Transportation Commons^™

Analysis Of Bus Collision Incidents Using Transit Its And Other Archived Operations Data, James G. Strathman, Paul Herman Wachana, Steve Callas

TREC Final Reports

This report analyzes factors contributing to bus operations safety incidents at TriMet, the transit provider for the Portland Oregon metropolitan region. The analysis focuses on 4,631 collision and non-collision incidents that occurred between 2006 and 2009. Empirical analysis of these incidents draws on a wide array of operator-level data recovered by transit ITS technologies in combination with information from TriMet’s human resources, scheduling, and customer relations databases. Incident frequencies are estimated in relation to operators’ demographic characteristics, employment status, assigned work characteristics, service delivery and performance indicators, temporal factors, and customer information. Apart from identifying factors that are empirically related …

Reliability Centered Maintenance: A Case Study Of Railway Transit Maintenance To Achieve Optimal Performance, Mti Report 10-06, Felix A. Marten Jr.

Mineta Transportation Institute

The purpose of this qualitative case study was to identify the types of obstacles and patterns experienced by a single heavy rail transit agency located in North America that embedded a Reliability Centered Maintenance (RCM) Process. The outcome of the RCM process also examined the impact of RCM on availability, reliability, and safety of rolling stock. This qualitative study interviewed managers (10 cases), and non-managers (10 cases) at the transit agency obtain data. The data may serve to help rail transit leaders determine future strategic directions that would improve this industry. Despite the RCM record in other fields, it has …

Suicides On Commuter Rail In California: Possible Patterns — A Case Study, Research Report 10-05, Jan L. Botha, Kristina A. Elmasu, Philip J. Leitzell

Mineta Transportation Institute

Suicides on rail systems constitute a significant social concern. Reports in local media, whether in newspapers, television, or radio, have brought awareness to this very sensitive and personal subject. This is also true for the San Francisco Bay Area. These events also cause severe trauma for the train operators and staff of the system as well as disruption and cost to society. The overall objective of this project was to conduct a pilot study to identify possible patterns in suicides associated with urban commuter rail systems in California. The Caltrain commuter rail system in the San Francisco Bay Area was …

Turning Over A New Leaf: The Start Of An Electric Vehicle Revolution, Symposium Report S-09-08, Mti

Mineta Transportation Institute

Environmental legislation and public interest in reducing automobile emissions have generated increased efforts to develop and market electrically powered vehicles. But long-distance driving and limited infrastructure for recharging pose serious challenges. What is the industry doing to overcome these limitations? Are electric vehicles a viable solution? On May 18, 2010, the Mineta Transportation Institute (MTI), along with the the U.S. Department of Transportation, Caltrans, and other sponsors and co-sponsors, hosted a panel of experts to address the environmental impact, engineering, and market acceptance of electric vehicles, and the infrastructure needed to keep them viable. Discussion centered around the need for …

Benchmarking And Evaluating The Comparative Efficiency Of Urban Paratransit Systems In The United States: A Data Envelopment Analysis Approach, Hokey Min, Thomas E. Lambert

Journal of Transportation Management

Passenger rail service is perceived to provide important benefits to Michigan communities. However, the extent of these benefits has never been quantified in a systematic way. The study reported on here involved the performance of a broad based assessment of the community level benefits of passenger rail serv ice. The main objective of the research project was to estimate the full range of these benefits at the community level, as opposed to at the state level. Benefits were estimated for individual travelers, Amtrak expenditures, and local businesses. This research indicates local communities currently realize $62.0 million annually in benefits. Additional …

Analytical Techniques And The Air Force Logistics Readiness Officer, Bryan D. Main, William A. Cunningham Iii, Daniel D. Mattioda, Joseph B. Skipper

Journal of Transportation Management

The accelerated globalization of logistics activities over the last several decades has spurred a rapid expansion of port facilities all cross the world. However, the recent slowdown of international trade, coupled with a global financial crisis, has created an on-going glut of international port facilities throughout the world. Although the abundance of port facilities provides more transshipment options for carriers and shippers, it makes the port selection decision more complex and difficult. To cope with this new set of challenges, this paper proposes a hybrid data envelopment analysis (DEA)/ analytic hierarchy process (AHP) model that is designed to identify factors …

Tls Newsletter Volume 4, Edition 2. October, 2010, Unf Transportation And Logistics Society

Transportation & Logistics Society Newsletter

Inside the Newsletter: In the Know--Join TLS, Prepare for the Future. General Meeting and Young Alumni Panel Ocotber 13th. Life after Graduation with Maria Lugovets. Important Upcoming Dates. Get to know TLS Recruitment Director Joseph Finnigan

Demonstrating The Benefits Of Green Streets For Active Aging: Initial Findings, Jennifer Dill, Margaret B. Neal, Vivek Shandas, Gretchen Luhr, Arlie Steven Adkins, Darin Lund

Urban Studies and Planning Faculty Publications and Presentations

This project will help demonstrate how sustainable ("green") streets contribute to the well-being of a community, including the physical and mental health of older and younger adults, along with the environment and economy. The project will collect data in Portland, OR neighborhoods to answer the following research questions: Are residents living near sustainable streets more physically active in their neighborhood? Do residents living near sustainable streets interact with neighbors more and demonstrate higher levels of neighborhood social capital? What are residents’ opinions of sustainable streets? Are there variations in responses to sustainable streets by age or other demographics? In particular, …

The Relationship Between Measures Of Operations Efficiency And Financial Success Of Truckload Motor Carriers: An Empirical Analysis, Ahren Johnston

Journal of Transportation Management

This research paper examines the statistical relationship between clay to day performance and effi­ ciency measures and financial performance in the motor carrier industry. Key findings are that carriers with more miles per tractor per year, a larger average length of haul, more revenue per mile, and more revenue per tractor per week tend to perform better financially as measured in three separate models by operating ratio, return on assets, or return on equity. Unexpectedly, for the eight publicly traded carriers included in the analysis, there was a negative relationship between empty mile percentage and financial performance, indicating that carriers …

Trip Patterns In Akure, Nigeria: A Land-Use Analytical Approach, A.O. Owolabi

Journal of Transportation Management

For transportation planners, the use of Origin-Destination (OD) matrix adjustment, is receiving considerable attention. However, there are concerns about the validity of results, primarily related to the number and location of traffic count posts. This leads to the question “What would be the best set of traffic count posts to use in OD matrix adjustment modules?” It has been proved that solving this problem is cumbersome. There have been several attempts (either exact or heuristic approaches) to address this problem. But due to the inherent complexities, there is no efficient and easy-to-use methodology able to address situations on the scale …

Using Artificial Neural Networks For Transport Decisions: Managerial Guidelines, Robert L. Cook, Lawrence O. Jenicke, Brian Gibson

Journal of Transportation Management

One information technology that may be considered by transportation managers, and which is included in the portfolio of technologies that encompass TMS. is artificial neural networks (ANNs). These artificially intelligent computer decision support software provide solutions by finding and recognizing complex patterns in data. ANNs have been used successfully by transportation managers to forecast transportation demand, estimate future transport costs, schedule vehicles and shipments, route vehicles and classify earners for selection. Artificial neural networks excel in transportation decision environments that are dynamic, complex and unstructured. This article introduces ANNs to transport managers by describing ANN technological capabilities, reporting the current …

The State Of The Region: Hampton Roads 2010, James V. Koch, Vinod Agarwal, Linda Candler, Lynn Clements, Chris Colburn, Vicky Curtis, Steve Daniel, Susan Hughes, Elizabeth Janik, Feng Lian, Sharon Lomax, Linda Mcgreevy, Janet Molinaro, Ken Plum, Wayne Talley, Ayush Toolsidass, Gilbert Yochum

Economics Faculty Books

This is Old Dominion University's 11th annual State of the Region Report. While it represents the work of many people connected in various ways to the university, the report does not constitute an official viewpoint of Old Dominion or it's president, John R. Broderick. The report maintains the goal of stimulating thought and discussion that ultimately will make Hampton Roads an even better place to live. We are proud of our region's many successes, but realize that it is possible to improve our performance. In order to do so, we must have accurate information about "where we are" and a …

Resilient Transportation Systems In A Post-Disaster Environment: A Case Study Of Opportunities Realized And Missed In The Greater New Orleans Region, 2010, James R. Amdal, Stanley L. Swigart

UNOTI Publications

Based upon our research in Post-Katrina New Orleans, we define transportation resiliency as a system’s ability to function before, during and after major disruptions through reliance upon multiple mobility options. The importance of a resilient transportation system becomes more apparent during disasters where multiple options for mobility are necessary for both passenger and goods movement due to the potential loss of one or more modes.

Post-Katrina New Orleans offers a unique opportunity to investigate pre-disaster planning and post-disaster recovery activities in a major metropolitan city where all modes of transportation were either severely damaged or completely destroyed. In response to …

Understanding The Contribution Of Highway Investment To National Economic Growth: Comments On Mamuneas’S Study, Randall W. Eberts

Reports

This paper reviews and summarizes current literature by Theofanis P. Mamuneas (2008) and Mamuneas with M. Ishaq Nadiri (2003) on the returns to highway investments. This paper first provides an overview of the conceptual relationship between highways and output. The next section describes the highway capital stock estimated by Fraumeni and used by Mamuneas. Next, the paper describes the study conducted by Mamuneas and analyzes the results for consistency within the modeling framework and in context with other studies. The paper then briefly summarizes the broad range of estimates from the literature to offer additional context. Finally, the paper offers …

Making Choice That Change Lives, Yizhao Yang

TREC Project Briefs

Children’s ability to walk or bike to school depends largely on where they live. Surprisingly, we know very little about how families make choices about where to live in relation to school travel. Existing school travel research has generally focused on the effects of environmental characteristics on the likelihood of children walking or biking to school. This project took a more comprehensive approach by examining the relationships between transportation to school, neighborhood walkability and where families choose to live.

Tracking Missing Drivers, James G. Strathman

TREC Project Briefs

By understanding driver absenteeism, transit providers can learn to manage it, Portland State University research suggests.

Envisioning Nevada’S Future: Goals & Strategies For Advancing Our Quality Of Life, Nevada Vision Stakeholder Group, Moody’S Analytics

Brookings Mountain West Publications

Nevada’s severe downturn has brought to light many of the long-term challenges facing the state. Not only is its economy subject to painful swings, but Nevada’s primary drivers— consumer services (primarily gaming, hospitality and housing) and resource extraction—will provide less support than they have in past business cycles. Less economic vitality will make it harder to offer Nevadans the quality of life they expect.

The importance of the economy to quality of life is equally clear—quality of life is a hollow promise without a healthy and supportive economy. Similarly, a proper fiscal structure—both in terms of spending and revenues—is critical …

Compressed Natural Gas (Cng) Transit Bus Experience Survey: April 2009—April 2010, R. Adams, D. B. Horne

Publications (T)

The U.S. Department of Energy (DOE) and the National Renewable Energy Laboratory (NREL) commissioned this survey to collect and analyze experiential data from U.S. transit agencies with varying degrees of compressed natural gas (CNG) bus and station experience. This information helps DOE and NREL determine areas of CNG transit bus success and priority areas for which further technical or other assistance might be required to enable success.

Clean Vehicle Education Foundation (CVEF) staff and subcontractors developed a battery of questions and identified 10 transit agencies to represent all U.S. transit agencies that use CNG buses, accounting for the diversity in …

Battery Technology For Electric And Hybrid Vehicles: Expert Views On Prospects For Advancement, Erin D. Baker, Haewon Chon, Jeffrey M. Keisler

Management Science and Information Systems Faculty Publication Series

In this paper we present the results of an expert elicitation on the prospects for advances in battery technology for electric and hybrid vehicles. We find disagreement among the experts on a wide range of topics, including the need for government funding, the probability of getting batteries with lithium metal anodes to work, and the probability of building safe Lithium-ion batteries. Averaging across experts we find that U.S. government expenditures of $150M/yr lead to a 66% chance of achieving a battery that costs less than $200/kWh, and a 20% chance for a cost of $90/kWh or less. Reducing the cost …

Tls Newsletter Volume 4, Edition 1. September, 2010., Unf Transportation And Logistics Society

Transportation & Logistics Society Newsletter

In the newsletter: In the Know--Transportation & Logistics Fall Career Day. First TLS General Meeting of the semester September 15th. Life after graduation with Eric Bateh. Important Upcoming Dates. Get to Know TLS President Cole Norton