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Fuel economy standards cheaper, more beneficial than previously believed

A new study published in Environmental Science & Technology found that fuel economy standards are not as difficult to meet as previously believed, with potential benefits including lower costs for consumers and automakers. The research also suggests that slightly slower acceleration times can significantly reduce overall emissions.

SourceCollege of Engineering, Carnegie Mellon University·JournalEnvironmental Science & Technology·DateSep 6, 2017

Not even the Himalayas are immune to traffic smog

Researchers from the University of Cincinnati found high sulfur pollution along India's Manali-Leh Highway, suggesting a link to diesel pollution. The study, published in Archives of Environmental Contamination and Toxicology, showed that diesel exhaust contributes to acid rain and has environmental impacts even in remote areas.

SourceUniversity of Cincinnati·JournalArchives of Environmental Contamination and Toxicology·DateMay 2, 2017

How safe is that driver next to you? A trucker's poor health could increase crash risk

A new study by University of Utah Health found that commercial truck drivers with three or more medical conditions are quadruple their chance of being in a crash compared to healthier drivers. The research suggests that a driver's poor health can increase the risk not only for themselves but also for others around them.

SourceUniversity of Utah Health·JournalJournal of Occupational and Environmental Medicine·DateJan 16, 2017

Stock market fails to predict product performance

A study by Michigan State University found that investors can only accurately predict product performance 48-55% of the time after a preannouncement. Researchers discovered certain conditions, such as detailed and truthful preannouncements in less competitive industries, can improve stock market reactions to preannouncements.

SourceMichigan State University·JournalJournal of the Academy of Marketing Science·DateJan 11, 2017

Driverless platoons

MIT engineers analyzed a simple vehicle-platooning scenario and found that relatively simple scheduling policies can save fuel and minimize delays for autonomous vehicle fleets. The findings may also apply to conventional long-distance trucking and ride-sharing services.

Structural, regulatory and human error were factors in Washington highway bridge collapse

A new analysis by civil engineering faculty at the University of Illinois at Urbana-Champaign outlines the factors that led to the 2013 Interstate 5 bridge collapse in Washington. The study highlights the importance of updating databases to reflect minimum heights and implementing automated reporting systems to prevent similar accidents.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Performance of Constructed Facilities·DateAug 26, 2016

Online shopping might not be as green as we thought

A multi-year regional study at the University of Delaware suggests that home shopping has a greater impact on transportation sector than previously believed. The study found that online shopping leads to increased wear and tear on pavements and higher environmental pollution due to more delivery trucks on the roads.

SourceUniversity of Delaware·JournalInternational Journal of Sustainable Development & World Ecology·DateFeb 5, 2016

Farm manager plays leading role in postharvest loss

A study in Mato Grosso, Brazil found that farm managers who are aware of factors contributing to postharvest loss actually experience less grain loss. The main causes of loss include harvest speed, lack of truck maintenance, bad weather, and poor road conditions. Despite identifying these issues, many farmers do not prioritize loss red...

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalInternational Journal of Agricultural Management·DateAug 6, 2014

Foul fumes derail dinner for hungry moths

Researchers found that natural plant odors and human sources of pollution can conceal the scent of sought-after flowers, leading to energy and time losses for pollinators. The study used a chemical detection device to track flower odors in the wild and showed remarkable similar results in a lab wind tunnel test.

SourceUniversity of Washington·JournalScience·DateJun 26, 2014

Radiation detection to go

The Mobile Radiation Detection and Identification System (MRDIS) enables scanning of transshipped containers, making it difficult for terrorists to smuggle radioactive materials. Eight MRDIS units have been deployed worldwide, with plans to expand to two international airports next year.

Wayne State researchers seek to determine impacts of differential speed limits on state freeways

Researchers at Wayne State University are conducting a comprehensive study on the impacts of differential speed limits for cars and trucks on Michigan's state freeways. The study aims to determine whether raising truck speed limits would improve safety or have negative effects on air quality, pavement quality, and freight operations.

Diesel technologies drastically cut emissions under real-world conditions

Diesel technologies have drastically cut particulate matter (PM) and nitrogen oxides (NOx) emissions in new tractor trailer trucks, with reductions of 98% for NOx and 95% for PM. The emission cuts are attributed to exhaust gas recirculation and selective catalytic reduction technologies.

SourceNorth Carolina State University·JournalTransportation Research Record Journal of the Transportation Research Board·DateApr 16, 2012

MIT study: Driving the green

A new MIT study suggests that electric vehicles can cost 9 to 12 percent less to operate than diesel engines for urban deliveries, leading to potential savings of $900 to $1,400 per truck per year. The study also explores the viability of vehicle-to-grid systems, which could provide additional revenue streams through power services.

The science of bike-sharing

The new bike-sharing system aims to reduce traffic congestion and alleviate parking shortages, promote fitness, and enable good complementary public transportation. Tel Aviv University's research provides a mathematical model to scientifically manage bike availability, creating a more efficient and user-friendly system.