Tag: traffic

GPS Directions Help Save the Environment

One of the largest makers of consumer GPS devices has commissioned a study on fuel consumption in cars that have GPS devices and cars that lack the feature. The conclusion is that having a device that informs drivers about traffic can lower emissions. Of course, if you can avoid taking a car you should do so.

In a three pronged study which evaluated drivers without a navigation system, drivers with a navigation system, and drivers with a navigation system that included traffic, the results revealed that drivers using navigation devices 1) drove shorter distances and 2) spent less time driving. Conducted in two metropolitan areas of Germany – Dusseldorf and Munich – the study also showed that drivers with navigation devices had a 12% increase in fuel efficiency, as measured by liters of fuel consumed per 100 kms. Fuel consumption among those drivers using navigation fell from 8.3 to 7.3 l/100kms.
This increase in fuel economy translates to an estimated .91 tons (metric) decrease in carbon dioxide emissions every year per driver, or a 24% decrease over the amount that the average non-navigation user emits per year. Stated in terms of grams/km the reduction equates to 25 g/km per car. And with an annualized decrease in driving of nearly 2500 fewer kilometers per driver, 1.19 million tires would also be saved from disposal in Germany due to the decrease in wear and tear.

7.5 Tonne TNT Electric Trucks in London

Over at the Green Car Congress there’s a post about some new big wheels. Electric trucks will soon be transporting electric (and non-electric) goods to consumers. The trucks are a trial run for a transportation logistics company called TNT and are made out of lightweight materials which will allow them to be even more efficient.

“If the green trial proves successful, TNT will consider adding 200 additional zero emission vehicles to its fleet to serve in other urban locations in the UK. This would result in significantly reduced controlled and CO2 emissions.

TNT has an overall rating of 84 out of a possible 100 on the Dow Jones Sustainability Index, the highest recorded score in the Industrial Transportation category in 2006.”

Breathing Concretely

Concrete that breaths is getting a lot media coverage recently, and that’s great to see. Business Week recently ran an article about smog-eating concrete that is on display in Venice (ironically, a city with no cars). The idea of buildings using this concrete is really nice, it will make city air breathable, of course if less people drove this research wouldn’t be needed.

Previously, we looked at an artistic display of this concrete.

“Visitors to the Italian Pavilion of the architecture exhibition in the Venice Biennale, which will remain open until Nov. 19, will get a breath of fresh air. That’s because parts of the concrete walls and grounds have been built with cement containing an active agent that, in presence of light, breaks air pollutants such as carbon monoxide, nitrogen oxide, benzene, and others through a natural chemical process called photocatalysis.”

New Diesel Laws in USA Will Clean Air

Diesel fuel in the USA will have to contain a lot less sulfur thanks to a new law that just went into effect. This cleaner diesel is being compared to the removal of lead from gasoline in terms of its potential impact on air quality.

“The agency estimates that by 2030, when most old engines will have been replaced, 20,000 premature deaths, tens of thousands of illnesses, and more than 7,000 hospital visits will be prevented every year.

Officials said cleaner diesel fuel will immediately cut soot emissions from any diesel vehicle by 10 percent. But when combined with new engines hitting the road in January, it will enable emission reductions of up to 95 percent. ”

Less Smog, More Design

odd sculptureElegant Embellishments has created some groovy tiles that clean the air and add some aesthetic flair in cities. The tiles are still being developed, but this idea is really cool. The tiles are modular and can be mounted as a stand alone sculpture or attached to a building.

The technology behind the tiles is still being tweaked. Essentially, the tiles absorb pollutants that are generated from cars that lead to smog, while letting other gasses float on by. The tiles need to be located near the pollution source in order to be the most effective of course.

“The tiles provide councils, developers, and designers with an easy way simultaneously to improve the air quality and visual appeal of urban spaces. A London- and Berlin-based, interdisciplinary collaboration between innovators and materials manufacturers, architects and city councils, Elegant Embellishments produces lo-tech, interactive tiles in all shapes and sizes together with Millenium Chemicals TiO2. The tiles are modular and can thus be assembled to cover any surface or create any shape desired.”