look set to hit the streets in the near future and become increasingly common, so UK researchers have investigated algorithms that could help developers include escape maneuvers to allow such vehicles to quickly and safely switch lanes to avoid collisions with other road users.

Autonomous, driverless vehicles look set to hit the streets in the near future and become increasingly common, so UK researchers have investigated algorithms that could help developers include escape manoeuvres to allow such vehicles to quickly and safely switch lanes to avoid collisions with other road users.

Related Articles


Writing in the aptly named International Journal of Vehicle Autonomous Systems, Matthew Best of the Department of Aeronautical and Automotive Engineering at Loughborough University, in Leicestershire, discusses the optimisation of a vehicle's standard brake, acceleration and steering control inputs in the context of avoiding collisions. He has devised a computer simulation that allows all those parameters to be optimised concurrently during a safety manoeuvre and to show how speed reduction and swapping lanes might be carried out by an autonomous vehicle.

The optimal rapid lane-change would inevitably be an aggressive, high "g" manoeuvre that would destabilise the vehicle, and additional computing power would be needed to act quickly to correct under steer and other issues that arise during and after such a vehicle movement. The high-speed lane switch would likely be rarely used in a real-world autonomous drive, but could, in exceptional circumstances, allow driverless or robot vehicles to be safer on roads that which they share with other such vehicles and vehicles with human drivers.

Best points out that simulations at 70 mph (the UK national speed limit on motorways) reveal that braking alone would not lead to a safe outcome in many situations, so a lane swap would almost certainly be needed, assuming there were an empty lane for a vehicle to move into. A lane-change would in the best circumstances move the vehicle to safety in half the distance as braking at that speed.

The researchers concede that at present the limitations of on-board computing power in autonomous vehicles and the need for high-speed data streams measuring real tyre friction coefficients and more means that his algorithm is limited to the simulation at present. However, it paves the way for developing more powerful, safety aware driving systems for such vehicles.


Story Source:

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


Journal Reference:

  1. Matthew C. Best. Optimisation of high-speed crash avoidance in autonomous vehicles. International Journal of Vehicle Autonomous Systems, 2012; 10 (4): 337 DOI: 10.1504/IJVAS.2012.051269

Cite This Page:

Inderscience. "Lane-swapping helps autonomous vehicles avoid collisions." ScienceDaily. ScienceDaily, 28 January 2013. <www.sciencedaily.com/releases/2013/01/130128081530.htm>.
Inderscience. (2013, January 28). Lane-swapping helps autonomous vehicles avoid collisions. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2013/01/130128081530.htm
Inderscience. "Lane-swapping helps autonomous vehicles avoid collisions." ScienceDaily. www.sciencedaily.com/releases/2013/01/130128081530.htm (accessed October 24, 2014).

Share This



More Matter & Energy News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

3D Printed Instruments Make Sweet Music in Sweden

3D Printed Instruments Make Sweet Music in Sweden

Reuters - Innovations Video Online (Oct. 23, 2014) Students from Lund University's Malmo Academy of Music are believed to be the world's first band to all use 3D printed instruments. The guitar, bass guitar, keyboard and drums were built by Olaf Diegel, professor of product development, who says 3D printing allows musicians to design an instrument to their exact specifications. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Chameleon Camouflage to Give Tanks Cloaking Capabilities

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Reuters - Innovations Video Online (Oct. 22, 2014) Inspired by the way a chameleon changes its colour to disguise itself; scientists in Poland want to replace traditional camouflage paint with thousands of electrochromic plates that will continuously change colour to blend with its surroundings. The first PL-01 concept tank prototype will be tested within a few years, with scientists predicting that a similar technology could even be woven into the fabric of a soldiers' clothing making them virtually invisible to the naked eye. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Jet Sales Lift Boeing Profit 18 Pct.

Jet Sales Lift Boeing Profit 18 Pct.

Reuters - Business Video Online (Oct. 22, 2014) Strong jet demand has pushed Boeing to raise its profit forecast for the third time, but analysts were disappointed by its small cash flow. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Internet of Things Aims to Smarten Your Life

Internet of Things Aims to Smarten Your Life

AP (Oct. 22, 2014) As more and more Bluetooth-enabled devices are reaching consumers, developers are busy connecting them together as part of the Internet of Things. (Oct. 22) 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:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

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