Transportation Commons^™

Fast Optimal Aggregate Point Search For A Merged Set On Road Networks, Weiwei Sun, Chong Chen, Baihua Zheng, Chunan Chen, Liang Zhu, Weimo Liu, Yan Huang

Research Collection School Of Computing and Information Systems

Aggregate nearest neighbor query, which returns an optimal target point that minimizes the aggregate distance for a given query point set, is one of the most important operations in spatial databases and their application domains. This paper addresses the problem of finding the aggregate nearest neighbor for a merged set that consists of the given query point set and multiple points needed to be selected from a candidate set, which we name as merged aggregate nearest neighbor(MANN) query. This paper proposes two algorithms to process MANN query on road networks when aggregate function is max. Then, we extend the algorithms …

Enhancing Competitiveness And Connectivity: The New Us-Mexico Air Services Agreement, Drew M. Stapleton, Vivek Pande

Journal of Transportation Management

Beginning this year, U.S. cargo and passenger airlines will have an opportunity to compete for a bigger share of freight trade and traffic between the U.S. and Mexico. This opportunity will occur as a result of the new Air Services Agreement (ASA) between the U.S. and Mexico that took effect in January, 2016. This ASA further elevates and strengthens the dynamic commercial and economic relationship between the United States and Mexico by facilitating greater trade and tourism. It is a key element of the U.S.-Mexico High Level Economic Dialogue (HLED) that aims to promote competitiveness and connectivity, foster economic growth, …

Identifying The Dimensions Of Logistics Service Quality In An Online B2c Context, David M. Gligor

Journal of Transportation Management

There is theoretical and practical evidence indicating the existence of significant differences between the needs and wants of firms and end consumers, as well as the existence of significantly different needs between offline and online environments. Therefore, it is not clear how effectively measures of logistics service quality developed in an offline, B2B context can be applied to an online, B2C environment. This manuscript explores the elements of logistics service quality that end consumers value in an online context. The literature on logistics service quality in B2B and the literature on online consumer satisfaction are integrated. This results in the …

Logistics Concepts In Freight Transportation Modeling, Subhro Mitra, Elvis Ndembe, Poyraz Kayabas

Journal of Transportation Management

The purpose of this paper is to review logistics concepts used in macro freight transportation modeling by various planning agencies at the national, state and city level. The chronological development of freight modeling endeavors are studied here and the logistics component incorporated in the modeling is identified. The key modeling tools are identified and analyzed to identify the efficacy of the model, ease of use, and data required to implement the model. The conclusion was that European freight models were more developed than North American freight models. The tools most widely used are the aggregate-disaggregate-aggregate model, input-output model, artificial neural …

Make Way For The Orange Line And A Milwaukian Renaissance, Ben Maras

Metroscape

Ben Maras describes how residents of Milwaukie, Oregon feel about the new TriMet Orange Line that will surely bring change to this city just over 20,000.

Toward A Spatial-Temporal Measure Of Land-Use Mix, Steven R. Gehrke, Kelly Clifton

Civil and Environmental Engineering Faculty Publications and Presentations

Urban planning and public-health research has long been interested in the connection between land-use mix and travel. Interest from urban planners stems from the potential of transportation efficiency gains achieved by an increased land-use mix and subsequent shortening of trip lengths; whereas, public-health research advocates an increased land-use mix as an effective policy for facilitating greater physical activity. Yet, despite the transportation, land-use, and health benefits related to improving land-use mix and the extent of topical attention given by researchers, no consensus has been reached regarding the magnitude of its effect on travel. This absence of agreement may largely be …

What Do Americans Think About Public Transit? A Review Of U.S. Public Opinion Polling Survey Questions, Asha W. Agrawal

Mineta Transportation Institute

This “seed grant” research project compiled a set of 56 US public opinion polls that asked respondents their opinions about public transit. The first and primary goal of the project was to assemble a large set of transit-related survey questions that can be used to inspire the design of future surveys on the topic of public transit. The report presents the specific wording of every relevant question identified.

A second objective of the project was to identify general patterns in public opinion about transit that emerge across multiple surveys. Reviewing the entire set of polling questions related to public transit …

Plenary Session Iii – Policy Track: Focus On Innovation, Emily Shea, Jessica Cicchini, Bryan Reimer, Meghan Verena Joyce, Nora Moreno Cargie, Betsey Crimmins

Older Driver Safety Summit: Planning a Safe and Mobile Future for Massachusetts

Dr. Cicchini will describe the Insurance Institute for Highway Safety and how its work can inform efforts in Massachusetts to promote older driver road safety. Dr. Reimer will describe innovations in research and the implications for policy. Nora Moreno Cargie will discuss how corporate and philanthropic partners can support innovative policy developments. Meghan Verona Joyce will describe Uber’s innovative partnership with government partners as a model for other entities to consider as they face regulatory challenges. Betsey Crimmins will discuss the legal and elder justice innovations needed to keep older MA adults safe and mobile.

Plenary Session Iii – Medical Track: Reporting At-Risk Drivers To Massdot Medical Advisory Board, Michele Ellicks, Marjorie Weinberger, James Ellison, Debra Kerrigan, Jatin Dave

Older Driver Safety Summit: Planning a Safe and Mobile Future for Massachusetts

This session will address counseling the at-risk driver, healthcare provider responsibility and liability, clinician resources to provide older drivers, and procedures for reporting. This session will also include information on recognizing the sense of loss and grief experienced by someone who must relinquish a driver’s license.

Plenary Session Iii – Mobility Track: Successful Models For Senior Transportation In Massachusetts, Theadora Fisher, Jayne Colino, Tim O’Day, Erica Girgenti, Janet Seckel-Cerroti

Older Driver Safety Summit: Planning a Safe and Mobile Future for Massachusetts

This session will discuss examples of replicable, successful programs that address the transportation needs of seniors in Massachusetts, including Council on Aging programs, a partnership with a regional transit authority, and a medical escort program.

Plenary Session Ii – Medical Track: Substance And Medication Use, Mary Maguire, Michele Matthews, Stephen J. Walsh, Joanne Thomka

Older Driver Safety Summit: Planning a Safe and Mobile Future for Massachusetts

This session will provide information on drivers’ use of prescription medications, poly-pharmacy, alcohol, “medical” marijuana, and illegal drugs and the impact these substances may have on one’s ability to safely operate a motor vehicle.

Plenary Session Ii – Mobility Track: When The Wheels Fall Off, Jean Patel Bushnell, Lissa Kapust, John Paul, Don Blackburn

Older Driver Safety Summit: Planning a Safe and Mobile Future for Massachusetts

This session captures the consumer experience throughout the transition process, their struggle to maintain control and solutions to help them preserve independence and identity.

Plenary Session Ii – Policy Track: Policies That Work, Kathrin Boerner, Jake Nelson, Richard Marottoli, Tom Meuser

Older Driver Safety Summit: Planning a Safe and Mobile Future for Massachusetts

This session will describe policies related to medical fitness to drive and medical reporting. Jake Nelson will provide an overview of the research related to medical fitness to drive. Best practices will be highlighted by Dr. Meuser, and clinical geriatric issues will be discussed by Dr. Marottoli.

Plenary Session I – Medical Track: Identifying Medically At-Risk Drivers, Janet Jankowiak, Brian Ott, Ann Hollis, Elin Schold-Davis, Eugene Scanzera

Older Driver Safety Summit: Planning a Safe and Mobile Future for Massachusetts

This session will focus on assessing and identifying medical conditions that may impact one’s ability to safely operate a motor vehicle. The session will include information on Alzheimer’s disease, dementia, changes in vision, reaction time, and cognition.

Plenary Session I – Mobility Track: The Transition From Driver To Passenger And The Role Of Senior-Friendly Transportation Options, Nina Silverstein, Jana Hunkler, Helen Kerschner, William Henry, Noah Berger

Older Driver Safety Summit: Planning a Safe and Mobile Future for Massachusetts

This session will explore the challenges faced by older adults as they transition from driving to transportation options; introduce the strategies of travel training and mobility management for senior transportation; present the concept of supportive senior-friendly transportation and the role of volunteers and volunteer driver programs in supporting that vision; and address risk management concerns in the provision of senior transportation.

Plenary Session I – Policy Track: Policies That Work, David Stevens, Marian Ryan, Kay Khan, Harriette L. Chandler, Patricia Jehlen

Older Driver Safety Summit: Planning a Safe and Mobile Future for Massachusetts

This session will discuss policy formation, implementation, and enforcement issues related to older driver safety. Policymakers Representative Khan and Senators Chandler and Jehlen will discuss the process of getting evidence-based laws enacted, while Middlesex D.A. Marian Ryan will describe enforcement issues and concerns. Moderator David Stevens will talk about advocating for socially just and evidence-based policies impacting older adults.

The New Panama Canal In A Global Context, Herman L. Boschken

Faculty Publications, School of Management

Without the "container revolution" (1970-present) and its redesign of seaport and maritime-trade infrastructures, globalization as we know it would not exist. With the recent enlargements of the Panama and Suez Canals, many new implications for U.S. economic trade are unfolding. This presentation at the Commonwealth Club of California, outlines recent changes in world trade and infrastructure development, and poses five factors that will likely determine winners and losers in the unfolding developments of this highly competitive world trade-route system.

Comparing Data Quality And Cost From Three Modes Of On-Board Transit Passenger Surveys, Asha W. Agrawal, Stephen Granger-Bevan, Gregory Newmark, Hilary Nixon

Mineta Transportation Institute

This report presents the findings from a research project investigating the relative data quality and administration costs for three different modes of surveying bus passengers that produce results generalizable to the full passenger population. The three modes, all of which used survey methods distributed or administered onboard the transit vehicle, were: self-complete paper surveys, self-complete online surveys, and interviewer-assisted tablet-based surveys. Results from this study indicate several implications for practitioners choosing a survey mode. First, and most importantly, the analysis reinforces the point that there is no single, best survey mode. The choice of mode must depend on an agency’s …

What Do Americans Think About Federal Tax Options To Support Public Transit, Highways, And Local Streets And Roads? Results From Year Six Of A National Survey, Asha W. Agrawal, Hilary Nixon

Mineta Transportation Institute

This report summarizes the results of year six 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 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 (public …

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 …