Transportation Commons^™

Green Loop Swpdx Concept Plan: Alignment And Design Treatment Recommendations For The Southwest Green Loop, Ashley Eaton, Brian Gunn, Jake Adams, Kate Washington, Mohd Meidiansyah

Master of Urban and Regional Planning Workshop Projects

The Green Loop SWPDX project was conducted by five students in partnership with the Portland Bureau of Planning & Sustainability Urban Design Studio and Portland State University's Campus Planning Office. It explores potential alignments and design treatments for Portland's Green Loop, specifically with the southwest downtown quardrant of the Central City. The southwest quadrant of the Green Loop links the South Park Blocks to the non-automobile Tilikum Crossing bridge. The Green Loop SWPDX project explores both large and small-scale possibilities for creating a sense of safety and a place for cyclists and pedestrians in the Central City. This document reports …

Where Does Bicycling For Health Happen? Analysing Volunteered Geographic Information Through Place And Plexus, Greg P. Griffin, Junfeng Jiao

Research Collection College of Integrative Studies

Research on the role of bicycling for health through physical activity has been limited by the lack of information on where bicyclists ride. New big data sources available through smartphone-based applications provide a rich source to provide bicycle volume data more comparable to the scale of information available for automotive and public transit modes. In the case of smartphone apps for fitness tracking, results of this data can be used similar to the growing application of global positioning systems for automotive travel surveying. The authors evaluate data from Travis County, Texas for the purpose of determining where bicyclists ride, primarily …

The Green Loop Swpdx Workshop Project, Brian Gunn, Kate Washington, Jake Adams, Ashley Eaton, Mohd Meidiansyah

PSU Transportation Seminars

The Bureau of Planning and Sustainability proposes the construction of the Green Loop, a 10-mile linear public open space proposed in the West Quadrant Plan update that will further link the east and west sides of the Central City. In addition to physically affirming both sides of the river as part of the Central City, the Green Loop is expected to create a second ring of pedestrian and bicycle access, much like the East Bank Esplanade and Tom McCall Waterfront Park, that will draw activity to retail further from the river.

The Green Loop addresses both the City of Portland’s …

Transforming A Historic Highway In Small Town Mosier Into A Vibrant Main Street, Amanda Davidowitz, Kaleidoscope Student Planners

PSU Transportation Seminars

Kaleidoscope Student Planners, a group of six students in the Master’s of Urban and Regional Planning program at Portland State University, are working with Mosier, Oregon’s City Council to develop the Slow Mo’ Main Street Concept Plan. The goal for the project is to develop conceptual designs and programmatic recommendations for historic Highway 30 (which runs through the town), to help ensure that Mosier’s Main Street reflects community priorities, supports a thriving downtown, and creates a safe and inviting corridor for people traveling on foot, by bike and by motor vehicle. During this seminar we will reflect on our process …

New Fhwa Vmt Forecasts Implications For Local Planning, Andrew Mortensen

PSU Transportation Seminars

A summary of FHWA’s new national traffic trends assessment will be presented, including discussion of varied factors influencing forward-thinking forecasts. Examples of Oregon statewide vehicle miles travelled (VMT) and historic traffic trends from ATR stations in the Portland urban region and greater Willamette Valley will be highlighted. VMT, population and income data will be noted with implications on local transportation planning.

Development Of A Pedestrian Demand Estimation Tool: A Destination Choice Model, Christopher D. Muhs

PSU Transportation Seminars

There is growing support for improvements to the quality of the walking environment, including more investments to promote pedestrian travel. Planners, engineers, and others seek improved tools to estimate pedestrian demand that are sensitive to environmental and demographic factors at the appropriate scale in order to aid policy-relevant issues like air quality, public health, and smart allocation of infrastructure and other resources. Further, in the travel demand forecasting realm, tools of this kind are difficult to implement due to the use of spatial scales of analysis that are oriented towards motorized modes, vast data requirements, and computer processing limitations.

To …

Development Of A Pedestrian Demand Estimation Tool: A Destination Choice Model, Christopher D. Muhs, Kelly Clifton, Patrick Allen Singleton, Robert J. Schneider

Civil and Environmental Engineering Faculty Publications and Presentations

There is growing support for improvements to the quality of the walking environment, including more investments to promote pedestrian travel. Planners, engineers, and others seek improved tools to estimate pedestrian demand that are sensitive to environmental and demographic factors at the appropriate scale in order to aid policy-relevant issues like air quality, public health, and smart allocation of infrastructure and other resources. Further, in the travel demand forecasting realm, tools of this kind are difficult to implement due to the use of spatial scales of analysis that are oriented towards motorized modes, vast data requirements, and computer processing limitations.

To …

Changes In Transit Use And Service And Associated Changes In Driving Near A New Light Rail Transit Line, Mti Report 12-44, Hilary Nixon, Marlon Boarnet, Doug Houston, Steven Spears

Mineta Transportation Institute

Los Angeles is pursuing possibly the most ambitious rail transit investment program in the nation with plans to open six new rail transit lines between now and 2019. The report provides policy makes and planners a better understanding of the potential impacts of Los Angeles Metro’s rail transit investment program by assessing the changes in transit use of nearby residents and nearby bus service associated with the Expo Line, the first of the six new lines. Our findings indicate that changes in bus service that are coincident with the introduction of new light rail transit can negatively affect the overall …

Solving Multi-Vehicle Profitable Tour Problem Via Knowledge Adoption In Evolutionary Bi-Level Programming, Stephanus Daniel Handoko, Abhishek Gupta, Chen Kim Heng, Hoong Chuin Lau, Yew Soon Ong, Puay Siew Tan

Research Collection School Of Computing and Information Systems

Profitable tour problem (PTP) belongs to the class of vehicle routing problem (VRP) with profits seeking to maximize the difference between the total collected profit and the total cost incurred. Traditionally, PTP involves single vehicle. In this paper, we consider PTP with multiple vehicles. Unlike the classical VRP that seeks to serve all customers, PTP involves the strategic-level customer selection so as to maximize the total collected profit and the operational-level route optimization to minimize the total cost incurred. Therefore, PTP is essentially the knapsack problem at the strategic level with VRP at the operational level. That means the evolutionary …

Efficient Reverse Top-K Boolean Spatial Keyword Queries On Road Networks, Yunjun Gao, Xu Qin, Baihua Zheng, Gang Chen

Research Collection School Of Computing and Information Systems

Reverse k nearest neighbor (RkNN) queries have a broad application base such as decision support, profile-based marketing, and resource allocation. Previous work on RkNN search does not take textual information into consideration or limits to the Euclidean space. In the real world, however, most spatial objects are associated with textual information and lie on road networks. In this paper, we introduce a new type of queries, namely, reverse top-k Boolean spatial keyword (RkBSK) retrieval, which assumes objects are on the road network and considers both spatial and textual information. Given a data set P on a road network and a …

2014 Transit Oriented Developments Survey, Jennifer Dill, Nathan Mcneil

TREC Final Reports

This report presents results from surveys of residents at several transit-oriented developments (TODs) in Portland, Hillsboro, Tigard, and unincorporated Clackamas County. The research complements our previous survey work for Metro done at eight TODs in 2010 and 11 TODs in 2007.

Mobility And Accessibility In Shrinking Cities, Joanna Ganning

TREC Project Briefs

A University of Utah researcher explores the synthesis of mobility- and accessibility-based transportation planning in the context of urban decay.

Making Streets Into Complete Streets, Marc Schlossberg, John Rowell

TREC Project Briefs

Researchers created a manual to aid planners in adopting complete streets policies and designs.

Peak Of The Day, Or The Daily Grind?, Oliver Blair Smith

TREC Project Briefs

Survey research explores the relationship between commuting and overall happiness.

Hiding Private Locations By Anonymizing Data, Kelly J. Clifton, Steven R. Gehrke

TREC Project Briefs

Researchers explore ways of masking private locations in the interest of making useful data publicly available.

Transit Can Inspire Neighborhood Revitalization, Gerardo Francisco Sandoval, Roanel Herrera

TREC Project Briefs

In-depth case studies explore how transit-oriented development can revitalize neighborhoods without displacing low-income residents.

Travel Decisions & Their Implications For Urban Transportation: From Campus Transportation To Statewide Modeling, Gulsah Akar

PSU Transportation Seminars

The ability to forecast future transportation patterns under a particular land-use scenario or urban form is key to making informed decisions at the local and regional levels.

Although several researchers have explored the links between the built environment, socio-demographics and travel behavior, a consensus is not reached.

This talk highlights two recent projects. The first project focuses on individuals’ attitudes towards transportation, neighborhood characteristics and their effects on campus commuters’ transit use, and addresses the question whether attitudes, the built environment or a combination of both explains the resulting transit use better.

The second part presents the Regional Land Use …

Passenger Flows In Underground Railway Stations And Platforms, Mti Report 12-43, Anastasia Loukaitou-Sideris, Brian D. Taylor, Carole Turley Voulgaris

Mineta Transportation Institute

Urban rail systems are designed to carry large volumes of people into and out of major activity centers. As a result, the stations at these major activity centers are often crowded with boarding and alighting passengers, resulting in passenger inconvenience, delays, and at times danger. This study examines the planning and analysis of station passenger queuing and flows to offer rail transit station designers and transit system operators guidance on how to best accommodate and manage their rail passengers. The objectives of the study are to: 1) Understand the particular infrastructural, operational, behavioral, and spatial factors that affect and may …

Using Multimodal Performance Measures To Prioritize Improvements On Us 101 In San Luis Obispo County, Jessica Berry

PSU Transportation Seminars

The US 101 Corridor Mobility Master Plan in San Luis Obispo was a two-year planning effort that evaluated the 70 mile corridor on 12 performance measures. This collaborative effort was led by the San Luis Obispo Council of Governments (SLOCOG).

Performance based planning is becoming more important for agencies receiving State and Federal funding. Smaller, rural regional agencies will have to find ways to collect, report, and use performance metrics with limited resources. SLOCOG's first performance-based planning effort was the US 101 Corridor Mobility Master Plan, funded through a State grant.

Funding for this project came from a …

Webinar: Impacts Of Roadway And Traffic Characteristics On Air Pollution Risks For Bicyclists, Alexander Y. Bigazzi

TREC Webinar Series

Active travel such as walking and bicycling can lead to health benefits through an increase in physical activity. At the same time, more active travelers breath more and so can experience high pollution inhalation rates during travel. This webinar will review the state of knowledge about how roadway and traffic characteristics impact air pollution risks for bicyclists, including the latest PSU research quantifying bicyclists' uptake of traffic-related air pollution using on-road measurements in Portland. The PSU research team including Alex Bigazzi, Jim Pankow, and Miguel Figliozzi quantified bicyclist exposure concentrations on different types of roadways, respiration responses to exertion level, …