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The video begins at 4:40.
A major aspect of transportation planning is understanding behavior: how to predict it and how to influence it over the long term. Transportation models typically emphasize policy variables such as travel time and cost. While clearly important, we hypothesize that other variables may be just as influential, namely, variables related to environmental consequences such as greenhouse gas emissions. This work is motivated by several factors. First, there is evidence from behavioral economics in non-transport domains that providing personalized information regarding environmental impact can significantly modify behavior. Second, applications to transport appear to have potential as many studies find that environmental consciousness influences transport behavior. Third, there are a growing number of transportation websites that are reporting environmental savings. Finally, smartphones provide the technological means to provide real-time, person-specific travel information regarding trip times, costs, and environmental impacts. Results from a computer laboratory experiment will be presented, which indicate that providing informing regarding environmental impacts significantly increases sustainable behaviors. Further, the experiments suggest a “value of green” of around 44-84 cents per pound of CO2 savings.
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Recreational trails serve as valuable transportation corridors and support the health of users. Wheelchair accessibility of recreational trails depends on a variety of conditions, including slope, cross-slope, and surface characteristics. This project focused on improving the firmness and stability of a 0.2-mile section of trail that was otherwise accessible. The existing trail surface consisted of loose ¼” off-specification aggregate on native soil. A volcanic ash-Portland cement binder, studied in prior research, was batched, distributed, mixed, wetted, and compacted on site to improve the firmness and stability of the surface resulting in a smoother surface with less rolling resistance. The webinar will present details of the trail conditions, materials, batching, placement, and surface characteristics before and after treatment.
KEY LEARNING OUTCOMES
Attendees will be able to:
- Describe and differentiate pozzolanic and cementitious...
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The video begins at 2:35.
“We are faced with a grave crisis that may change our way of life forever. We live in a civilization that evolved on the promise of an endless supply of cheap oil. The era of cheap oil will end, probably much sooner than most people realize. To put this looming crisis in perspective, and to judge its significance, it helps to start from the beginning.”
In this presentation Dr. Goodstein examines the rapid disappearance of oil and predicts its depletion will arrive much sooner than projected. Imagining a world caught suddenly, and perhaps unprepared, without oil, Dr. Goodstein discusses the alternatives and their implications for the environment.
Lewison Lem, Principal Consultant of Parsons Brinckerhoff, on reducing the climate impact of the transportation system.
View paper: Transportation Strategies to Mitigate Climate Change
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The video begins at 1:49.
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