Urban Studies Commons^™

Dynamic Assignment Models And Their Application In The Portland Metro Region, Peter G. Bosa

PSU Transportation Seminars

Metro's Research and Modeling Services Program is responsible for the development, maintenance, and application of travel demand models for application in long-range planning efforts in the Portland metropolitan region.

Representation of traffic—both vehicular and transit—plays an integral role in the travel demand modeling process. Complex software is required to assign vehicles and transit users to transportation networks to determine viable options available to travelers, costs associated with those options, and sets of routes by which travelers might navigate their trips.

Metro's current static assignment model has traditionally sufficed for use with Metro's four-step travel demand model. However, static assignments have …

Explaining Unequal Transportation Outcomes In A Gentrifying City: The Example Of Portland, Oregon, Eugenio Arriaga Cordero

Dissertations and Theses

This dissertation examines unequal outcomes of urban transportation policies in the neoliberal era. It focuses on inequalities in the Portland, Oregon metro area between 1994 and 2011 as measured in three key areas: 1) access to public transit; 2) the journey-to-work; and 3) "household-serving" trips. Growing concern over the harmful impacts from an increasing dependence on cars has led planners in the U.S. to encourage a modal shift from private car to public transit, bicycling, and walking. The required policies to make this modal shift possible, however, might inadvertently be benefiting "choice" riders at the cost of transport disadvantaged groups. …

The Intentional Student: Strategies To Help Students Of Low-Socioeconomic Status Succeed At Post-Secondary Institutions, Patrick L. Phillips

National Youth Advocacy & Resilience Conference

The Intentional Student: Strategies to Help Students of Low Socioeconomic Status Succeed at Post-Secondary Institutions, is structured in three phases: The Prerequisites, The Process and The Exodus. Attendees will take a journey in the same manner students navigate the college experience. (The Prerequisites)-areas that are completed and mastered before college, (The Process)-tasks and areas that are mastered while in college and (The Exodus)-areas mastered upon conclusion of college to obtain gainful employment. The target audience is educators, school counselors, mentors, therapist, and school social workers.

Metropolitan Centers Mean Smart Growth, Richard D. Margerum, Rebecca Lewis, Keith Bartholomew

TREC Project Briefs

In this study, a multidisciplinary team from the University of Oregon and the University of Utah examined regional metropolitan center programs and policies in the Salt Lake City and Denver regions. The goal of the study was to examine this topic on two levels. First, to learn how and why local governments have adopted the concepts of metropolitan centers over time and the related supporting and constraining factors. Second, to understand how demographics, land use, and transportation choices have changed over time in the designated centers.

Making Every Mode Count In Washington State, Krista Nordback

TREC Project Briefs

A NITC report by Krista Nordback of Portland State University offers a step toward establishing a performance metric by which statewide progress with respect to bicycling and walking can be evaluated. The Washington State Pedestrian and Bicycle Miles Traveled Project discusses the relative merits of three different methods which can be used to compute bicycle miles traveled (BMT) and pedestrian miles traveled (PMT).

Metropolitan Centers: Evaluating Local Implementation Of Regional Plans And Policies, Richard D. Margerum, Keith Bartholomew, Rebecca Lewis, Robert Parker, Stephen Dobrinich

TREC Final Reports

The Denver and Salt Lake City Metropolitan Planning Organizations (MPOs) have embarked upon regional visioning strategies that promote development around higher density, mixed use centers with current or future access to transit. This study examines the programs and policies in the Salt Lake City and Denver regions to examine regional vision influence on local planning and the opportunities and constraints facing centers. The research team analyzed local plans over the past several decades, interviewed planners, and examined demographic, land use and transportation characteristics in select centers across the region. We found that the regional vision had a moderate influence on …

Modeling And Analyzing The Impact Of Advanced Technologies On Livability And Multimodal Transportation Performance Measures In Arterial Corridors: Phase 2, Miguel A. Figliozzi, Chawalit Tipagornwong

TREC Final Reports

Transportation corridors are complex systems. Tradeoffs, particularly in terms of traffic mobility, transit performance, accessibility and pedestrian interactions, are not well understood.When the focus is on motorized vehicle mobility and throughput, high traffic or vehicle speeds are desirable because at high speeds more vehicles can flow per unit of time and roadway section. However, high traffic/vehicles speeds are not desirable for pedestrians who have to cross urban arterials. In particular, pedestrians can be highly vulnerable at unsignalized, marked crosswalks where pedestrians have the right of way but where drivers’ yield rates are significantly lower than at signalized intersections. Pedestrians are …

Access To Taxicabs For Unbanked Households: An Exploratory Analysis In New York City, David A. King, Juan Francisco Saldarriaga

Journal of Public Transportation

Taxicabs are critical complements to public transit systems. In New York City, ubiquitous yellow cabs are as iconic as the city’s subway system, and the city recently added green taxicabs to improve taxi service in areas outside of the Central Business Districts and airports. In this paper, we used multiple datasets to explore taxicab fare payments by neighborhood and examine how paid taxicab fares are associated with use of conventional banking services. There are clear spatial dimensions of the propensity of riders to pay cash, and we found that both immigrant status and being “unbanked” are strong predictors of cash …

Identifying Key Factors Of Rail Transit Service Quality: An Empirical Analysis For Istanbul, Erkan Isikli, Nezir Aydin, Erkan Celik, Alev Taskin Gumus

Journal of Public Transportation

Providing a high quality of service in public transportation is essential to reduce dissatisfactions stemming from traffic congestion and noise. Public transport providers need to find ways to dilute the effects of immoderate use of private cars in big cities while maintaining a sufficient level of customer satisfaction. This study aimed to identify the key service quality (SQ) factors that drive passenger satisfaction in Istanbul’s rail transit (RT) system using data obtained from an extensive survey conducted by the Istanbul Public Transportation Co. A total of 11,116 passengers who used rail transport from May 15–June 3, 2012, and June 17–July …

The Causal Effect Of Bus Rapid Transit On Changes In Transit Ridership, Orion T. Stewart, Anne Vernez Moudon, Brian E. Saelens

Journal of Public Transportation

Numerous studies have reported ridership increases along routes when Bus rapid transit (BRT) replaces conventional bus service, but these increases could be due simply to broader temporal trends in transit ridership. To address this limitation, we compared changes in ridership among routes where BRT was implemented to routes where BRT was planned or already existed in King County, Washington. Ridership was measured at 2010, 2013, and 2014. Ridership increased by 35% along routes where BRT was implemented from 2010 to 2013 compared to routes that maintained conventional bus service. Ridership increased by 29% along routes where BRT was implemented from …

Destination Portland: Post-Great Recession Migration Trends In The Rose City Region, Jason R. Jurjevich, Greg Schrock, Jihye Kang

Publications, Reports and Presentations

This report explores how individuals decide to move to Portland, why they stay and how the region’s growth challenges might introduce costs that disproportionately burden people of color and young people of lower socioeconomic status.

Estimating Walking And Bicycling At The State Level, Krista Nordback, Mike Sellinger, Taylor Phillips

TREC Final Reports

Estimates of vehicle miles traveled (VMT) drive policy and planning decisions for surface transportation. No similar metric is computed for cycling and walking. What approaches could be used to compute such a metric on the state level? This report discusses three such approaches, identifies the advantages and disadvantages of each, and applies them to Washington State. The first approach employs travel survey data. The second approach is sample-based using pedestrian and bicycle count data. The third approach is an aggregate demand model approach using demographic data combined with count data. Due to data limitations, none of these methods could be …

A Model For Better Crosswalk Safety, Miguel Figliozzi

TREC Project Briefs

NITC researchers from Portland State University developed models to find what factors affected vehicles’ compliance with pedestrian safety laws.

The results suggest that treatments discouraging accelerating toward a crosswalk could help increase pedestrian safety.

Mobile Cities, Modelling Policies: Importing/Exporting The Singapore ‘Model’ Of Development, Orlando Woods, Lily Kong

Research Collection School of Social Sciences

A recent focus of research has been the making, mobility and mutations of urban policy. The global circulation of urban models – or exemplars of best practices and values that are deemed to be desirable and achievable – has gained significant traction. Such models are those that are dislocated from their place of origin, and transplanted to an adopted site. This chapter draws on the case of Singapore: one of the most emblematic examples of an importable/exportable urban model – a prototype for growth-oriented urban development with its normative and technical plans for growth and management – to foreground problems …

From An Emerging Market To A Multifaceted Urban Society: Urban China Studies, Shenjing He, Junxi Qian

Research Collection School of Social Sciences

China is undergoing an urban revolution. In 2011 more than half of the total population resided in cities and towns for the first time in history. Over the last two decades urban China scholars have actively engaged in dialogues with urbanists from different disciplines and different urban contexts. In consequence, urban China studies have embarked on a trail of rapid diversification and proliferation, moving beyond the topics of urbanisation and urban expansion to address a variety of issues echoing the latest developments in the Chinese city. Overall, urban China studies are witnessing a transition from a focus on economic development …

Impact Of Bike Facilities On Residential Property Prices, Wei Shi

PSU Transportation Seminars

As many cities are investing in street improvement or transportation infrastructure upgrade projects to provide better bike access or more complete bike networks, the economic value of bike infrastructure and bike facilities remains an area where many practitioners, planners and policy makers are seeking more conclusive evidence. Using residential property values as indicators of consumer preferences for bicycle infrastructure, this study focuses on advanced bike facilities which represent higher levels of bike priority or bike infrastructure investments that have been shown to be more desirable to a larger portion of the population. Estimating ordinary least squares hedonic pricing models and …

Exploring The Positive Utility Of Travel And Mode Choice, Patrick Allen Singleton

PSU Transportation Seminars

Why do people travel? We traditionally assume traveling is a means to an end, travel demand is derived (from the demand for activities), and travel time is to be minimized. Recently, scholars have questioned these axioms, noting that some people may like to travel, use travel time productively, enjoy the experience of traveling, or travel for non-utilitarian reasons. The idea that travel can provide benefits and may be motivated by factors beyond reaching activity destinations is known as “the positive utility of travel” or PUT.

This study presents a conceptual and empirical look at the positive utility of travel and …

Improving Trip Data For Livable Communities, Kelly Clifton

TREC Project Briefs

NITC researchers work to refine a framework for trip generation that includes people walking, biking and riding transit.

Could E-Bikes Spur A New Wave Of Biking In America?, John Macarthur

TREC Project Briefs

In this NITC study, researchers provided participants with electric bicycles to use for a ten-week trial period and surveyed them about the experience.

Plans And Living Practices For The Green Campus Of Portland State University, Yoon Jung Choi, Minjung Oh, Jihye Kang, Loren Lutzenhiser

Urban Studies and Planning Faculty Publications and Presentations

This study aims to comprehend Portland State University (PSU)’s green campus strategies, and students’ level of knowledge and living practices relating to green campus. PSU’s sustainable campus plan has been nationally and internationally recognized. A literature review, field investigation, and interviews were conducted to ascertain the PSU green campus strategies. This study also used a survey to understand students’ level of knowledge and practices. The survey results were analyzed by SPSS. Green campus projects at PSU were operated by official organizations and funded according to PSU’s long term plans in 12 multilateral categories: administration, energy, water, climate action, green buildings, …