21st Century Smart Truck and Smart Back Office Technologies
Friday, February 6, 2009, 12:00pm to 1:00pm PSTDiverging Diamond Interchanges: Answers to Frequently Asked Questions
Friday, January 30, 2009, 12:00pm to 1:00pm PSTThe video begins at 4:04.
The Effects of Data Aggregation on Measuring Arterial Performance
Friday, January 23, 2009, 12:00pm to 1:00pm PSTThe proliferation of information technology in the transportation field has opened up opportunities for communication and analysis of the performance of transportation facilities. The Highway Capacity Manual relies on rules of thumb and small data samples to generate levels of service to assess performance, but modern detection technology gives us the opportunity to better capture the dynamism of these systems and examine their performance from many perspectives. Travelers, operations staff, and researchers can benefit from measurements that provide information such as travel time, effectiveness of signal coordination, and traffic density. In particular, inductive loop detectors show promise as a tool to collect the data necessary to generate such information. But while their use for this purpose on restricted‐access facilities is well understood, a great many challenges remain in using loop detectors to measure the performance of surface streets.
This thesis proposes 6 methods for estimating arterial travel time. Estimates are compared to simulated data visually, with input/output diagrams; and statistically, with travel times. Methods for estimating travel time are applied to aggregated data and to varying detector densities and evaluated as above. Conclusions are drawn about which method provides the best estimates, what levels of data aggregation can still provide useful information, and what the effects of detector density are on the quality of estimates....
Read moreWillamette River Crossing (Portland-Milwaukie Light Rail Project)
Friday, January 16, 2009, 12:00pm to 1:00pm PSTTopic: Willamette River Crossing (Portland-Milwaukie Light Rail Project)
View slides
The video begins at 6:38.
Global Warming Transportation Solutions Via Social Marketing
Friday, January 9, 2009, 12:00pm to 1:00pm PSTView background information (Press Release: Governor Praises State Employees for Exceeding Commuter Challenge Goal)
The video begins at 0:07.
Fringe Urbanism: Potential Transportation Patterns In Overlooked Suburban Density
Friday, December 5, 2008, 12:00pm to 1:00pm PSTThe video begins at 1:22.
Portland is good, but Copenhagen and Amsterdam are awesome: Lessons Learned from the world's best large cycling cities
Friday, November 21, 2008, 12:00pm to 1:00pm PSTThe founders and board members of IBPI talk about lessons learned from the world's best large cycling cities.
View slides
The video begins at 2:54.
Out of Gas: The End of the Age of Oil
Friday, November 14, 2008, 12:00pm to 1:00pm PSTView flyer
View slides
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.