News Tagged: Emissions
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Portland State University engineering doctoral student Alex Bigazzi has developed a new course aimed at giving transportation engineers experience running emissions models. The course, Transportation Emissions Modeling, is offered through the Department of Civil and Environmental Engineering.
The practical nature of the course sets it apart from the few emissions courses offered at other universities, Bigazzi said. “Those tend to be on the policy side or the environmental side,” he said. “This is unique in trying to help engineers more than policymakers or future policymakers.”
The course fits with both Bigazzi’s own experience and Portland State’s faculty research strength in emissions and modeling. The university already offers an air quality course, but Bigazzi’s offering focuses narrowly on emissions from motor vehicles.
Students spent the first half of the inaugural course learning context for the models, including when they are used and what they can do. “There are federal requirements to do these models for all serious transportation projects,” Bigazzi said. “People need to understand what goes into them and how accurate they can be.”
Because emissions models aren’t as complex mathematically as other models, and because the Environmental Protection Agency’s MOVES model is freely accessible, students can spend more time learning exactly what the model can and can’t do.
Tags: alex bigazzi, emissions, transportation modeling
At age 8, Taras Grescoe decided that his Vancouver, B.C., residential street had too many cars chugging past. So he removed them.
“I completely redesigned our city block and modeled with Monopoly hotels what it would look like without cars,” Grescoe said. “I was this 8-year-old urban planning geek in the making.”
While his career took a different path, those early transportation experiences shaped a worldview Grescoe outlines in his latest book, “Straphanger.” Grescoe will present his observations as the keynote speaker for the Oregon Transportation Summit Sept. 16.
Register for the summit through the following link:
The author of nonfiction essays and books including “Bottomfeeder: How to Eat Ethically in a World of Vanishing Seafood” Grescoe is a frequent contributor to the New York Times, the Independent and National Geographic Traveler and has written for Gourmet, Salon and Wired.
If moving from a walkable neighborhood in Toronto to a car-dominated one in Vancouver first awakened Grescoe to how transportation shapes our cities, his car-free travels to cities across the world cement the thesis of “Straphanger”: Cars nearly killed our greatest cities but transit can help bring them back.
Grescoe details the loss of urban public space as cities that formed around streetcars and transit lines gradually grew to serve automobiles. “The car, especially in the postwar years, was the thing that really turned North American cities,” he said. “Every time you get in a car, you are turning your back on the public realm.
“You subtly undermine the quality of life in the city when you opt for private transportation.”
Tags: bicycling, bottomfeeder, emissions, montreal, oregon transportation summit, straphanger, taras grescoe, transit, walking
An OTREC project recently took an in-depth look at the travel-time and health-related effects of a new implementation of a state of the art adaptive traffic system.
Southeast Powell Boulevard is a multimodal urban corridor connecting highway US-26 through Portland, Oregon. The corridor is highly congested during morning and evening peak traffic hours. In October 2011, an adaptive traffic system called SCATS was deployed.
The primary function of SCATS, or Sydney Coordinated Adaptive Traffic System, is to mitigate traffic congestion. Using sensors (usually inductive loops) at each traffic signal, the system tries to find the best cycle time and phasing along the corridor as traffic demand patterns change.
In this integrated multimodal study, OTREC researchers looked at the corridor’s traffic speed and transit reliability, before and after the implementation of SCATS. In addition, a novel contribution of this study was to study the link between signal timing and air quality.
Tags: congestion, emissions, figliozzi, mitigation, otrec, psu, scats, transit, trimet, tsp
A new transportation class at the University of Oregon, launched in January 2013 and funded by grants from OTREC and NITC, by all accounts had a wonderful first term.
Conceived as part of the curriculum for the Oregon Leadership in Sustainability (OLIS) program at U of O, the course, titled Sustainable Transportation, will be a permanent part of the OLIS class roster and will be open to all graduate students at the university.
The class this winter, led by instructors Ann Scheerer and Larisa Varela, taught applied research in a real-world setting. Students worked on planning projects for the university and for its home community, the City of Eugene, Ore.
On March 20, 2013, U of O's Transportation and Livability Student Group, LiveMove, hosted a public event where students were invited to present their research and interested community members were invited to attend.
Tags: bicycling, emissions, livemove, marc schlossberg, otrec, university of oregon
OTREC research associate John MacArthur, in partnership with Drive Oregon, has been awarded a grant from Metro.
The grant is part of a $2.1 million effort by Metro to improve air quality and community health.
With the Metro grant, Drive Oregon and MacArthur plan to conduct a study of consumer perception and use of electric bicycles, pedal-bikes that provide extra propulsion from a rechargeable battery.
The idea is to see whether having the use of an e-bike will persuade non-bicycle-commuters to use a bike for the “first and last mile” of their daily commute; for example, to get from their workplace to the nearest MAX light rail station.
The e-bikes provided in the study will be foldable for convenient carrying onto the train. Ultimately, the partners of this study hope to increase the percentage of people who commute by bicycle and light rail, thus contributing to overall community health by reducing automobile emissions.
Tags: bicycle, bicycling, drive oregon, electric vehicles, emissions, livability, metro, otrec