Please join the Portland State University Intelligent Transportation Lab and the Oregon Transportation Research and Education Consortium as we host a Transportation Research Board webinar on climate change mitigation and adaptation, followed by an informal discussion on climate change transportation impacts and planning in the Pacific Northwest. This webinar will explore the findings of Transportation Research Board Special Report 299: A Transportation Research Program for Mitigating and Adapting to Climate Change and Conserving Energy. Committee chair, Michael Meyer, will provide an overview of the research programs recommended by the committee that can be used to develop guidance to policy makers. When: Wednesday, December 2, 2009 Where: Portland State University Intelligent Transportation System Lab 1930 SW 4th Ave, Room 315 Time: 11 am - 12:45 pm
Portland State University faculty and students presented their work at the National Urban Freight Conference (NUFC) in Long Beach, CA October 21-23, 2009. Dr. Miguel Figliozzi presented "Emissions & Energy Minimization Vehicle Routing Problem" and "A Study of Transportation Disruption Causes and Cost in Containerized Maritime Transportation." Also, graduate research assistants Ryan Conrad and Nikki Wheeler presented research projects sponsored by OTREC. Ryan presented "Algorithms and Methodologies to Analyze and Quantify the Impacts of Congestion on Urban Distribution Systems Using Real-world Urban Network Data" and Nikki presented "Analysis of the Impacts of Congestion on Freight Movements in the Portland Metropolitan Area." NUFC brings together researchers and practitioners in the public and private sectors from many disciplines within freight transportation. This conference is the only one of its kind in the US, and brought attendees and presenters from across the US, Canada and Europe.
View Blanc's slides
View Mathez's slides
The video begins at 0:33.
Following the 2015 annual meeting of the Transportation Research Board, this Friday seminar will showcase some of Portland State University's student TRB research.
Presenters:
Bryan Blanc, GRA in civil and environmental engineering
Leveraging Signal Infrastructure for Non-Motorized Counts in a Statewide Program: A Pilot Study
Summary: Transportation agencies are beginning to explore and develop non-...
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PRESENTATION ARCHIVE
Miss the webinar or want a look back?
OVERVIEW
With worsening congestion, travel time reliability is increasingly becoming as critical as average travel times in affecting travel choices. Researchers from Portland State University (PSU) partnered with Washington County, Oregon to offer data-driven strategies in prioritizing funding for travel time reliability improvements on their urban arterials. The vast majority of existing research on travel time reliability has focused exclusively on freeways. Avinash Unnikrishnan, Sirisha Kothuri and Jason C. Anderson leveraged Bluetooth sensors provided and deployed by Bluemac Analytics to identify problem areas in the county. Set up at intersections throughout Washington County, the sensors are able to calculate travel time from one intersection to another by matching Bluetooth signals from devices in people's cars. The researchers evaluated the Bluetooth travel time data to understand the temporal variation in travel time reliability metrics on these urban arterials, including factors related to time of day, weather, and holidays....
Read moreThe video begins at 3:22.
Steve Gehrke (CEE PhD) - Application of Geographic Perturbation Methods to Residential Locations in the Oregon Household Activity Survey: Proof of Concept
Travel demand models have advanced from zone-based methods to favor activity-based approaches that require more disaggregate data sources. Household travel surveys gather disaggregate data that may be utilized to better inform advanced travel demand models and also improve the understanding of how nonmotorized travel is influenced by a household’s surrounding built environment. However, the release of these disaggregate data is often limited by a confidentiality pledge between the household participant and survey administrator. Concerns regarding the disclosure risk of survey respondents to household travel surveys must be addressed before these household-level data may be released at their disaggregate geography. In an effort to honor this confidentiality pledge and facilitate the dissemination of valuable travel survey data, this research: (i) reviews geographical perturbation methods that seek to protect respondent confidentiality; (ii) outlines a procedure for implementing one promising practice, referred to as the donut masking technique; and (iii) demonstrates a proof of concept for this technique on ten respondents to a household activity travel survey in the Portland metropolitan region. To examine the balance...
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We are committed to making decisions that promote the success and well-being of our campus community. Like an increasing number of universities nationwide, Portland State is taking steps to respond to the global pandemic. Until further notice, all live events hosted by TREC will be online only.
Friday Transportation Seminars at Portland State University have been a tradition since 2000. You can join us online at 11:30 AM.
PRESENTATION ARCHIVE
THE TOPIC
As transit agencies modernize their fare payment systems, opportunities to pay with cash are reduced. This speeds boarding and lowers the cost of operations while also creating new sources of ridership data. Arguably, service is improved for riders as well as payment systems could work across modes,...
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View Steven Gehrke's slides
View Kihong Kim's slides
Following the 2015 annual meeting of the Transportation Research Board, this Friday seminar will showcase some of Portland State University's student TRB research.
Presenters:
Steven Gehrke, GRA in civil and environmental engineering
Toward a Spatial-Temporal Measure of Land Use Mix
Summary: Urban policies have emphasized the importance of mixing land uses in a neighborhood as an intervention beholding of lasting planning and public health benefits. Transportation planning research has identified the potential of efficiency... Read more
In honor of our 10-year anniversary, we’re trying something a little different. Instead of brief sessions that introduce you to a topic– we will be offering fifteen half-day workshops that focus on skill building and providing the tools to apply the latest research to practice. These will be hands-on, immersive learning experiences in a small classroom setting.
REGISTRATION
This event is a la carte, and pricing is per workshop. You may attend as few as one, or as many as four workshops.
- Half-Day Workshop (general admission): $95
- Half-Day Workshop (student rate): $50
THE PROGRAM
⇨SEE THE FULL SCHEDULE AND DETAILS
- Survey Design: Asking the Right Questions
- Bicycle/Pedestrian Focused Signal Timing Strategies: What, When, Where, Why, and How?
- Activating Community Opportunities Using Transportation Organizations as Assets
- Cost Accounting for Program and Budget Planning Today and Tomorrow
- Data Analysis for Smarties Who Forgot What They Learned in College
- What’s New in the HCM 6th Edition?
- Ecological Momentary Assessment Methods with Transportation Disadvantaged Populations
- Calculating...
The video begins at 2:51.
Adam Moore: Bus Stop Air Quality: An Empirical Analysis of Exposure to Particulate Matter at Bus Stop Shelters
Congested traffic corridors in dense urban areas are key contributors to the degradation of urban air quality. While waiting at bus stops, transit patrons may be exposed to greater amounts of vehicle-based pollution, including particulate matter, due to their proximity to the roadway. Current guidelines for the location and design of bus stops do not take into account air quality or exposure considerations. This study compares the exposure of transit riders waiting at three-sided bus stop shelters that either: 1) face the roadway traffic or 2) face away from the roadway traffic. Shelters were instrumented with air quality monitoring equipment, sonic anemometers, and vehicle counters. Data were collected for two days at three shelters during both the morning and afternoon peak periods. Bus shelter orientation is found to significantly affect concentration of four sizes of particulate matter: ultrafine particles, PM1, PM2.5, and PM10. Shelters with an opening oriented towards the roadway were consistently observed to have higher concentrations inside the shelter than outside the shelter. In contrast, shelters oriented away from the roadway were observed to have lower concentrations inside the shelter than outside the shelter. The differences in particulate matter...
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PRESENTATION ARCHIVE
OVERVIEW
Since 2005, Portland State University has periodically surveyed occupants of recently developed higher-density and mixed-use projects near transit, often referred to as Transit-Oriented Developments (TODs). The general objectives of the surveys were to better understand actual transit use, among other factors, of residents in these buildings. Between 2005 and 2018, the research team surveyed residents of nearly 50 TODs. With funding from Metro and the National Institute for Transportation and Communities, the research team carried out a two-pronged study drawing on this wealth of data. First, we explore geographic differences within the Portland region in terms of travel behavior and attitudes of TOD residents, including differences between TODs within the city of Portland, in eastside suburbs, and in westside suburbs. Second, we conducted a second wave of surveys for select TODs to understand if travel behavior or attitudes changed over time, particularly as neighborhoods surrounding the buildings were built up. In this webinar, we will present select findings from both aspects of the study.