Featured Research

from universities, journals, and other organizations

Automated Tailgating Cuts Pollution

Date:
July 15, 2007
Source:
Inderscience Publishers
Summary:
An automated way of allowing cars to drive much closer to each other in heavy moving traffic, so-called platooning, could cut congestion, save fuel and cut greenhouse gas emissions, according to new research.

An automated way of allowing cars to drive much closer to each other in heavy moving traffic, so-called platooning, could cut congestion, save fuel and cut greenhouse gas emissions, according to research published in Inderscience's International Journal of the Environment and Pollution.

As populations grow and the number of vehicles on the roads in cities and motorways across Europe, North America and the developing world, rises, traditional ways of tackling the problem, such as simply building more roads or improving public transport are becoming less and less effective. "Automated highway systems are one of the many approaches that have been suggested to tackle the problems," says Mitra.

Traffic is a growing problem across the globe with the number of vehicles on the on the roads in Britain alone having risen from 26 million to almost 33 million in the last decade and that number set to rise by 25% over the next ten years. The problem is burgeoning in areas of enormous economic growth, such as China and India where countless new vehicles are pulling out and entering the traffic flow on newly built roads. With all that new traffic, of course, comes more pollution, and the need for ever more innovative approaches to tackling it.

Driving a lot closer than a safe stopping distance from the vehicle in front is not a sensible option. Learner drivers are taught from their first lesson on the road to keep their distance. According to Debojyoti Mitra and Asis Mazumdar in the Department of Mechanical Engineering at Jadavpur University, Kolkata, India, in heavy traffic these safe distances mean more tailgate turbulence and increased drag on individual vehicles, which means lower fuel efficiency.

The researchers investigated the drag on platoons of four vehicles in Jadavpur University's vehicle test wind tunnel.

Cars moving in the same direction separated by a meter or so would reduce drag and so save fuel. Adding sensors and safety controls that allow vehicles to drive at such a small separation is possible. Now, Mitr and Mazumdar explain how car manufacturers and transport policy might work to allow such a platooning system to operate.

"The leading car in the platoon experiences the highest drag as you would expect but no more than if it were driving alone," explains Mitra, "The second car has a much lower drag coefficient than the first car in a two-car platoon. The middle car experiences the lowest drag in a three-car platoon and the third car in the platoon, starting from the front, experiences the least drag in a four-car platoon."

Reduced drag not only means lower average fuel consumption for a platoon, but also reduces the overall road noise heard by drivers and other road users.


Story Source:

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


Cite This Page:

Inderscience Publishers. "Automated Tailgating Cuts Pollution." ScienceDaily. ScienceDaily, 15 July 2007. <www.sciencedaily.com/releases/2007/07/070712134955.htm>.
Inderscience Publishers. (2007, July 15). Automated Tailgating Cuts Pollution. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2007/07/070712134955.htm
Inderscience Publishers. "Automated Tailgating Cuts Pollution." ScienceDaily. www.sciencedaily.com/releases/2007/07/070712134955.htm (accessed August 1, 2014).

Share This




More Matter & Energy News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Tesla, Panasonic Ink Deal To Make Huge Battery 'Gigafactory'

Tesla, Panasonic Ink Deal To Make Huge Battery 'Gigafactory'

Newsy (July 31, 2014) The deal will help build a massive battery factory that Tesla says will produce 500,000 lithium batteries by 2020. Video provided by Newsy
Powered by NewsLook.com
Britain Testing Driverless Cars on Roadways

Britain Testing Driverless Cars on Roadways

AP (July 30, 2014) British officials said on Wednesday that driverless cars will be tested on roads in as many as three cities in a trial program set to begin in January. Officials said the tests will last up to three years. (July 30) Video provided by AP
Powered by NewsLook.com
7 Ways to Use Toothpaste: Howdini Hacks

7 Ways to Use Toothpaste: Howdini Hacks

Howdini (July 30, 2014) Fresh breath and clean teeth are great, but have you ever thought, "my toothpaste could be doing more". Well, it can! Lots of things! Howdini has 7 new uses for this household staple. Video provided by Howdini
Powered by NewsLook.com
Smoked: 2015 Ducati Diavel Vs 2014 Chevy Corvette Stingray Drag Race

Smoked: 2015 Ducati Diavel Vs 2014 Chevy Corvette Stingray Drag Race

Cycle World (July 30, 2014) The Bonnier Motorcycle Group presents Smoked; a three part video series. In this episode the 2015 Ducati Diavel takes on the 2014 Chevy Corvette Stingray Video provided by Cycle World
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