Transportation Commons^™

What Do Americans Think About Federal Tax Options To Support Transportation? Results From Year Eleven Of A National Survey, Asha W. Agrawal, Hilary Nixon

Mineta Transportation Institute

This report summarizes the results from the eleventh year of a national public opinion survey asking U.S. adults questions related to their views on federal transportation taxes. A nationally-representative sample of 2,515 respondents completed the online survey between February 14 and 28, 2020.

The questions test public opinions about raising the federal gas tax rate, replacing the federal gas tax with a new mileage fee, and imposing a mileage fee just on commercial travel. In addition to asking directly about support for these tax options, the survey collected data on respondents’ views on the quality of their local transportation system, …

Final Project Report, Anurag Pande, Subhrajit Guhathakurta

CTEDD Final Project Reports - Archive

No abstract provided.

The Indian Railways: On Track For Transformation, Philip Charles Zerrillo

Asian Management Insights

Manoeuvring infrastructure and digitisation challenges on a massive track network that runs nearly 70,000 route kilometres.

Matching The Speed Of Technology With The Speed Of Local Government: Developing Codes And Policies Related To The Possible Impacts Of New Mobility On Cities, Marc Schlossberg, Heather Brinton

TREC Final Reports

Advances in transportation technology such as the advent of scooter and bikeshare systems (micromobility), ridehailing, and autonomous vehicles (AV’s) are beginning to have profound effects not only on how we live, move, and spend our time in cities, but also on urban form and development itself. These new technologies are changing the systems of transport, the layout of cities, and the places we spend our time. In turn, these changes will likely have additional and profound effects on land use, street design, parking, housing, equity, municipal finance, and fundamental issues related to urban density, sprawl, vitality and the economic viability …

Clackamas Community College Shuttle Service And Access Plan, Shiori Azumaya, Ryan Mckinnon, Christina Winberry, Daisy Quinonez, Baxter Shandobil, Andre Lightsey-Walker

Master of Urban and Regional Planning Workshop Projects

Addressing transportation-related barriers is an essential part of Clackamas Community College's mission to make education more accessible. This plan provides a student-centered analysis of barriers that make it difficult for students with limited access to personal vehicles to access CCC’s Oregon City and Harmony campuses and identifies strategies to overcome them. The plan focuses on the CCC Xpress Shuttle, which sees over 26,500 trips per academic year, and on the compounded barriers facing students of color, low-income students, and students with disabilities.

Steering New Mobility In The Right Direction: Matching The Speed Of Technology With The Speed Of Local Government, Marc Schlossberg, Heather Brinton

TREC Project Briefs

Advances in transportation technology — e-scooters and bike share, Lyft & Uber, and autonomous vehicles — are beginning to have profound impacts on cities. New mobility is changing not only how we travel, but also urban form and development itself. In the near future, we can expect differences in what public transit looks like, the layout of cities, and the places we spend our time. In turn, these changes will likely have additional effects on land use, street design, parking, housing, equity, and municipal finance. Will cities be ready to meet these changes? Rather than be swept along in the …

Assessing Complete Street Strategies Using Microscopic Traffic Simulation Models, Bernice Liu, Alireza Shams, Jonathan Howard, Serena Alexander, Alex Hughes, Anurag Pande

Mineta Transportation Institute

Authors of this research developed a traffic simulation model for the downtown San Jose network and evaluated five different street redesign and travel demand combinations. This model aids understanding of network-wide effects of changes in street design for local and regional agencies who are interested in implementing complete streets and/or one-way to two-way conversion. The base network may be altered to model and evaluate other complete streets (e.g., road diet) and tactical urbanism (e.g., farmer’s market on city streets on certain days of the week) scenarios. The 3-dimensional animated videos for each scenario are also created to be used for …

Goods Consumed During Transit In Split Delivery Vehicle Routing Problems: Modeling And Solution, Wenzhe Yang, Di Wang, Wei Pang, Ah-Hwee Tan, You Zhou

Research Collection School Of Computing and Information Systems

This article presents the modeling and solution of an extended type of split delivery vehicle routing problem (SDVRP). In SDVRP, the demands of customers need to be met by efficiently routing a given number of capacitated vehicles, wherein each customer may be served multiple times by more than one vehicle. Furthermore, in many real-world scenarios, consumption of vehicles en route is the same as the goods being delivered to customers, such as food, water and fuel in rescue or replenishment missions in harsh environments. Moreover, the consumption may also be in virtual forms, such as time spent in constrained tasks. …

"I Should Have Moved Somewhere Else": The Impacts Of Gentrification On Transportation And Social Support For Black Working-Poor Families In Portland, Oregon, Steven Anthony Howland

Dissertations and Theses

Portland has faced a mass displacement of Black households from the historically segregated area of Albina through various phases of urban renewal, urban deterioration, and gentrification. A substantial number of them have moved to East Portland, a suburban segment of the City of Portland that was unincorporated county land prior to the 1990's. As Black people have left Albina, the roots of Blackness there have eroded from the area as businesses and churches catering to them have also closed as a result of lost patrons.

In this study I interviewed 27 low-income working-age Black people with children with the sample …

Understanding Technology-Based Exclusion In Emerging Smart Mobility Systems, John Macarthur, Aaron Golub

PSU Transportation Seminars

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, creating a more seamless and simplified experience. Still, about 15% of adults in the United States are without a bank account or credit card account and many rely on restrictive cell-phone data plans or don’t have access to a smartphone. These shares are even higher for public transit users. These un- and under-banked …

Suitability Of Fusing Vehicle Probe Data And Vessel Data To Contextualize The Multimodal Interaction Impacts On Corridor Mobility – A New Orleans Case Study, Kirk Zeringue

LSU New Orleans Theses and Dissertations

Using New Orleans as a case study, this thesis explores the conflation of vehicle probe data with various vessel datasets to characterize the interactions between container vessels and motor vehicles as it relates to interstate congestion in a port city. The case study investigates the impact of container vessel presence/size, fluctuations in container volumes, and container on barge services on roadway congestion. The exploration relies on comparing different conditions using cumulative distribution functions and the Innovative Trend Analysis. The results showed that fusing vehicle and vessel data is achievable and appropriate, but temporal and data completeness issues can effect results. …

Portland’S I-5 Expansion: Evaluating The Environmental And Cultural Impact Of Odot's Rose Quarter Improvement Plan, Mason Ashmore

University Honors Theses

To this day highway expansion remains one of the primary techniques employed to combat urban automobile congestion during peak hours. This paper examines the cultural and environmental shortcomings of Portland, Oregon's I-5 highway expansion project. Research for this paper primarily cites existing academic studies relating to highway expansion, Portland's complicated relationship with urban renewal, and highway expansion alternatives. The evidence suggests that Oregon's expansion project would have less than optimal impact and the resources could be used better elsewhere.

Driving Disruption: Assessing Uber's Corporate Identity In The Battle Over Driver Classification, Benjamin Peterson

Master's Projects and Capstones

This research analyzes the ongoing effort by Uber’s executives to prevent the reclassification of the company’s drivers from independent contractors to employees. Through rhetorical appeals made to customers, regulatory bodies, and drivers themselves, Uber’s executives are attempting to cultivate a corporate identity that portrays the company’s labor practices in a way that adheres to California’s labor laws, namely the “ABC” test for worker classification codified in Assembly Bill 5, while maintaining the company’s ill-gotten reputation as a bastion of Silicon Valley innovation. The success of this posturing hinges on attempts to conflate Uber’s labor practices with equitable social outcomes, publicize …

Webinar: Natural Pozzolans In The Pacific Northwest And Their Beneficial Uses, Matthew D. Sleep

TREC Webinar Series

The eruption of Mt. Mazama approximately 7,700 years ago created what is now known as Crater Lake. This eruption blanketed the Pacific Northwest with volcanic ash. This volcanic ash has been collected from several locations in Southern Oregon near the Oregon Institute of Technology campus. This volcanic ash has been tested and shown to have properties beneficial of a natural pozzolan. This seminar will present the results of a significant laboratory program to determine the natural pozzolanic capabilities of Mt. Mazama volcanic ash. In addition, information will be presented on a field application using the material to create ADA accessible …

Still Careless: Findings From A Cross-Sectional Study Of Young Pedestrians’ Risky Road Crossing Behaviors, Mina Hashemiparast, Manoj Sharma, Mohammad A. Jafarabadi, Zahra Hosseini

Environmental & Global Health Faculty Research

Background: Pedestrian-vehicle collision is one of the most common traffic injuries worldwide. This study aimed to investigate the determinants of pedestrians’ road crossing beliefs and behaviors in potentially risky situations using the Theory of Planned Behavior among Iranian young adults. Methods: This was a population-based study on a sample of 562 young adults aged 18 to 25 years living in Tehran, Iran. Data were collected by using a self-administered validated questionnaire including constructs of the theory of planned behavior and items of perceived risk and severity. The data were analyzed using independent t-test, analysis of covariance and multivariate analysis of …

Safe Speeds Save Lives: How Portland Is Managing Speeds For Safety, Matt Kelly

PSU Transportation Seminars

Speed is a key factor in how people experience Portland’s streets. Appropriate speeds help prevent crashes, reduce the harmful consequences of crashes, and can help streets become more comfortable and sociable spaces that support a variety of travel modes and uses. The Portland Bureau of Transportation will share information on how the City of Portland is supporting safe travel speeds through its Vision Zero work. Topics will include the left turn calming pilot project, speed safety cameras, speed limit reductions, and road reorganizations. Data on the results of these interventions will be shared, along with discussion of next steps for …

Webinar: Connected Vehicle System Design For Signalized Arterials, Xianfeng Terry Yang

TREC Webinar Series

It can be expected that connected vehicles (CVs) systems will soon go beyond testbed and appear in real-world applications. To accommodate a large number of connected vehicles on the roads, traffic signal control systems on signalized arterials would require supports of various components such as roadside infrastructure, vehicle on-board devices, an effective communication network, and optimal control algorithms. In this project, we aim to establish a real-time and adaptive system for supporting the operations of CV-based traffic signal control functions. The proposed system will prioritize the communication needs of different types of CVs and best utilize the capacity of the …

Creating And Using A Publicly Available Multimodal Transportation Data Archive, Tammy Lee, Kristin A. Tufte

PSU Transportation Seminars

PORTAL provides a centralized, electronic database that facilitates the collection, archiving, and sharing of data and information for public agencies within the region. The data stored in PORTAL includes 20-second granularity loop detector data from freeways in the Portland-Vancouver metropolitan region, arterial signal data, travel time data, weather data, incident data, VAS/VMS message data, truck volumes, transit data, and arterial signal data. Many of these data feeds are received by PORTAL in real time or on a daily basis and for most, the retrieval and archiving process is fully automated.

BikePed Portal: Jurisdictions around the country are collecting non-motorized …

Ada Accessible Trail Improvement With Naturally Occurring, Sustainable Materials, Matthew D. Sleep, Damian K. Matzen

TREC Final Reports

The Americans with Disabilities Act (ADA) provides specific guidelines and requirements that must be met in terms of accessibility. However, in the case of unpaved trails, the requirements are less defined. An ADA trail must be firm, stable and slip resistant. Some compacted aggregate material may meet this definition, but degrade over time and can no longer be ADA compliant. The benefits of using unpaved surfaces for ADA trails include fit to the natural environment, cost, sustainability and environmental benefits such as increased permeability. If an unpaved surface can be improved with the use of an additive, more could be …

Toward Safer Skies: An Analysis Of Global Governance Gaps And Civil Aviation Accidents, Richard Austin Gunderson

Undergraduate Honors Theses

Billions of people around the world use the global airspace system for their travel needs every year. Given the rising number of passengers traveling by air annually, it is crucial that pilots, airlines, regulatory agencies, governments, and international organizations work together to ensure the integrity of a safe and efficient global airspace system. While air travel is statistically one of the safest forms of transportation, accidents in which civilian aircraft operating on standard routes and schedules are shot down are not unprecedented. Not all airspace around the globe designated for civilian use is free from geopolitical conflict. In this project, …