Urban Studies and Planning Commons^™

Sustainable Drainage Systems: Helping People Live With Water, Glyn Everett, Jessica Lamond, Anita T. Morzillo, Faith Ka Shun Chan, Annie Marissa Matsler

Urban Studies and Planning Faculty Publications and Presentations

Sustainable drainage systems or ‘Suds’ are increasingly accepted as an effective means of ‘making space for water’, adapting to possible climate change and helping communities become more flood and drought resilient. This study explores potential shifts in perception and attitude through Suds installation, development and habituation. Attitudes and awareness in communities in the USA and UK, where Suds have been in place for some time, were compared and contrasted, examining any evolution of beliefs and practices and wider community resilience. The principal finding was that there existed a lack of understanding about the existence and function of Suds. The paper …

Cyclist Path Choices Through Shared Space Intersections In England, Allison Boyce Duncan

Dissertations and Theses

In the last several years, there has been growing worldwide interest in making streets safer for all users--pedestrians, cyclists, and motorists. One approach, shared space, is a traffic calming technique as well as urban design concept. This technique strives to fully integrate the roadway into the urban fabric by removing elements such as lane markings, curbs, and traffic signs. By removing these elements and creating a more plaza-like space, these sites become ambiguous and no user group as priority. The technique is relatively new, and the majority of existing research concerns pedestrians only. This mixed methods research focused on six …

Edged Out: Location Efficient Housing And Low Income Households In The Portland Region, Andrée Tremoulet, Ryan Dann

PSU Transportation Seminars

Transportation costs are typically a household’s second largest expense after housing. Low income households are especially burdened by transportation costs, with low income households spending up to two times as much of their income on transportation than higher income households (Litman, 2013).

Thus, access to location efficient housing is especially important to low income households, including those who use a housing voucher to help pay for housing costs.

This seminar presents the results of a two-year project supported by the Portland region's four public housing authorities to design and test tools to help people with housing vouchers find location efficient …

The Economic Impact Of Oregon City’S County Seat Status, Mike Paruszkiewicz, Jeff Renfro, Peter Hulseman, Emma Willingham

Northwest Economic Research Center Publications and Reports

Impact analysis discussing the economic role of county presence in Oregon City.

Hillsboro School District: District-Wide Enrollment Forecast 2016-17 To 2030-31, Portland State University. Population Research Center

School District Enrollment Forecast Reports

The tables following this brief summary contain results of a demographic study conducted for the Hillsboro School District (HSD) by the Portland State University Population Research Center (PRC). Forecasts of district‐wide enrollment annually from 2016‐17 to 2030‐31 under low, middle, and high growth scenarios constitute the core information requested by the District. Additional tables present information compiled in the course of developing forecasts, including recent population, housing and school enrollment trends.

North Clackamas School District Population And Enrollment Forecasts 2016‐17 To 2025‐26, Portland State University. Population Research Center, Charles Rynerson, Scott Stewart, Nicholas Chun

School District Enrollment Forecast Reports

This report presents the results of a demographic study conducted by the Portland State University Population Research Center (PRC). The study includes analysis of population, housing and enrollment trends affecting the North Clackamas School District (NCSD) in recent years and forecasts of district-wide and individual school enrollments for the 2016-17 to 2025-26 school years.

Beyond The Fringe, Carl Abbott

Urban Studies and Planning Faculty Publications and Presentations

Reviews the book: Lincoln Bramwell. Wilderburbs: Communities on Nature’s Edge. Seattle: University of Washington Press, 2014. Andrew Needham. Power Lines: Phoenix and the Making of the Modern Southwest. Princeton, N.J.: Princeton University Press, 2014.

Seeking Solutions To Long-Term Public Engagement In Rapidly Diversifying Communities: A Case Study In Washington County, Oregon, Meg Merrick, Andrée Tremoulet

Institute of Metropolitan Studies Publications

This paper explores the challenges in engaging a rapidly diversifying public in county government decision-making. The State of Oregon recognized the importance of meaningful public engagement by naming it as the first goal of its landmark statewide land use planning system adopted in 1973. Washington County, which is part of Portland’s tri-county metropolitan region, is geographically large, historically white but, in recent years, rapidly diversifying. It is also largely suburban and includes the region’s largest unincorporated communities. In addition, Washington County includes significant agricultural activities and small rural communities.

Assessing The Impacts Of Federal Forest Planning On Wildfire Risk Mitigation In The Pacific Northwest, Usa, Alan A. Ager, Michelle A. Day, Karen C. Short, Cody R. Evers

Environmental Science and Management Faculty Publications and Presentations

We analyzed the impact of amenity and biodiversity protection as mandated in national forest plans on the implementation of hazardous fuel reduction treatments aimed at protecting the wildland urban interface (WUI) and restoring fire resilient forests. We used simulation modeling to delineate areas on national forests that can potentially transmit fires to adjacent WUI. We then intersected these areas with national forest planning maps to determine where mechanical treatments are allowed for restoration and fire protection, versus areas where they are prohibited. We found that a large proportion of the national forest lands (79%) can spawn fires that burn adjacent …

Differential Health And Social Needs Of Older Adults Waitlisted For Public Housing Or Housing Choice Vouchers, Paula C. Carder, Gretchen Luhr, Jacklyn Nicole Kohon

Institute on Aging Publications

Affordable housing is an important form of income security for low-income older persons. This article describes characteristics of older persons waitlisted for either public housing or a housing choice voucher (HCV) (previously Section 8) in Portland, Oregon. 358 persons (32% response rate) completed a mailed survey with questions about demographics, health and housing status, food insecurity, and preference for housing with services. Findings indicate that many waitlisted older persons experienced homelessness or housing instability, poor health, high hospital use, and food insecurity. Public housing applicants were significantly more likely to report lower incomes, homelessness, and food insecurity than HCV applicants. …

Oregon City School District Enrollment Forecasts 2015‐16 To 2024‐25, Portland State University. Population Research Center, Charles Rynerson, Scott Stewart

School District Enrollment Forecast Reports

This report presents a range of three scenarios of district‐wide enrollment forecasts by grade level for the Oregon City School District (OCSD) for the 10 year period between 2015‐16 and 2024‐25. Each enrollment forecast scenario is related to population forecasts that incorporate different assumptions about growth within the District, with the primary differences being the contribution of net migration to the District’s population and age distribution. Individual school forecasts consistent with the middle range scenario are also presented for the 10 year period.

State Of Clark County: Trends From Greater Portland Pulse, Sheila A. Martin, Portland State University. Institute Of Portland Metropolitan Studies

Institute of Metropolitan Studies Publications

Clark County, Washington trends in population, income and wages, growth by industry and the future of work are compiled from data and demonstrated using Greater Portland Pulse.

Parking Infrastructure: A Constraint On Or Opportunity For Urban Redevelopment?, Mikhail Chester

PSU Transportation Seminars

Many cities have adopted minimum parking requirements, but we have relatively poor information about how parking infrastructure has grown.

In this research, using building and roadway growth models, we estimate how parking has grown in Los Angeles County from 1900 to 2010, and how parking infrastructure evolves, affects urban form, and relates to changes in automobile travel.

We find that since 1975, the ratio of residential offstreet parking spaces to automobiles in Los Angeles County is close to 1.0 and the greatest density of parking spaces is in the urban core. Most new growth in parking occurs outside of the …

Travel Mode Choice Framework Incorporating Realistic Bike And Walk Routes, Joseph Broach

Dissertations and Theses

For a number of reasons--congestion, public health, greenhouse gas emissions, energy use, demographic shifts, and community livability to name a few--the importance of walking and bicycling as transportation options will only continue to increase. Currently, policy interest and infrastructure funding for nonmotorized modes far outstrip our ability to model bike and walk travel. To ensure scarce resources are used most effectively, accurate models sensitive to key policy variables are needed to support long-range planning and project evaluation, and to continue adding to our growing understanding of key factors driving walk and bike behavior. This research attempts to synthesize and advance …

Consistent Estimation Of Route Choice Models For Dynamic Transit Assignment, Jeff Hood

PSU Transportation Seminars

Dynamic transit assignment models have the potential to improve local transportation agencies’ capability to forecast the demand for public transit facilities under conditions of limited capacity or varying reliability. In order to be useful in practice, the simulated route choices of passengers in these models need to reflect the behavior of actual residents observed in local travel surveys. Most analysis methods of revealed route choice preferences developed to date have either (1) not been proven to provide consistent estimates or (2) required an untenable computation time for practical applications. Furthermore, no model of transit route choice has accounted for variability …

A Century Of Influence: Report Of The Centennial Research Committee, City Club Of Portland (Portland, Or.)

City Club of Portland

No abstract provided.

An Analysis Of Cyclist Path Choices Through Shared Space Intersections In England, Allison Boyce Duncan

PSU Transportation Seminars

Shared space is a traffic calming technique as well as urban design concept. Also known as ‘Naked Streets’, this technique strives to fully integrate the roadway into the urban fabric by removing elements such as lane markings, curbs, and traffic signs. By removing these elements and creating a more plaza-like space, these spaces become ambiguous and no user group has priority. The technique is relatively new, and the majority of existing research concerns pedestrians only.

This study focused on intersections in England with the goal of understanding how bicycle riders perceive and travel through shared space intersections.

Using video observations, …

Towards Effective Design Treatment For Right Turns At Intersections With Bicycle Traffic, David Hurwitz, Christopher Monsere

PSU Transportation Seminars

The overall goal of this research was to quantify the safety performance of alternative traffic control strategies to mitigate right-turning-vehicle/bicycle collisions, often called "right-hook" crashes, at signalized intersections in Oregon.

A two stage experiment was developed in the OSU high-fidelity driving simulator to investigate the causal factors of right-hook crashes at signalized intersections with a striped bike lane and no right-turn lane, and to then identify and evaluate alternative design treatments that could mitigate the occurrence of right-hook crashes.

Experiment 1 investigated motorist and environmental related causal factors of right-hook crashes, using three different motorist performance measures: (1) visual attention, …

Micrometeorological Simulations To Predict The Impacts Of Heat Mitigation Strategies On Pedestrian Thermal Comfort In A Los Angeles Neighborhood, Mohammad Taleghani, David J. Sailor, George A. Ban-Weiss

Mechanical and Materials Engineering Faculty Publications and Presentations

The urban heat island impacts the thermal comfort of pedestrians in cities. In this paper, the effects of four heat mitigation strategies on micrometeorology and the thermal comfort of pedestrians were simulated for a neighborhood in eastern Los Angeles County. The strategies investigated include solar reflective ‘cool roofs’, vegetative ‘green roofs’, solar reflective ‘cool pavements’, and increased streetlevel trees. Aseries of micrometeorological simulations for an extreme heat day were carried out assuming widespread adoption of each mitigation strategy. Comparing each simulation to the control simulation assuming current land cover for the neighborhood showed that additional street-trees and cool pavements reduced …

Oregon Manufacturing Extension Partnership: An Economic Impact Analysis, Emma Willingham, Mike Paruszkiewicz

Northwest Economic Research Center Publications and Reports

The Hollings Manufacturing Extension Partnership (MEP), founded in 1988, is a network of non-profit agencies staffed by industry professionals and consultants. Historically, MEP has sought to increase the competitiveness of small to mid-size enterprises (which as a group comprise 99% of all U.S. manufacturing firms) by providing expert guidance and access to resources. In recent years, the severe economic recession sparked increased interest in the strength of the manufacturing sector, due to its longtime status as one of the major drivers of the domestic economy. Oregon Manufacturing Extension Partnership (OMEP), the Oregon branch of MEP, works to provide data-driven analysis …

Cycling By Choice Or Necessity? Exploring The Gender Gap In Bicycling In Oregon, Patrick Allen Singleton

PSU Transportation Seminars

In Oregon, as elsewhere in the US, a greater percentage of men bicycle than women. This study illuminates the gender gap in bicycling by exploring differences in bicycling among women and men in Oregon. A one-day statewide travel survey of over 30,000 adults was examined. Comparisons between individual, household, and trip and activity characteristics for people grouped by gender (women vs. men) and bicycling (made a bicycle trip or normally commuted by bicycle vs. did not bicycle) were assessed using chi-squared tests of independence. Many significant differences were found. In particular, women living alone, not working, without a high-school degree, …

Evaluation Of An Electric Bike Pilot Project At Three Employment Campuses In Portland, Oregon, Nicholas Kobel

PSU Transportation Seminars

Electric bicycles are growing more popular every year, but little research yet exists on how they might play a role in our transportation systems. Much of the literature on biking for transportation focuses on the standard bicycle and infrastructure to support it, less so on the vehicle itself. This project evaluates an electric bicycle program at three Kaiser Permanente campuses in the Portland, Oregon metropolitan area and examines participants' impressions of e-bikes.

Results support the hypothesis that e-bikes allow for a broader participation in cycling and for existing cyclists to go to more places.

Utilizing High Resolution Bus Gps Data To Visualize And Identify Congestion Hot-Spots In Urban Arterials, Nicholas B. Stoll

PSU Transportation Seminars

The research uses high resolution bus data to examine sources of delay on urban arterials. A set of tools were created to help visualize trends in bus behavior and movement, which allowed for larger traffic trends to be visualized along urban corridors and urban streets. By using buses as probes and examining aggregated bus behavior, contoured speed plots were used to understand the behavior of roadways outside the zone of influence of bus stops. These speed plots can be utilized to discover trends and travel patterns with only a few days’ worth of data. Congestion and speed variation can be …

Assessing Travel Plans For Residential Developments, Geoff Rose

PSU Transportation Seminars

A ‘travel plan’ is a travel demand management strategy that contains a package of site-specific measures designed to manage car use and encourage the use of more sustainable transport modes. Much of the existing literature on travel plans focuses on their application in workplaces and schools. Travel plans can be required for new residential developments as part of the land use planning and approvals process. However, there is limited understanding of the extent to which they have influenced travel behaviour. This presentation focuses on the assessment of travel plans developed for new residential apartment developments in Melbourne, Australia. Consideration is …

Managing User Delay With A Focus On Pedestrian Operations, Andrew Kading

PSU Transportation Seminars

Across the U.S, walking trips are increasing. However, pedestrians still face significantly higher delays than motor vehicles at signalized intersections due to traditional signal timing practices of prioritizing vehicular movements. This study explores pedestrian delay reduction methods via development of a pedestrian priority algorithm that selects an operational plan favorable to pedestrian service, provided a user defined volume threshold has been met for the major street. This algorithm, along with several operational scenarios, were analyzed with VISSIM using Software-In-The-Loop (SITL) simulation to determine the impact these strategies have on user delays. One of the operational scenarios examined was that of …

The Importance Of Housing, Accessibility, And Transport Characteristic Ratings On Stated Neighborhood Preference, Kristina Marie Currans

PSU Transportation Seminars

Travel demand models commonly lack the ability to understand how changing residential preferences influence future housing, land use, and transportation policies. As communities struggle to address social challenges related to increased economic uncertainty, transportation and land use planning have become increasingly centered on assumptions concerning the market for residential environments and travel choices. In response, an added importance has been placed on the development of toolkits capable of providing robust and flexible models to aid in understanding how differing assumptions contribute to a set of planning scenarios and how future residential location decisions may be made.

In this study, we …

An Activity-Related Land Use Mix Construct And Its Connection To Pedestrian Travel, Steven R. Gehrke

PSU Transportation Seminars

Land use mix is a central smart growth principle connected to active transportation. This presentation describes the indicators of local land use mixing and their association with pedestrian travel in Oregon’s Willamette River Valley. It argues that land use mix is a multidimensional construct reflected by the complementarity, composition, and configuration of land use types, which is positively linked to walk mode choice and home-based trip frequency. Findings from this study underline the conceptual and empirical benefit of analyzing this transportation-land use interaction with a landscape pattern measure of activity-related composition and spatial configuration.

The presentation for this seminar was …

Periodic Atlas Of The Of The Metroscape: Warming Up The City - Mapping The Hottest (Literally) Neighborhoods Of Portland, Vivek Shandas, Jackson Voelkel

Metroscape

Vivek Shandas and Jackson Voelkel show us how urban head varies by characteristics of a neighborhood's built and natural environment. The Atlas reminds us to be aware of the potential impact on those most likely to suffer ill effects from the heat.

Estimates Of Population Age Groups (Ages Under 18 Yrs., 18-64 Yrs., And 65 Yrs. And Over) For Oregon And Its Counties, July 1, 2015, Risa Proehl, Portland State University. Population Research Center

Oregon Population Estimates and Reports

Estimates of Population Age Groups (ages under 18 yrs., 18-64 yrs., and 65 yrs. and over) for Oregon and Its Counties, July 1, 2015. Prepared by Population Research Center, Portland State University, January 2016.

6 Reasons To Relax About Portland's Recent Sell-Offs, Thomas Kerr

Metroscape

Are you feeling nostalgic for Oregon-born companies like Dave's Killer Bread, Little Big Burger, and Precision Castparts? Thomas Kerr asserts that we need not fear the recent rash of acquisitions. New owners often bring fresh ideas and capital to the table while maintaining the characteristics we've come to love about our locally owned companies.