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Comparing Automated Shared Taxis And Conventional Bus Transit For A Small City, Louis A. Merlin 2017 Florida Atlantic University

Comparing Automated Shared Taxis And Conventional Bus Transit For A Small City, Louis A. Merlin

Journal of Public Transportation

This study compared two hypothetical transit scenarios with the current bus transit system for serving the transit passengers of Ann Arbor, Michigan, for a typical fall weekday in 2013. One scenario consists of an automated taxi system that allows only one rider at a time, and the other consists of a similar automated taxi system that allows ridesharing for up to four passengers. The two automated taxi scenarios were modeled on simulated transit passenger travel demand data via agent-based models. All three scenarios were then compared for their level of service, cost, greenhouse gas emissions, and congestion impacts. The automated ...


2010 Transit Oriented Developments Survey, Jennifer Dill 2017 Portland State University

2010 Transit Oriented Developments Survey, Jennifer Dill

Jennifer Dill

This report presents results from surveys of residents at several transit-oriented developments (TODs) in Portland, Gresham, Hillsboro, and Happy Valley. The research complements survey work done in 2005 at sites near three MAX stations in Hillsboro and Beaverton (west of downtown) and the Merrick apartments near the Convention Center in Portland, and in 2007 at 11 sites in the eastside of Portland and Gresham.


Regional Travel Options 2007-08 Program Evaluation, Jennifer Dill, Stephan Brown 2017 Portland State University

Regional Travel Options 2007-08 Program Evaluation, Jennifer Dill, Stephan Brown

Jennifer Dill

To help implement the Growth Concept, Metro’s Regional Travel Options (RTO) Program works to increase awareness of non-SOV alternatives and increase the provision of those alternatives. The program complements other strategies, including land use policies and infrastructure investment. The most comprehensive data available for this evaluation come from commute surveys of employees at work sites that participate in outreach programs offered by TriMet. All of the RTO evaluations have used these data as a benchmark for overall progress, though the data only captures commute travel. The 2008 data reflect the commute patterns of about 120,000 employees commuting to ...


2014 Transit Oriented Developments Survey, Jennifer Dill, Nathan McNeil 2017 Portland State University

2014 Transit Oriented Developments Survey, Jennifer Dill, Nathan Mcneil

Jennifer Dill

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.


Evaluation Of An Electric Bike Pilot Project At Three Employment Campuses In Portland, Oregon, John MacArthur, Nicholas Kobel, Jennifer Dill, Zakari Mumuni 2017 Portland State University

Evaluation Of An Electric Bike Pilot Project At Three Employment Campuses In Portland, Oregon, John Macarthur, Nicholas Kobel, Jennifer Dill, Zakari Mumuni

Jennifer Dill

Oregon, and Portland in particular, is internationally known for its love for bikes. Not only does the region have some of the highest bike ridership but the Oregon bike manufacturing industry is quickly growing. Oregon’s electric bike (e-bike) market is also growing but little data are available on the potential market and e-bike user behavior and interest. Only a limited amount of research has explored the potential new market segments for e-bikes and the economic, operational, safety, and transportation issues surrounding e-bikes in the United States. This report examines the results of an electric bike (e-bike) pilot project, which ...


Peer-To-Peer Carsharing: Short-Term Effects On Travel Behavior In Portland, Or, Jennifer Dill, Nathan McNeil, Steven Howland 2017 Portland State University

Peer-To-Peer Carsharing: Short-Term Effects On Travel Behavior In Portland, Or, Jennifer Dill, Nathan Mcneil, Steven Howland

Jennifer Dill

Peer-to-peer (P2P) carsharing is a relatively new concept in the U.S. Enabled by recent internet and mobile technology development, P2P carsharing generally involves a facilitating company connecting private vehicle owners to people who are interested in renting a vehicle. P2P carsharing has many things in common with business-to-consumer (B2C) carsharing services. Consumers join the service to rent vehicles on a short-term basis from locations dispersed throughout a certain area. Both services may allow households to reduce their private car ownership. However, P2P carsharing differs substantially from other models in that there are two distinct sets of consumers: those who ...


A Model For Better Crosswalk Safety, Miguel Figliozzi 2017 Portland State University

A Model For Better Crosswalk Safety, Miguel Figliozzi

Miguel A. Figliozzi

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.


Utilizing High Resolution Bus Gps Data To Visualize And Identify Congestion Hot-Spots In Urban, Nicholas B. Stoll, Travis B. Glick, Miguel Figliozzi 2017 Portland State University

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

Miguel A. Figliozzi

Congestion and travel delay on urban roadways can influence the roadways’ operating costs and service attractiveness. This research used high-resolution bus data to examine sources of delay on urban arterials. A set of tools was created to help visualize trends in bus behavior and movement; these tools allowed larger traffic trends to be visualized along urban corridors and streets. With 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. Speed plots were used to discover trends and travel patterns with only a ...


Modeling And Analyzing The Impact Of Advanced Technologies On Livability And Multimodal Transportation Performance Measures In Arterial Corridors: Phase 2, Miguel Figliozzi, Chawalit Tipagornwong 2017 Portland State University

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

Miguel A. Figliozzi

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 ...


Exploiting New Data Sources To Quantify Arterial Congestion And Performance Measures At A Regional Scale, Miguel Figliozzi, Robert L. Bertini, Travis B. Glick, Nicholas B. Stoll, Wei Feng, Bobjot S. Sidhu, Anurag Pande 2017 Portland State University

Exploiting New Data Sources To Quantify Arterial Congestion And Performance Measures At A Regional Scale, Miguel Figliozzi, Robert L. Bertini, Travis B. Glick, Nicholas B. Stoll, Wei Feng, Bobjot S. Sidhu, Anurag Pande

Miguel A. Figliozzi

Transit travel time, operating speed and reliability all influence service attractiveness, operating cost and system efficiency. These metrics have a long-term impact on system effectiveness through a change in ridership. As part of its bus dispatch system (BDS), the Tri-County Metropolitan Transportation District of Oregon (TriMet) has been archiving automatic vehicle location (AVL) and automatic passenger count (APC) data for all bus trips at the stop level since 1997. In 2014, a new and higher-resolution bus AVL data collection system was fully implemented.

This new AVL system provides stop-level data as well as five-second resolution (5-SR) bus position data between ...


Improving Trip Generation Methods For Livable Communities, Kelly Clifton, Nico Larco, Kristina Marie Currans, Jael Wettach-Glosser 2017 Portland State University

Improving Trip Generation Methods For Livable Communities, Kelly Clifton, Nico Larco, Kristina Marie Currans, Jael Wettach-Glosser

Kelly Clifton

Recent efforts to improve trip generation data available for transportation impact analysis of new development include the collection of multimodal trip generation data, development of models that account for the built environment, and new recommendations for practice. Building on a long line of research on transportation and built environment, many studies have identified important features of the surrounding built environment that most impact trip rates and mode shares, building on a long line of research on transportation and the built environment. Despite these improvements in data and methods, less attention is placed on identifying the conditions of the site itself ...


A Pathway Linking Smart Growth Neighborhoods To Home-Based Pedestrian Travel, Steven R. Gehrke, Kelly J. Clifton 2017 Portland State University

A Pathway Linking Smart Growth Neighborhoods To Home-Based Pedestrian Travel, Steven R. Gehrke, Kelly J. Clifton

Kelly Clifton

Land development patterns, urban design, and transportation system features are inextricably linked to pedestrian travel. Accordingly, planners and decision-makers have turned to integrated transportation-land use policies and investments to address the pressing need for improvements in physical activity levels via the creation of walkable communities. However, policy questions regarding the identification of smart growth indicators and their connection to walking remain unanswered, because most studies of the built environment determinants of pedestrian travel: (a) represent the built environment with isolated metrics instead of as a multidimensional construct and (b) model this transportation-land use relationship outside of a multidirectional analytic framework ...


Improving Trip Data For Livable Communities, Kelly Clifton 2017 Portland State University

Improving Trip Data For Livable Communities, Kelly Clifton

Kelly Clifton

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


Network Congestion Effect Of E-Hailing Transportation Services, Xuegang Ban 2017 University of Washington

Network Congestion Effect Of E-Hailing Transportation Services, Xuegang Ban

TREC Friday Seminar Series

E-hailing plays a key role in emerging transportation services such as ridesourcing, ridesharing and taxis, among others. This seminar will present a general economic model to analyze the congestion effect of e-hailing services in a transportation network.

The model can help analyze customers’ choices of different modes, based on their value of time and the charging schemes of different services, as well as the overall impact of the services to network level congestion.


Behavior-Based Freight Modeling At Metro, Chris Johnson, Bud Reiff 2017 Metro

Behavior-Based Freight Modeling At Metro, Chris Johnson, Bud Reiff

TREC Friday Seminar Series

Chris Johnson and Bud Reiff will present on a behavior-based freight model being used at Oregon Metro. This model will replace Metro’s current truck model with a hybrid freight model that both represents multi-modal freight flows through elements of national and regional supply chains and simulates the movement of individual trucks and shipments on local networks. Model estimation and calibration will also require collection of behavioral data from shippers and receivers representing a wide range of industries, common and contract freight carriers, business that operate non-freight commercial vehicles, warehouse managers, and logistics agents.

Key project objectives:

  • Develop tools to ...


Ticket To The Past: A Political History Of The Mexico City Metro, 1958-1969, Maxwell E.P. Ulin 2017 Yale University

Ticket To The Past: A Political History Of The Mexico City Metro, 1958-1969, Maxwell E.P. Ulin

Grand Valley Journal of History

This essay outlines the historic political battle between Mexico's longest serving mayor, Ernesto Uruchurtu, and the nation's president, Gustavo Diaz Ordaz, over the construction of what would become the second largest subway system in the Western Hemisphere, The Mexico City Metro. The conflict, which eventually resulted in Uruchurtu's resignation, was characterized by latent political tensions between the PRI and Mexican middle class that would erupt in 1968 and lead to the ultimate decline of PRI hegemony. I thus argue that the new Metro project did not reflect Mexico's democratic modernization--as its supporters meant it to do--but ...


Improving Livability Using Green And Active Modes: A Traffic Stress Level Analysis Of Transit, Bicycle, And Pedestrian Access And Mobility, Maaza C. Mekuria, Bruce Appleyard, Hilary Nixon 2017 Hawaii Department of Transportation

Improving Livability Using Green And Active Modes: A Traffic Stress Level Analysis Of Transit, Bicycle, And Pedestrian Access And Mobility, Maaza C. Mekuria, Bruce Appleyard, Hilary Nixon

Mineta Transportation Institute Publications

Understanding the relative attractiveness of alternatives to driving is vitally important toward lowering driving rates and, by extension, vehicle miles traveled (VMT), traffic congestion, greenhouse gas (GHG) emissions, etc. The relative effectiveness of automobile alternatives (i.e., buses, bicycling, and walking) depends on how well streets are designed to work for these respective modes in terms of safety, comfort and cost, which can sometimes pit their relative effectiveness against each other. In this report, the level of traffic stress (LTS) criteria previously developed by two of the authors was used to determine how the streets functioned for these auto alternative ...


Barriers To Biking For Women And Minorities, Amy Lubitow 2017 Portland State University

Barriers To Biking For Women And Minorities, Amy Lubitow

TREC Project Briefs

The health benefits of bicycling are well understood; numerous studies link increased cycling activity with improved health outcomes. Research suggest that the cycling behavior most likely to generate broad, population-level health benefits is everyday routine cycling—including running errands and taking other short trips. Despite these health benefits and new investment in cycling infrastructure, overall cycling levels in the U.S. lag behind many other nations. Amidst findings of increased ridership, research still finds that women and racial minorities are underrepresented as cyclists in North America.

While quantitative data may reveal estimates of these disparities, little is known about the ...


Narratives Of Marginalized Cyclists: Understanding Obstacles To Utilitarian Cycling Among Women And Minorities In Portland, Or, Amy Lubitow 2017 Portland State University

Narratives Of Marginalized Cyclists: Understanding Obstacles To Utilitarian Cycling Among Women And Minorities In Portland, Or, Amy Lubitow

TREC Final Reports

Research has demonstrated that everyday or utilitarian forms of cycling are most likely to generate positive population-level health impacts (Garrard et al., 2012), yet significant deterrents to routine cycling remain, particularly for women and minorities. The primary aim of this project was to conduct a qualitative interview study that generated rich, narrative data regarding obstacles to routine or utilitarian cycling for women and minorities who already see biking as a viable form of transit, but who make relatively few bike trips. A secondary aim of the project was to develop a set of specific interventions that have the potential to ...


Peer-To-Peer Carsharing: Short-Term Effects On Travel Behavior In Portland, Or, Jennifer Dill, Nathan McNeil, Steven Howland 2017 Portland State University

Peer-To-Peer Carsharing: Short-Term Effects On Travel Behavior In Portland, Or, Jennifer Dill, Nathan Mcneil, Steven Howland

TREC Final Reports

Peer-to-peer (P2P) carsharing is a relatively new concept in the U.S. Enabled by recent internet and mobile technology development, P2P carsharing generally involves a facilitating company connecting private vehicle owners to people who are interested in renting a vehicle. P2P carsharing has many things in common with business-to-consumer (B2C) carsharing services. Consumers join the service to rent vehicles on a short-term basis from locations dispersed throughout a certain area. Both services may allow households to reduce their private car ownership. However, P2P carsharing differs substantially from other models in that there are two distinct sets of consumers: those who ...


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