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


Failed stars host powerful aurora displays
Brown dwarf stars host powerful aurora displays just like planets, astronomers have discovered.

Tiny grains of rice hold big promise for greenhouse gas reductions, bioenergy
Rice serves as the staple food for more than half of the world's population, but it's also the one of the largest manmade sources of atmospheric methane, a potent greenhouse gas.

Lobster-Eye imager detects soft X-ray emissions
Solar winds are known for powering dangerous space weather events near Earth, which, in turn, endangers space assets.

Switching off street lights at night does not increase car crashes and crime
Reduced street lighting in England and Wales is not associated with road traffic collisions or crime, according to research published in the Journal of Epidemiology and Community Health.

Greenhouse gas source underestimated from the US Corn Belt, University of Minnesota-led study shows
Estimates of how much nitrous oxide, a significant greenhouse gas and stratospheric ozone-depleting substance, is being emitted in the central United States have been too low by as much as 40 percent, a new study led by University of Minnesota scientists shows.

Wind energy provides 8 percent of Europe's electricity
EU's grid connected cumulative capacity in 2014 reached 129 GW, meeting 8% of European electricity demand, equivalent to the combined annual consumption of Belgium, the Netherlands, Greece and Ireland.

Boosting gas mileage by turning engine heat into electricity
Automakers are looking for ways to improve their fleets' average fuel efficiency, and scientists may have a new way to help them.

Economic slump, not natural gas boom, responsible for drop in CO2 emissions
The 11 percent decrease in climate change-causing carbon dioxide emissions in the U.S. between 2007 and 2013 was caused by the global financial recession - not the reduced use of coal, research from the University of California Irvine, the University of Maryland, and the International Institute for Applied Systems Analysis shows.

Eruption of Bardarbunga volcano in Iceland spread SO2 pollutants over Europe
The six month long eruption of the Bardarbunga volcano (31 August 2014?27 February 2015 ) was the largest in Iceland since the devastating Laki eruption of 1783-84, producing around 1.6 km3 of lava, covering an area equivalent to Manhattan Island.

Fossil fuel emissions will complicate radiocarbon dating, warns scientist
Fossil fuel emissions could soon make it impossible for radiocarbon dating to distinguish new materials from artefacts that are hundreds of years old.
More Emissions Current Events and Emissions News Articles

AUTOMOTIVE EMISSION CONTROLS MANUAL (Haynes Techbooks)

AUTOMOTIVE EMISSION CONTROLS MANUAL (Haynes Techbooks)
by Chilton (Author)


Haynes Techbook covering automotive emission controls.

Emissions Trading and WTO Law: A Global Analysis

Emissions Trading and WTO Law: A Global Analysis
by Felicity Deane (Author)


'The legal arrangements applying to the economic and commercial aspects of managing natural resources have traditionally been unrelated to those applying to the management of ecosystems and the protection of the environment. However, the interface between what have increasingly been described as economic law and environmental law has become an issue of both practical and theoretical importance at all levels of the legal system. Dr Felicity Deane's global analysis of the relationship between emissions trading law and the law of the World Trade Organization is both timely and important. She skillfully reviews the range of complex legal issues. The result is a significant contribution to the legal literature.'
- Douglas Fisher, Queensland University of Technology, AustraliaEmissions...

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.

ICP Emission Spectrometry

ICP Emission Spectrometry
by Joachim Nölte (Author)


All the essentials needed for successful ICP OES analyses.
Using a clear and comprehensive style, the author introduces practitioners to ICP emission spectrometry, covering the basics as well as information on the instrumentation, instructions on how to develop methods and numerous concrete examples.
The layout is extremely reader-friendly and well structured, with the author highlighting typical questions and problems, while also providing checklists and detailed instructions for implementation.
Thus, this book is not intended merely for the readers' own training and further education, but its sections on maintenance and troubleshooting also make it a reliable source for lab chemists.
Throughout, the author draws on his knowledge and experience gained over the last 20...

Otoacoustic Emissions: Principles, Procedures, and Protocols (Core Clinical Concepts in Audiology)

Otoacoustic Emissions: Principles, Procedures, and Protocols (Core Clinical Concepts in Audiology)
by Sumitrajit Dhar (Author), James W. Hall III (Author)


Otoacoustic emissions now play an important role in hearing screening and the clinical assessment of children and adults. However, a new wave of evidence is challenging our fundamental understanding regarding OAE sources and mechanisms. Similarly, just as we have settled on methods and protocols for clinical uses of otoacoustic emissions, ongoing research suggests new opportunities for evidence-based clinical applications. In Otoacoustic Emissions: Principles, Procedures, and Protocols, Drs. Dhar and Hall have collected the latest information on OAEs from basic research to clinical applications. The book is concise, but comprehensive, and covers the essentials of the subject from innovative and up-to-date perspectives. The material covered in the book is appropriate for intermediate and...

Reduce Your Carbon Footprint: A Beginners Guide To Reducing Your Greenhouse Gas Emissions (Green Living Series Book 1)

Reduce Your Carbon Footprint: A Beginners Guide To Reducing Your Greenhouse Gas Emissions (Green Living Series Book 1)


Make Your Contribution to a Greener Earth – Reduce Your Carbon Footprint Now
** Get this book by Author Ann M. Colson **

Have you ever wondered how your life has affected the environment that you live in? Have you heard the term ‘Carbon Footprint’ and been unable to understand the concept in its totality? Are you conscious of the fact that your lifestyle could have led to the depletion of resources that are vital to life on this planet?

This book aims to educate readers on the various aspects of Carbon Footprint and help find easy and implementable measures to reduce the impact as far as possible. The objective of this book is to help simplify the scientific jargon and make it easy to understand for everyone so that all readers are able to realize and...

PRINCIPLES OF AUTOMOTIVE VEHICLES: Including The Engine; Gasoline, Diesel, Gas Turbine And Propane Fuel Systems; Exhaust And Emission Control Systems; Lubrication; And Electrical And Cooling Systems

PRINCIPLES OF AUTOMOTIVE VEHICLES: Including The Engine; Gasoline, Diesel, Gas Turbine And Propane Fuel Systems; Exhaust And Emission Control Systems; Lubrication; And Electrical And Cooling Systems
by U.S. Army


Over 750 pages!

Usage. The manual is to be used to provide
basic descriptive information to the field and to service
and troop schools concerning the automotive vehicle and
how it works. It also contains information that makes it a
convenient reference manual. The information
contained within will be of particular interest to the
following:

a. Automotive maintenance personnel.
b. Maintenance supervisors.
c. Managers and supervisors responsible for
interpreting automotive-related data.
d. Maintenance trainers in units and schools.
e. Individuals preparing for skill qualification
tests.

Scope. This text explains the automotive
vehicle in general. The explanations avoid...

China's Technological Catch-Up Strategy: Industrial Development, Energy Efficiency, and CO2 Emissions

China's Technological Catch-Up Strategy: Industrial Development, Energy Efficiency, and CO2 Emissions
by Michael T. Rock (Author), Michael Toman (Author)


Prior to 1979, China had a bifurcated and geographically-dispersed industrial structure made up of a relatively small number of large-scale, state-owned enterprises in various industries alongside numerous small-scale, energy-intensive and polluting enterprises. Economic reforms beginning in 1979 led to the rapid expansion of these small-scale manufacturing enterprises in numerous energy-intensive industries such as aluminum, cement, iron and steel, and pulp and paper. Subsequently, the government adopted a new industrial development strategy labeled "grasp the large, let go the small." The aims of this new policy were to close many of the unprofitable, small-scale manufacturing plants in these (and other) industries, create a small number of large enterprises that could compete with OECD...

Industrial Air Quality and Ventilation: Controlling Dust Emissions

Industrial Air Quality and Ventilation: Controlling Dust Emissions
by Ivan Nikolayevich Logachev (Author), Konstantin Ivanovich Logachev (Author)


In the field of industrial ventilation and air quality, a lack of adequate analysis for aerodynamic processes, as well as a shortage of properly equipped computer facilities, has forced specialists to rely on an empirical approach to find answers in the past. Commonly based on crude models, practical data, or countertypes, the answers often offered have been imprecise. Summarizing the results of the authors’ research conducted over the past 40 years, Industrial Air Quality and Ventilation: Controlling Dust Emissions examines air injection in granular material streams and defines the closed hood capacity widely used in the mechanical reprocessing of minerals. This book introduces a methodological approach (dynamic theory) that broadens the range of granular materials, including...

Greenhouse Gas Emissions from International Aviation: Legal and Policy Challenges (Essential Air and Space Law)

Greenhouse Gas Emissions from International Aviation: Legal and Policy Challenges (Essential Air and Space Law)
by Alejandro Piera Valdes (Author)


While the aviation sector has introduced a number of technological and operational measures to curb its greenhouse gas emissions, these will not offset the emissions expected from its projected growth. This book examines the legal framework underlying the international aviation and climate change discourse. It analyzes the suitability of the International Civil Aviation Organization's (ICAO) institutional setting to address climate change and provides a critical assessment of the European Union Emission Trading Scheme. Finally, the book makes several recommendations to facilitate the adoption, implementation, and, ultimately, compliance with the ICAO's global market-based measure scheme to limit greenhouse gas emissions from international aviation. (Series: Essential Air and Space Law...

© 2015 BrightSurf.com