Portland State University

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.

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

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.

The video begins at 2:25.

View slides

Topic: Using "big data" for transportation analysis: A case study of the LA Metro Expo Line

Summary: Access to a comprehensive historical archive of real-time, multi-modal multi-agency transportation system data has provided a unique opportunity to demonstrate how “big data” can be used for policy analysis, and to offer new insights for planning scholarship and practice. We illustrate with a case study of a new rail transit line. We use transit, freeway, and arterial data of high spatial and temporal resolution to examine transportation system performance impacts of the Exposition (Expo) light rail line (Phase 1) in Los Angeles. Using a quasi-experimental research design, we explore whether the Expo Line has had a significant impact on transit ridership, freeway traffic, and arterial traffic within the corridor it serves. Our results suggest a net increase in transit ridership, but few effects on traffic system performance. Given the latent travel demand in this heavily congested corridor, results are consistent with expectations. The benefits of rail transit investments are in increasing transit accessibility and person throughput within high-demand corridors; effects on roadway traffic are small and localized. 

Bio: Mohja Rhoads...