Transportation Commons^™

Do Tods Make A Difference? Ns Streetcar Line Portland, Oregon, Jenny H. Liu, Zakari Mumuni, Matt Berggren, Matt Miller, Arthur C. Nelson, Reid Ewing

Urban Studies and Planning Faculty Publications and Presentations

This analysis was intended to help answer the following policy questions:

Q1: Are TODs attractive to certain NAICS sectors?
Q2: Do TODs generate more jobs in certain NAICS sectors?
Q3: Are firms in TODs more resilient to economic downturns?
Q4: Do TODs create more affordable housing measured as H+T?
Q5: Do TODs improve job accessibility for those living in or near them?

The first question investigates which types of industries are actually transit oriented. Best planning practices call for a mix of uses focused around housing and retail, but analysis provides some surprises. The second question tests the economic development …

Seminar #294: Transforming Transportation Through Connectivity, Robert L. Bertini

PSU Transportation Seminars

The transportation system is the backbone of the United States' economy, and transportation is an essential part of everyday life for American citizens. It is essential that the transportation system continue to provide accessibility and connectivity to an ever-evolving global economy. A key way to do so is to embrace, develop and implement new technologies. One of the newest and most promising facets of transportation-related technology is in the field of connected mobility. The vision behind connected mobility is of a transportation system where vehicles, travelers, and infrastructure are all wirelessly connected with one another and able to transmit real-time …

Participation, Information, Values, And Community Interests Within Health Impact Assessments, Nicole Iroz-Elardo

Dissertations and Theses

Health impact assessment (HIA) has emerged in the U.S. as one promising process to increase social and environmental justice through addressing health equity issues within planning. HIA practice is guided by values such as democracy and equity and grounded in broad social determinants of health. The most readily applied definition of democracy is problematic because it implies an element of direct, participatory engagement with the public. This is at odds with HIA practice that largely relies on stakeholder engagement strategies.

This dissertation critically examines the engagement strategies of three transportation planning HIA cases to more fully understand how the HIA …

Opportunities And Challenges Of Data Publication: A Case From Purdue, David Scherer, Lisa Zilinski, Courtney Matthews

Charleston Library Conference

Beginning in 2011, there have been several policy changes directly affecting the management, preservation, and accessibility of publically funded research and resulting research data in the United States. On January 18, 2011 the National Science Foundation (NSF) required data management plans to be submitted with all grant proposals (National Science Foundation, 2013). On February 22, 2013, the Office of Science and Technology Policy of the President of the United States extended a similar requirement to all federal agencies that have a research and development budget of more than $100 million (Holdren, 2013). These requirements illustrate the need for further coordination …

Lessons From Lived Experience: From Fresh Insights To Effective Action, Lisa Deangelis, Maureen A. Scully, Andrea Wight

Emerging Leaders Program Team Projects

The 34 fellows in the 2014 Emerging Leaders Program worked with community partners to generate the theme, “Learning from Lived Experience: From fresh insights to effective action." Each year, the projects draw upon a theme or lesson from the prior year. Last year and this year, fellows saw how the lived experiences of both their stakeholders and themselves generated nuanced and appropriate approaches to problem-solving. The fellows worked with six community partners, giving their time and professional skills to understand how to frame complex social challenges, engage new partners and resources, and sharpen strategic plans. They conducted surveys, interviews, open …

Analyses Of Bus Travel Time Reliability And Transit Signal Priority At The Stop-To-Stop Segment Level, Wei Feng

Dissertations and Theses

Transit travel time is affected by many factors including traffic signals and traffic condition. Transit agencies have implemented strategies such as transit signal priority (TSP) to reduce transit travel time and improve service reliability. However, due to the lack of empirical data, the joint impact of these factors and improvement strategies on bus travel time has not been studied at the stop-to-stop segment level.

This study utilizes and integrates three databases available along an urban arterial corridor in Portland, Oregon. Data sources include stop-level bus automatic vehicle location (AVL) and automatic passenger count (APC) data provided by the Tri-County Metropolitan …

Continuous Data Integration For Land Use And Transportation Planning And Modeling, Liming Wang, Kihong Kim

TREC Final Reports

There is an urgent need for improved models that address the interdependencies between land use and transportation, and considerable new work is underway to develop such models in Oregon and elsewhere. These models and planning practices to integrate land use into the process, however, require the integration of massive amounts of land use data that is messy and incomplete. There have been considerable advances in the treatment of such data problems in other domains, drawing on data mining and machine-learning techniques to address issues in various domains. To date, however, little systematic effort has applied these technological advances to the …

Overtime Traffic Enforcement Evaluation: A Methodology For Selecting Agencies And Enforcement Periods, Dario Enrique Romero Santana

Masters Theses

Multiple studies have stated the advantages of police traffic enforcement on crash reduction (Zaidel, February 2002). It is very important to identify locations and time periods where police enforcement produces the greatest crash reductions. The objectives of this study were to: (1) determine the impact of overtime traffic enforcement on crash occurrence; (2) develop procedures to identify police agencies with potential to reduce targeted crashes; and (3) develop procedures to identify additional time periods in which enforcement activities should be conducted. In order to accomplish these objectives, many methodologies were explored. The study used crash and enforcement data collected by …

Street Portals: Urban User Interface 'Test Bed' Prototype For Bike Shares, Jason Germany, Philip Speranza

TREC Final Reports

The objective of this research project is to develop a user interface “test bed” to measure the role of touchscreen kiosks with community connectivity. This interface test bed will apply the knowledge of interface design to the domain of public transit kiosks, with a particular focus on bike share stations. The value of this research is the ability to generate user feedback between community members using urban experiences. Safety, effectiveness and community connectivity of public transit is enhanced with this information interface.

This report explains the test bed kiosk’s design, physical build, and hardware and software testing. User interaction studies …

The Development Of Low-/No-Emission Electric Vehicle Infrastructure In The Portland Metro Region: A Roadmap, John Macarthur, Peter Murchie, George Beard

TREC Final Reports

The shift from combustion engines to low- and no-emission electric vehicles is underway and gaining momentum. During the last year, Oregon has become an active player in the electric vehicle arena, with a number of promising relationships and activities in the early stages of formalization. With additional thought, effort and strategy Oregon can seize the opportunity to become the national leader in the adoption and incorporation of new vehicle platforms and mobility strategies into the fabric of urban life and the built environment. Oregon is currently actively engaged in relationships with international automotive companies and local businesses and utilities interested …

Effect Of Light-Rail Transit On Traffic In A Travel Corridor, Reid Ewing, Guang Tian, Allison Spain

TREC Final Reports

This study seeks to quantify the effect of the University TRAX light-rail line on traffic near the University of Utah, providing quantitative data that can be used to shape future transportation policies aimed at reducing traffic congestion, energy consumption, air pollution, greenhouse gas emissions, and parking costs. Travel demand models have long been used to estimate and evaluate the effects of transportation improvements, like LRT investments, on network travel flows and times as part of long-range planning studies, using four-step models or more sophisticated urban simulation studies. However, these are usually ex ante studies. Few ex post evaluations have been …

Salem-Keizer Transit Flexible Service Plan, Darwin Moosavi, Brenda Martin, Cj Doxsee, Mike Sellinger, Lauren Wirtis, Matt Berggren

Master of Urban and Regional Planning Workshop Projects

Capturing the Ride is an exploration of flexible transportation options for low-density communities in Salem and Keizer. The current transit system does not serve Keizer, South Salem, and West Salem well; each of these communities has areas with limited or no access to current bus routes. The project intends to provide a service that will better meet the communities’ transit needs than the current system. Over a five-month planning process, Paradigm Planning conducted extensive research and reached out to the public in Keizer, South Salem, and West Salem (herein referred to as the study areas) to determine what kind of …

How Clean Is The Air On Bicycle Routes?, Miguel Figliozzi, James F. Pankow

TREC Project Briefs

A NITC research project evaluates cyclists’ exposure to air pollution along distinct types of bicycle facilities.

Evaluation Of Advanced Traffic Control Systems, Miguel Figliozzi

TREC Project Briefs

Researchers from Portland State University develop performance measures and algorithms for evaluation of state-of-the-art traffic signal control technologies..

Design And Implementation Of Pedestrian And Bicycle-Specific Data Collection Methods In Oregon, Miguel Figliozzi, Christopher Monsere, Krista Nordback, Pamela Johnson, Bryan Philip Blanc

Civil and Environmental Engineering Faculty Publications and Presentations

Although there is a growing need to access accurate and reliable pedestrian and bicycle data, there is no statewide system to collect data or plan future data collection efforts in the state of Oregon. To address these issues this research conducted a comprehensive review of pedestrian and bicycle data collection methods and counting technologies. Oregon data sources were also compiled and AADT estimation techniques were reviewed and applied to Oregon data. A pilot study was conducted to test bicycle and pedestrian counting methods at signalized intersections with 2070 controllers. The report also provides a summary of recommendations regarding factoring methods …

Lessons From The Green Lanes: Evaluating Protected Bike Lanes In The U.S., Christopher Monsere, Jennifer Dill, Nathan Mcneil, Kelly J. Clifton, Nick Foster, Tara Goddard, Mathew Berkow, Joe Gilpin, Kim Voros, Drusilla Van Hengel, Jamie Parks

Civil and Environmental Engineering Faculty Publications and Presentations

This report presents finding from research evaluating U.S. protected bicycle lanes (cycle tracks) in terms of their use, perception, benefits, and impacts. This research examines protected bicycle lanes in five cities: Austin, TX; Chicago, IL; Portland, OR; San Francisco, CA; and Washington, D.C., using video, surveys of intercepted bicyclists and nearby residents, and count data. A total of 168 hours were analyzed in this report where 16,393 bicyclists and 19,724 turning and merging vehicles were observed. These data were analyzed to assess actual behavior of bicyclists and motor vehicle drivers to determine how well each user type understands the design …

An Air Index For Spatial Query Processing In Road Networks, Weiwei Sun, Chunan Chen, Baihua Zheng, Chong Chen, Peng Liu

Research Collection School Of Computing and Information Systems

Spatial queries such as range query and kNN query in road networks have received a growing number of attention in real life. Considering the large population of the users and the high overhead of network distance computation, it is extremely important to guarantee the efficiency and scalability of query processing. Motivated by the scalable and secure properties of wireless broadcast model, this paper presents an air index called Network Partition Index (NPI) to support efficient spatial query processing in road networks via wireless broadcast. The main idea is to partition the road network into a number of regions and then …

Managing Private Vehicles In Asian Cities, Sock-Yong Phang

Research Collection School Of Economics

Asia's rapid urbanization and growing incomes have resulted in a corresponding booming market in motor vehicle sales. In 2013, an estimated 18 million new passenger cars were sold in China. Motor vehicle users generate congestion, pollution, accidents, noise and road damage. Yet, in most cities motor vehicle users often do not pay the full social costs and are therefore implicitly subsidized by non-users. According to the Tom Tom Traffic Index, which is based on GPS data, motorists in the worst congested cities in developed countries spend up to 40% more time for peak hour commutes. This level of delay is …

What Do Americans Think About Federal Tax Options To Support Public Transit, Highways, And Local Streets And Roads? Results From Year Five Of A National Survey, Mti Report 12-36, Asha Weinstein Agrawal, Hilary Nixon

Mineta Transportation Institute

This report summarizes the results of year five of a national random-digit-dial public opinion poll asking 1,503 respondents if they would support various tax options for raising federal transportation revenues, with a special focus on understanding support for increasing revenues for public transit. Eleven specific tax options tested were variations on raising the federal gas tax rate, creating a new mileage tax, and creating a new federal sales tax. Other questions probed various perceptions related to public transit, including knowledge and opinions about federal taxes to support transit. In addition, the survey collected data on standard sociodemographic factors, travel behavior …

Modal Shift And High-Speed Rail: A Review Of The Current Literature, Mti Report 12-35, Peter J. Haas

Mineta Transportation Institute

This report provides a review of scholarly literature with direct relevance to the topic of modal shift and high-speed rail (HSR). HSR systems are usually planned on the expectation that they will attract riders who would have chosen other modes (such as air, automobile, bus, etc.) had the HSR not been created. Identifying and measuring the actual ability of HSR to effect modal shift is therefore critical. This report examines the evidence concerning HSR and modal shift in both secondary analyses of previous studies and in newer studies that use primarily original data. The studies that were reviewed comprise a …