Science Current Events | Science News | Brightsurf.com
 

'Green Routing' Can Cut Car Emissions Without Significantly Slowing Travel Time, Buffalo Study Find

December 15, 2011
BUFFALO, N.Y. -- The path of least emissions may not always be the fastest way to drive somewhere. But according to new research from the University at Buffalo, it's possible for drivers to cut their tailpipe emissions without significantly slowing travel time.

In detailed, computer simulations of traffic in Upstate New York's Buffalo Niagara region, UB researchers Adel Sadek and Liya Guo found that green routing could reduce overall emissions of carbon monoxide by 27 percent for area drivers, while increasing the length of trips by an average of just 11 percent.

In many cases, simple changes yielded great gains.

Funneling cars along surface streets instead of freeways helped to limit fuel consumption, for instance. Intelligently targeting travelers was another strategy that worked: Rerouting just one fifth of drivers -- those who would benefit most from a new path -- reduced regional emissions by about 20 percent.

Sadek, a transportation systems expert, says one reason green routing is appealing is because it's a strategy that consumers and transportation agencies could start using today.

"We're not talking about replacing all vehicles with hybrid cars or transforming to a hydrogen-fuel economy -- that would take time to implement," said Sadek, an associate professor of civil, structural and environmental engineering. "But this idea, green routing, we could implement it now."

In the near future, GPS navigation systems and online maps could play an important role in promoting green routing, Sadek said. Specifically, these systems and programs could use transportation research to give drivers the option to choose an environmentally friendly route instead of the shortest route.

Sadek and Guo, a PhD candidate, presented their research on green routing at the 18th World Congress on Intelligent Transportation Systems in October.

In the UB study on green routing, the researchers tied together two computer models commonly known as "MOVES" and "TRANSIMS."

The Motor Vehicle Emission Simulator (MOVES), created by the Environmental Protection Agency, estimates emissions. The Transportation Analysis and Simulation System (TRANSIMS) simulates traffic in great detail, taking into account information including the location and pattern of signals; the grade of the road; and the trips people take at different times of day.

After incorporating Buffalo-specific data into TRANSIMS, Sadek and Guo ran a number of simulations, rerouting travelers in new ways each time.

After running the models numerous times, the researchers reached a "green-user equilibrium" -- a traffic pattern where all drivers are traveling along optimal routes. With the system in equilibrium, moving a commuter from one path to another would increase a user's overall emissions by creating more congestion or sparking another problem.

The simulations were part of a broader study Sadek is conducting on evaluating the likely environmental benefits of green routing in the region. His project is one of seven that the U.S. Department of Transportation has funded through a Broad Agency Announcement that aims to leverage intelligent transportation systems to reduce the environmental impact of transportation.

The University at Buffalo is a premier research-intensive public university, a flagship institution in the State University of New York system and its largest and most comprehensive campus. UB's more than 28,000 students pursue their academic interests through more than 300 undergraduate, graduate and professional degree programs. Founded in 1846, the University at Buffalo is a member of the Association of American Universities.

The University at Buffalo


Related Emissions Current Events and Emissions News Articles


Purdue ag economists: Shale oil 'dividend' could pay for smaller carbon footprint
Unanticipated economic benefits from the shale oil and gas boom could help offset the costs of substantially reducing the U.S.'s carbon footprint, Purdue agricultural economists say.

Why global warming is taking a break
Global warming is currently taking a break: whereas global temperatures rose drastically into the late 1990s, the global average temperature has risen only slightly since 1998 - surprising, considering scientific climate models predicted considerable warming due to rising greenhouse gas emissions.

Exporting US coal to Asia could drop emissions 21 percent
Under the right scenario, exporting U.S. coal to power plants in South Korea could lead to a 21 percent drop in greenhouse gas emissions compared to burning the fossil fuel at plants in the United States, according to a new Duke University-led study.

Recycling old batteries into solar cells
This could be a classic win-win solution: A system proposed by researchers at MIT recycles materials from discarded car batteries - a potential source of lead pollution - into new, long-lasting solar panels that provide emissions-free power.

Politicians need to address transport taboos, not just new technology, to meet carbon targets
Transport accounts for 30% of CO2 emissions in the EU, with emissions rising 36% between 1990 and 2007. The research, carried out by Lund University and the University of Surrey a found a need to dissect the widely-held view that new technologies, such as biofuel and improved aircraft design, will result in carbon reduction targets being met.

Antineutrino detectors could aid non-proliferation
Physicists at the Large Hadron Collider in Switzerland and even in the fictional world of CBS' "The Big Bang Theory" look to subatomic particles called neutrinos to answer the big questions about the universe.

Sniffing out billions in US currency smuggled across the border to Mexico
Criminals are smuggling an estimated $30 billion in U.S. currency into Mexico each year from the United States, but help could be on the way for border guards, researchers will report here today. The answer to the problem: a portable device that identifies specific vapors given off by U.S. paper money.

Stinky gases emanating from landfills could transform into clean energy
A new technique that transforms stinky, air-polluting landfill gas could produce the sweet smell of success as it leads to development of a fuel cell generating clean electricity for homes, offices and hospitals, researchers say.

Carbon dioxide 'sponge' could ease transition to cleaner energy
A sponge-like plastic that sops up the greenhouse gas carbon dioxide (CO2) might ease our transition away from polluting fossil fuels and toward new energy sources, such as hydrogen.

Innovations with far-reaching potential for the environment and health
The Kavli Foundation Lecture series today features two prominent scientists: one in the booming area of ionic liquids, the other in medical materials.
More Emissions Current Events and Emissions News Articles

Automotive Fuel and Emissions Control Systems (3rd Edition) (Professional Technician)

Automotive Fuel and Emissions Control Systems (3rd Edition) (Professional Technician)
by James D. Halderman (Author), James Linder (Author)


Automotive Fuel and Emission Control Systems, Third Edition, isdesigned specifically to correlate with the NATEF program.  This comprehensive, up-to-date text covers all aspects of automotive fuel and emissions. It emphasizes diagnosis and troubleshooting, and features tech tips and diagnostic stories throughout.   This title meets the needs for a textbook that combines topics in engine performance (ASE A8 content area) and topics covered in the advanced engine performance (L1) ASE test content area.  By combining these two complementary subjects into one comprehensive textbook, it is easier for the instructor to teach these topics and is cost effective for the student.

Experimental Design and Practical Data Analysis in POSITRON EMISSION TOMOGRAPHY

Experimental Design and Practical Data Analysis in POSITRON EMISSION TOMOGRAPHY
by Prof Federico E Turkheimer (Author), Mattia Veronese (Author), Joel Dunn (Author)


The book contains all the basic notions of Positron Emission Tomography that span from physiology to radiochemistry, physics, math and statistics. All material was carefully crafted and is now presented in graphical manner to ease reading, studying and browsing. It suits equally undergraduate and graduate academic students but it shall be of interest to clinical fellows or professionals in the biomedical sector that use PET in their activity or develop technologies in the area.

NATEF Correlated Task Sheets for Automotive Fuel and Emissions Control Systems (Professional Technician)

NATEF Correlated Task Sheets for Automotive Fuel and Emissions Control Systems (Professional Technician)
by James D. Halderman (Author), James Linder (Author)


This is a student supplement associated with:   Automotive Fuel and Emissions Control Systems, 3/e
James D. Halderman ISBN: 0132542927

Gas Turbine Emissions (Cambridge Aerospace Series)

Gas Turbine Emissions (Cambridge Aerospace Series)
by Tim C. Lieuwen (Editor), Vigor Yang (Editor)


The development of clean, sustainable energy systems is one of the preeminent issues of our time. Most projections indicate that combustion-based energy conversion systems will continue to be the predominant approach for the majority of our energy usage, and gas turbines will continue to be important combustion-based energy conversion devices for many decades to come, used for aircraft propulsion, ground-based power generation, and mechanical-drive applications. This book compiles the key scientific and technological knowledge associated with gas turbine emissions into a single authoritative source. The book has three sections: the first section reviews major issues with gas turbine combustion, including design approaches and constraints, within the context of emissions. The second...

Automotive Fuel and Emissions Control Systems (2nd Edition)

Automotive Fuel and Emissions Control Systems (2nd Edition)
by James D. Halderman (Author), James Linder (Author)


For courses in Engine Performance and Drivability, Fuel Emissions Systems, and Automotive Principles.   Designed specifically to correlate with the NATEF program and ASE certification tests, this comprehensive, up-to-date text covers all aspects of automotive fuel and emissions. It emphasizes diagnosis and troubleshooting, and features tech tips and diagnostic stories throughout. The complete learning package includes a multimedia CD ROM with illustrated power point slides and a workbook containing activities also correlated to the NATEF task list.

Controlling Radiated Emissions by Design

Controlling Radiated Emissions by Design
by Michel Mardiguian (Author)


The 3rd edition of Controlling Radiated Emissions by Design has been updated to reflect the latest changes in the field. New to this edition is material on aspects of technical advance, specifically long term energy efficiency, energy saving, RF pollution control, etc. This book retains the step-by-step approach for incorporating EMC into every new design, from the ground up. It describes the selection of quieter IC technologies, their implementation into a noise-free printed circuit layout, and the gathering of all these into low radiation packaging, including I/O filtering, connectors and cables considerations. All guidelines are supported by thorough and comprehensive calculated examples. Design engineers, EMC specialists and technicians will benefit from learning about the development...

Haynes Manuals 10210 Auto Emission Cntrls Manual

Haynes Manuals 10210 Auto Emission Cntrls Manual
by HAYNES PUBLICATIONS INC. (Publisher)


Haynes Repair Manuals 10210 Auto Emission Cntrls Manual

Continuous Emission Monitoring

Continuous Emission Monitoring
by James A. Jahnke (Author), James Jahnke (Author)


Continuous Emission Monitoring, Second Edition is the most comprehensive source of information on the latest technical and regulatory issues that are affecting the design, application, and certification of CEM systems. It provides a thorough discussion of CEM systems, how they work, their advantages and drawbacks, and the regulatory requirements that govern their operation. Equally suitable for an environmental engineer in a plant or control agency, a CEM user, or an inspector/auditor, this book makes it possible to assess the operating characteristics of commercial systems and to evaluate them for a specific application. Thoroughly referenced, with numerous illustrations, it features:
* A comprehensive review of regulations, with clear information on changes
* New measurement...

Emissions Trading Schemes: Markets, States and Law

Emissions Trading Schemes: Markets, States and Law
by Sanja Bogojevic (Author)


Over the last four decades, emissions trading has enjoyed a high profile in environmental legal scholarship and in environmental law and policy. Much of the discussion is promotional, preferring emissions trading above other regulatory strategies without, however, engaging with legal complexities embedded in conceptualizing, scrutinizing, and managing emissions trading regimes. The combined effect of these debates is to create a perception that emissions trading is a straightforward regulatory strategy, imposable across various jurisdictions and environmental settings. This book shows that this view is problematic for at least two reasons. First, emissions trading responds to distinct environmental and non-environmental goals, including the creation of profit-centers, substituting...

Emissions Trading Design: A Critical Overview (New Horizons in Environmental and Energy Law series)

Emissions Trading Design: A Critical Overview (New Horizons in Environmental and Energy Law series)
by Stefan E. Weishaar (Author)


'Emission trading schemes have become instruments of choice in climate change policy across many jurisdictions, and this has led to massive experimentation across very different contexts. The scale and urgency of the climate change problem and the real-life complexity of emission trading schemes combine to make high quality, detailed studies necessary, important, and sometimes fascinating. This book scores on all these fronts. By putting practical implementations within a sound theoretical framework, it will be of value both for seasoned and not so seasoned scholars and policymakers.'
- Javier de Cendra de Larragán, IE Law School, SpainEmissions trading is becoming an increasingly popular policy instrument with growing diversity in design. This book examines emissions trading design,...

© 2014 BrightSurf.com