Transportation Commons^™

Benefit-Cost Evaluation Method For Transit Stop Removal, Zef Wagner

PSU Transportation Seminars

The introduction of wider stop spacing through the removal or consolidation of existing stops is one method transit agencies can use to reduce travel time and reliability on many transit lines. A great deal of research has been done to provide tools for determining optimal stop spacing, but tools are still needed to help service planners determine the optimal stops to remove. Stop-level bus performance data provide the information needed to develop a method for assessing the total benefits and costs to riders of removing individual stops. This tool compares the benefit to through-riders in terms of travel time savings …

Refining Shippers’ Dyadic Cost, Risk, And Delivery Responsibilities: The Principal Changes To Incoterms And A Transaction Cost Focus For The Future, Drew M. Stapleton, Vivek Pande, Soumen Ghosh, Uzay Damali

Journal of Transportation Management

We first explore the changes in the latest version of Incoterms and explain why and how they have been refined to better capture contemporary global and domestic shipping practices and policies. Next we graphically explain each of the eleven INCOTERMS 2010 and specify exact delivery points, those critical points at which cost and risk responsibilities shift from the Seller to the Buyer. We then provide a discussion to better explain the application of the terms from a practitioner’s view and note that many shippers and freight forwarders still revert to long practiced shipping policies, leaving themselves vulnerable. We close by …

Ballast Water Samples As "Scientific Evidence”, Jennie Folkunger

NSBWO

The Ballast Water Management Convention was established as a response to the global issue of the spread of invasive species. The entry into force of the Convention is supposedly imminent, but many issues remain to be solved to ensure its success in preventing the spread of invasive species. Considering the implications involved, it is of great importance for the success of the Convention that sampling procedures to determine compliance are robust and reliable. Further, sampling results must gain acceptance as scientific evidence and basis for enforcement actions. The IMO has produced guidelines and recommendations that are to be evaluated during …

Risk Assessments For New Bioinvasions For The North Sea Region, Josefin Madjidian

NSBWO

This deliverable is a compilation of summaries of four scientific papers that cover different aspects of risks connected to marine bioinvasions in the North Sea Region. One of the papers looks deeper into global shipping and adds several factors to shipping density to describe hotspots for potential invasions and invasion routes. Two of the papers dig into concerns of regional perspective (the Wadden Sea), one developing a model of a specific kind of water body’s vulnerability to non-native, the other dealing with questions related to when a species should be stated as a non-native and when it has become part …

Life In Hampton Roads Survey Press Release #4: The Changing Transportation Picture: Tolls And Traffic, Social Science Research Center, Old Dominion University

Life in Hampton Roads Survey Report

This report examines regional and sub-regional measures of transportation perceptions from the 2014 Life In Hampton Roads survey (LIHR 2014) conducted by the Old Dominion University Social Science Research Center.

Multiday Gps Travel Behavior Data For Travel Analysis: The Effect Of Day-To-Day Travel Time Variability On Auto Travel Choices, Jennifer Dill, Joseph Broach, Kate Deutsch-Burgne, Yanzhi Xu, Randall Guensler, David Levinson, Wenyun Tang

Urban Studies and Planning Faculty Publications and Presentations

This project explored the potential of archived multi-day GPS data to expand the understanding of travel-time reliability. While reliability is often observed and considered at the system or segment level, travel-time uncertainty is also experienced at the household and trip level. Any move toward incorporating reliability into regional travel models will necessitate a re-examination of travel-time variation at more disaggregate levels. The analysis uses multiday vehicle-based GPS data analyzed within the Transportation Secure Data Center (TSDC). There were three major goals for the research. The first goal was to consider the ways in which multiday GPS data could be translated …

The Long-Term Impact Of Rail Abandonment On Manufacturing In Arkansas, John D. Ozment, Ahren Johnston

Journal of Transportation Management

Despite the fact that railroads are an important part of the U.S. economy, the number of rail carriers and miles of rail lines have been declining. The resulting lack of transportation alternatives could have a negative impact on local manufacturing. This study examined the effects of rail abandonment in Arkansas between 1980 and 2000 by comparing measures related to manufacturing in counties that did not have or had lost some rail service with those in counties that had rail service and had not lost any. The analysis revealed no meaningful differences, suggesting the lack of any adverse economic impacts due …

Key Advertising Components And Media Channels For Recruiting Long Haul Drivers, Marla B. Royne, Carol C. Beinstock, Tracy Anna Cosenza

Journal of Transportation Management

This research examines how trucking companies can develop effective advertising media and messages for reaching and recruiting qualified long distance long distance truck drivers. Long distance truck driver candidates seem most interested in competitive pay, paid vacation, a weekly payment schedule (along with direct deposit), assigned equipment, 24/7 dispatch, a large volume of hub group freight, and flexible home time. To reach this audience and its needs, we suggest advertisements emphasizing these benefits be placed on the Internet and social media sites, as well as in selected professional magazines frequented by truck drivers searching for jobs.

The Role Of Logistics Alliance Orientation On Forming The Alliance Structure: A Conceptual Framework, David M. Gligor, Mary C. Holcomb

Journal of Transportation Management

Little is known about how a firm decides what type of relationship to develop with a LSP and how the type of arrangement affects the service quality performance. This article proposes a conceptual framework to better understand how shippers decide what type of relationship to develop with a logistics service provider (LSP) within the strategy- structure-performance theoretical framework. A systematic literature review is used to develop a conceptual framework that considers the association between the firm’s strategic perspective on outsourcing and the resulting effect on the alliance structure. The concept of a logistics alliance orientation (LAO) is introduced to examine …

Outsourcing Expert Services By State Transportation Departments: A Look At Effects On Cost, Quality, And Changing Employment Levels, Juita-Elena Yusuf, Lenahan O'Connell

School of Public Service Faculty Publications

Privatization has increasingly become a policy option for government agencies struggling to meet rising demands for services but with fewer resources. In the transportation arena, many state departments of transportation (DOTs) have privatized by outsourcing highway functions to the private sector. But the outsourcing of technical and expert services such as those related to the design and construction of highway infrastructure may result in a smaller or less knowledgeable DOT workforce that is unable to perform the necessary contract management to ensure the quality of the work done by contractors. We posit an outsourcing process in which DOTs respond to …

Human System Engineering Applications From Distracted Driving Simulations, Holly A.H. Handley, Cansu Kandemir, S. Long (Ed.), E.-H. Ng (Ed.), C. Downing (Ed.)

Engineering Management & Systems Engineering Faculty Publications

Most of the studies to explore the impact of distracted driving have been descriptive in nature; i.e. the research is conducted in naturalistic settings to evaluate the performance of the driver with and without distracters. However simulation models can also be used that predict the workload for driving tasks. Using concepts from process modeling, baseline models of driving tasks can be created for different driving sequences that include the associated fine motor, visual and cognitive human resources. These models can then be used to evaluate incidents of workload overload caused by different distracters, from both the internal and external vehicle …

International Trade With Increasing Returns In The Transportation Sector, Haiwen Zhou

Economics Faculty Publications

In this general equilibrium framework, the transportation sector is modeled as a distinct sector with increasing returns. A more advanced technology has a higher fixed cost but a lower marginal cost of production. Even with both manufacturing firms and transportation firms engaged in oligopolistic competition and optimally choosing their technologies, the model is tractable and results are derived analytically. Technology adoptions in the manufacturing sector and transportation sector are reinforcing, and multiple equilibria may exist. Firms choose more advanced technologies and the prices decrease when the size of the population is larger.

For Whom The Tunnel Be Tolled: A Four-Factor Model For Explaining Willingness-To-Pay Tolls, Juita-Elena (Wie) Yusuf, Lenahan O'Connell, Khairul A. Anuar

School of Public Service Faculty Publications

This research examines citizen acceptance of tolls and road pricing, and specifically focuses on determinants of the individual’s expressed willingness-to-pay tolls to use a tunnel express lane that would be free of traffic delays. We answer the research question “What factors influence citizens’ willingness-to-pay tolls” by empirically estimating a four factor model of willingness-to-pay: (a) direct benefit to the respondent; (b) relative cost over time; (c) community concern; and (d) political and environmental liberalism. We use data about citizen perceptions from the Life in Hampton Roads Survey, a survey of residents of Hampton Roads, Virginia. We find that willingness-to-pay is …

Modelling Follow Up Time At A Single-Lane Roundabout, Xiaobo Qu, Jin Zhang, Shuaian Wang, Zhiyuan Liu

School of Public Service Faculty Publications

The follow up time is an important parameter for estimating the entry capacity of roundabouts. However, its variability and contributing factors have long been ignored in the literatures. In this study, 171 follow up samples and contributing factors (traffic volume, vehicle position, waiting vehicles behind, vehicle type, and drivers’ gender) are collected at a roundabout in Pacific Pines, Australia. It is found that the follow up time is indeed significantly affected by traffic volume, waiting vehicles behind, vehicle type, and drivers’ gender. In order to establish the relationship between the follow up time and its contributing factors, an inverse Gaussian …

Generic Incident Model For Investigating Traffic Incident Impacts On Evacuation Times In Large-Scale Emergencies, Andrew J. Collins, Peter Foytik, Erika Frydenlund, R. Michael Robinson, Craig A. Jordan

VMASC Publications

Traffic incidents cause a ripple effect of reduced travel speeds, lane changes, and the pursuit of alternative routes that results in gridlock on the immediately affected and surrounding roadways. The disruptions caused by the secondary effects significantly degrade travel time reliability, which is of great concern to the emergency planners who manage evacuations. Outcomes forecast by a generic incident model embedded in a microscopic evacuation simulation, the Real-Time Evacuation Planning Model (RtePM), were examined to quantify the change in time required for an emergency evacuation that results from traffic incidents. The incident model considered vehicle miles traveled on each individual …

The Modern Streetcar In The United States: Do Cities Have The Information Needed To Make Informed Choices?, Elle Hull

MPA/MPP/MPFM Capstone Projects

Streetcars have made a comeback in cities in North American in the last several decades; there are now over 45 cities operating, building, or planning streetcars. The majority of these streetcars are viewed primarily as catalysts for economic development, rather than as a means of public transportation. However, the streetcar’s claim of promoting development is backed by surprisingly little evidence.

Although carrying out an analysis of the impact of streetcars on economic development is beyond the scope of this paper due to problems with data availability, methods of performing such an analysis are discussed. This includes a list of cities …

Tls Newsletter, Volume 7, Edition 11. January, 2014, Unf Transportation And Logistics Society

Transportation & Logistics Society Newsletter

Inside the Newsletter: TLS Meeting on January 22. TLS President's Corner. Upcoming Events. 13th Annual TLS Hubbard House Holiday Drive. Get to know TLS Treasurer James Flannagan. T & L Spring Career Day--Are You Prepared? TLS on Tour--Bacardi Bottling Corporation. Life after Graduation with Rebecca Bratcher Cobb

Framing Transportation Planning Pedagogy For Sustainability Generalists, Beth Sweeney, Ann Scheerer, Vicki Elmer

TREC Final Reports

This paper describes a pilot graduate sustainable transportation course developed at the University of Oregon to provide hands-on project experience for students studying sustainability. New approaches to sustainability and transportation pedagogies will provide a galvanizing force for tomorrow’s graduates, who must respond to concerns about climate change and the environment, social equity, and an uncertain economy. They will require an aptitude for both technical skills and collaborative leadership and communication skills. The course was guided by a framework founded in five themes from the literature on sustainability education and transportation planning and engineering education: leading with sustainability’s cornerstones of people, …

How Livable Is Your Transit System?, Marc Schlossberg

TREC Project Briefs

The U.S. Department of Housing and Urban Development has identified some “livability principles” which include healthy, safe and walkable neighborhoods and safe, reliable and economical transportation choices. Transit agencies and local governments routinely use metrics to evaluate the performance of transit systems, but a uniform standard of transit data collection does not exist outside of the reporting requirements of the National Transit Database (NTD). Because of the types of data collected for the NTD, the focus of performance measurements is often on ridership and financial performance, leaving aside the question of livability.

In an OTREC-sponsored project, principal investigator Marc Schlossberg …

Exploring The Effects Of Adaptive Traffic Systems, Miguel A. Figliozzi, Christopher M. Monsere

TREC Project Briefs

Researchers conduct an in-depth analysis of traffic performance and associated vehicular emissions, before and after the installation of a SCATS unit.