Tales from TRB: L.A. gets moving

Jan 25, 2011

Tuesday, Jan. 25 dispatch from the Transportation Research Board annual meeting:

Sometimes even stimulus needs a little stimulus. That was certainly true in Los Angeles County, faced with a backlog of transportation needs.

Doug Failing, chief planner with the Los Angeles County Metropolitan Transportation Authority, or Metro, spoke at a session at the Transportation Research Board's annual meeting titled “How the implementation of ARRA-TIGER projects was accelerated: a tale of four cities.”

The Los Angeles tale is one of good fortune and good timing. As talk of a federal stimulus package was heating up, the county passed Measure R in November 2008. The sales tax measure would commit a projected $40 billion to transportation projects over the next 30 years.

The federal stimulus project gave that effort a boost when it passed in early 2009. Metro then took a further step, Failing said: the agency would speed up 12 key mass-transit projects to be completed within 10 years instead of 30.

Transportation-system investments have gone a long way toward moving people more efficiently in an area known for its gridlock. Once the worst metro area in the country in terms of hours spent in traffic, that number has declined over the last decade, with other cities taking over...

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Transit stations operate in sweet microenvironment

Dec 06, 2010

Even residents of a gingerbread candyland can't get around with holiday magic alone. After all, Santa's elves still need a reliable way to get from their cozy homes to the workshop.

Sadly, transportation planners have turned a frosty shoulder to sugar-based transit systems. Until now.

On Dec. 3, Portland State University's Students in Transportation Engineering and Planning held the first gingerbread transit station competition. Four teams of students pulled their attention away from human transit to focus on the needs of gingerbread people and misfit toys.

Dealing with building materials of unknown structural properties, students field engineered solutions. Licorice sticks stood in for steel rails, candy canes for bicycle racks. For a binding agent, students mixed cream of tartar and egg whites instead of portland cement.

The resulting transit system has already resulted in fewer traffic gum-ups and a drastic reduction in ultrafine powdered-sugar emissions. Sleigh-travel-time reliability has also improved.

Researchers are now assessing the durability of corn-syrup-reinforced composites in candy bridges, the potential for alkali-silica reaction in gingerbread pavement and the possibility that someone hungry will stumble in and eat the infrastructure.

The winning design team was Transit Wonderland, composed of Jesse Boudart, Sara Morrissey, Mark Haines and Meeyonwoo Lim.

FTA Perspective on Regional Implications of the Federal Livability Initiative

Jan 07, 2010

Rick Krochalis, Federal Transit Administration (FTA) Region X Administrator, recently kicked off the Center for Transportation Seminar Series on January 8th with a presentation on the Regional Implications of the Federal Livability Initiative. The presentation touched on the federal interagency partnership in addition to FTA’s involvement in the effort. Smart growth and transit-oriented development are not new concepts.  With growing congestion, energy use, greenhouse gas emissions, needs for maintaining a state of good repair on existing transportation systems in addition to a growing and aging and population in the United States; transit is playing a key role in helping address these issues.The seminar was followed with with a roundtable group discussion with TriMet and local partners; and meeting with faculty and students highlighting transit-related research. You can download the podcast or view the seminar if you missed the presentation.   Livability is also the theme for the winter transportation seminar series.

LaHood in Portland to Unveil First Streetcar Built in US in Nearly 60 Years

Jun 30, 2009

Secretary of Transportation Ray LaHood proclaims “Portland is the transportation capital of the United States…” as part of his speech unveiling the Portland-made streetcar, the first to be built in the US in nearly 60 years. OTREC staff were present to witness this historic moment for Portland, in addition to having the opportunity to meet and talk with other leaders in transportation from Oregon. Pictured left: Jon Makler, Lily Makler, Congressman Peter DeFazio, and Hau Hagedorn Pictured right: Transportation Secretary Ray LaHood

Visiting Scholar Peter Furth in Portland, 5/26-29

May 21, 2009

Northeastern Universityís Peter Furth is known equally for his research in public transportation, bike planning and traffic signals. Furth brings his diverse interests to Portland for the holiday-shortened week of May 25th. On Tuesday, 5/26, there will be a seminar on his traffic signal priority work and on Wednesday, 5/27, there will be another seminar on his work regarding cycle tracks. In addition, Furth will have a variety of meetings with local transportation practitioners, including a bike tour by staff from the Portland Bureau of Transportation. The visit is co-sponsored by OTREC and IBPI. For more information about the seminars, visit PSU's Center for Transportation Studies.

Visiting Scholar: Brian Taylor, UCLA

Nov 15, 2007

Dr. Brian Taylor, Professor in Urban Planning and Director of the Institute of Transportation Studies at UCLA, was the guest speaker and OTREC Visiting Scholar for the CTS Transportation Seminar on November 16, 2007. Dr. Taylor presented "Transit’s Dirty Little Secret: Analyzing Patterns of Transit Use." Later in the day, he was also the keynote speaker at the fall TransNow Student Conference at PSU, presenting "Rethinking Congestion" to the group of students from around the northwest. Professor Taylor’s research centers around transportation policy and planning. In particular, his work explores how society pays for transportation systems and how these systems in turn serve the needs of people who have low levels of mobility.

TRB Showcase of Portland State University student research in transportation: Part 2

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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Transit's Dirty Little Secret: Analyzing Patterns of Transit Use

View slides

The video begins at 8:08.

Friday Transportation Seminar: Utilizing High-Resolution Archived Transit Data to Study Before-and-After Travel-Speed and Travel-Time Conditions

SEMINAR VIDEO

Utilizing High-Resolution Archived Transit Data


SEMINAR SLIDES
Missed the presentation or want to look back at the slides? View the slides here.

Travel times, operating speeds, and service reliability influence costs and service attractiveness. This research outlines an approach...

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Identifying Market Segments based on Observed Travel and Activity Patterns

The video begins at 1:47.

Abstract: In transportation planning and engineering, market segments or groups of individuals with varying attitudes and travel behavior are often identified in order to define a set of policies and strategies targeted at each segment. Examples include residential location choice studies, electric vehicle adoption and the marketing of public transit options. Defining market segments is common in the marketing literature, typically based on observed socioeconomic characteristics, such as gender and income. However, in addition to these characteristics, travelers may also be segmented based on variations in their observed travel and activity patterns. The activity-based approach to travel demand analysis acknowledges the need to analyze the travel patterns of individuals, conceptualized as a trip chain or tour, as opposed to individual trip segments. This has implications for identifying markets segments based on travel patterns which needs to distinguish between the sequencing and timing of travel choices and activities, in addition to the actual travel choices and activities. One approach that holds promise is pattern recognition theory which has wide applications in image analysis, speech recognition and physiological signal processing. In this study, pattern recognition methods are applied to observed daily travel and activity patterns from Oregon to identify travel market...

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