Transportation Commons^™

School Program Planning To Increase Active Transport To School, Brenda Aguilar

McNair Poster Presentations

Studies have shown that active transport is known to increase physical activity of children, decrease traffic congestion and the production of greenhouse gasses. This study examines active transport to school (ATS) [walking, biking, or other self-powered wheels to school] among elementary students. Through the Nevada Moves Day program an increase proportion of elementary students who use ATS was expected.

This study was done at two elementary schools, one being the intervention school that participated in the Nevada Moves Day, and a control school, which did not participate. Data was collected over a three week period. Students using active transport and …

Rail Security: Critical Insights And Applications, Mti

Mineta Transportation Institute

The Mineta Transportation Institute (MTI) presented a workshop at the request of the Transportation Research Board (TRB) Committee. The half-day discussion was offered on a timely, relevant, and critical topic, given the revelations that Osama bin Laden and al Qaida may have been planning rail attacks in the United States. While these plans were not well developed, it did underscore that terrorists do plan to expand their attacks beyond Europe and Asia. MTI presented the forum because it strongly believes that passenger rail security must be given much greater attention, especially because of the open nature of the mode and …

Estimating The Impact Of Cell Phone Laws On Car Accident Fatalities, Odinakachi Anyanwu

Pepperdine Policy Review

No abstract provided.

Does Commuting Lead To Migration?, Xiaobing Shuai

School of Professional and Continuing Studies Faculty Publications

This paper investigates the interaction between commuting and migration within a local labor market, focusing especially on the question of whether commuting can lead to migration over time. Using Virginia data from 2000 to 2006, the study shows that the commuting flow between two locations has a positive and significant effect on the migration flow in the same direction in subsequent years. The underlying reasons are that increased commuting costs or reduced migration costs can induce commuters to become migrants. These results may have useful implications for urban communities in their revitalization efforts, as cities can explore ways of attracting …

Neighborhood Crime And Travel Behavior: An Investigation Of The Influence Of Neighborhood Crime Rates On Mode Choice – Phase Ii, Christopher Ferrell, Shishir Mathur

Faculty Publications, Urban and Regional Planning

No abstract provided.

Evacuee Route Choice Decisions In A Dynamic Hurricane Evacuation Context, R. Michael Robinson, Asad Khattak

VMASC Publications

Very high traffic volumes may lead to extensive congestion during hurricane evacuations. Evacuation planners reduce this congestion by careful planning for multiple hurricane scenarios and assignment of evacuation routes and timing. This planning may be for naught if obstructions block key roadways. An advanced traveler information system (ATIS) may be used to guide evacuees to alternate routes, but how effective will that guidance be? Should the use of alternate routes be encouraged? How are drivers likely to respond to delays and information? Will information shorten or improve the reliability of travel times in emergency conditions? Integration of a dynamic evacuation …

Understanding Transit Ridership Demand For A Multi-Destination, Multimodal Transit Network In An American Metropolitan Area, Research Report 11-06, Gregory Thompson, Jeffrey Brown, Torsha Bhattacharya, Michal Jaroszynski

Mineta Transportation Institute

This study examines the factors underlying transit demand in the multi-destination, integrated bus and rail transit network for Atlanta, Georgia. Atlanta provides an opportunity to explore the consequences of a multi-destination transit network for bus patrons (largely transit-dependent riders) and rail patrons (who disproportionately illustrate choice rider characteristics). Using data obtained from the 2000 Census, coupled with data obtained from local and regional organizations in the Atlanta metropolitan area, we estimate several statistical models that explain the pattern of transit commute trips across the Atlanta metropolitan area. The models show that bus riders and rail riders are different, with bus …

Neighborhood Crime And Travel Behavior: An Investigation Of The Influence Of Neighborhood Crime Rates On Mode Choice – Phase Ii, Mti Report 11-04, Christopher Ferrell, Shishir Mathur, Justin Meek, Matthew Piven

Mineta Transportation Institute

There are considerable environmental and public health benefits if people choose to walk, bicycle, or ride transit, instead of drive. However, little work has been done on the effects of neighborhood crimes on mode choice. Instinctively, we understand that the threats posed by possible criminal activity in one’s neighborhood can play a major role in the decision to drive, take transit, walk or ride a bicycle, but so far little empirical evidence supports this notion, let alone guides public infrastructure investments, land use planning, or the allocation of police services. This report--describing Phase 2 of a research study conducted for …

A New One-Level Convex Optimization Approach For Estimating Origin-Destination Demand, Wei Shen, Laura Wynter

Research Collection School Of Computing and Information Systems

Accurately estimating Origin–Destination (OD) trip tables based on traffic data has become crucial in many real-time traffic applications. The problem of OD estimation is traditionally modeled as a bilevel network design problem (NDP), which is challenging to solve in large-scale networks. In this paper, we propose a new one-level convex optimization formulation to reasonably approximate the bilevel structure, thus allowing the development of more efficient solution algorithms. This one-level approach is consistent with user equilibrium conditions, and improves previous one-level relaxed OD estimation formulations in the literature by ‘equilibrating’ path flows using external path cost parameters. Our new formulation can, …

Investigating Hydrogen Enhanced Combustion In A Sustainability Context, Glenn Zammit

Masters Theses, 2010-2019

Since their invention, internal combustion engines have played a major role in the social and economic development of many countries by allowing people and goods to move from one place to another for longer distances and in shorter times. However, the negative environmental impacts of the widespread use of internal combustion engines in private and commercial vehicles have reached alarming values, with future prospects being much worse. In addition, fuel consumption and the dependency on oil imports of many countries have increased sharply in the past years as vehicle populations and use increased. The current trends are clearly unsustainable and …

Spatial Analysis Of Fatal Automobile Crashes In Kentucky, William Nathan Oris

Masters Theses & Specialist Projects

Fatal automobile crashes have claimed the lives of over 33,000 people each year in the United States since 1995. As in any point event, fatal crash events do not occur randomly in time or space. The objectives of this study were to identify spatial patterns and hot spots in FARS (Fatal Analysis Reporting System) fatal crash events based on temporal and demographic characteristics. The methods employed included 1) rate calculation using FARS points and average daily traffic flow; 2) planar kernel density estimation of FARS crash events based on temporal and demographic attributes within the data; and 3) two case …

One Year Performance Of Longitudinal Waterborne Paint Pavement Markings Used On Primary And Secondary Roads Of South Carolina, Sudhakar Pandurangan

All Theses

Pavement markings are made retroreflective so that roads are more visible. But retroreflectivity degrades over time due to a number of factors. Although the Federal Highway Administration has yet to finalize minimum standards for retroreflectivity, the degradation of pavement marking retroreflectivity can be detrimental to safety. The primary objective of this thesis was to use statistics to develop and validate regression models to predict the degradation of water borne pavement marking retroreflectivity. This will provide the South Carolina Department of Transportation (SCDOT) a systematic means to determine when markings should be replaced.
To achieve this objective an LTL-X handheld retroreflectometer …

The Nature Of Context-Sensitive Solutions, Stakeholder Involvement And Critical Issues In The Urban Context, Marta Panero, Jan Botha

Mineta Transportation Institute

Over the last several decades many transportation and planning agencies have experienced conflicting demands emerging from the need to develop projects in an expeditious manner while at the same time involving stakeholders in the decision-making process, which sometimes is perceived as slowing project delivery and/or increasing costs. Given this tension between apparently conflicting demands, it is important to understand how the stakeholder involvement is being carried out and what best practices may be recommended. This study examines the issue in the context of a relatively new policy framework – Context Sensitive Solutions (CSS) – which supports the early integration of …

Have We Become A Template Nation?, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

In his commentary, SMU assistant professor of law Eugene Tan observed that last week's three MRT service breakdowns have raised concerns over whether our public transport system is able to cope with the increased commuter load and public expectations. While the road and rail infrastructure has grown significantly in the last few years, doubts now fester as to whether the relevant organisations, the people who run them and the systems and policies, have kept pace.

Lane Transit District Integrated Functional Transportation Assessment Project: Findings From A Case Study And Developmental Evaluation, Margaret B. Neal, Susan Eliot, Mark Person, Jost Lottes

Institute on Aging Publications

This report describes the results of a case study and developmental evaluation of Lane Transit District's innovative project to develop an integrated functional assessment for transportation services, referred to here simply as the Transportation Assessment Project (TAP).

The TAP is unique in that it is a collaborative effort between a public transit agency and local human service agencies to blend traditionally separate assessments for eligibility for transportation services. Specifically, in the TAP, Lane Transit District subcontracts with human services agencies to conduct personalized in-home assessments with individuals with special transportation needs and who are requesting paratransit rides. While in the …

Development Of A Simulation Tool For Analysis Of Freeway Crashes Due To Cell Phone Usage, Sourabh Sriom

UNLV Theses, Dissertations, Professional Papers, and Capstones

Research shows that drivers are susceptible to numerous distractions while driving which can be held responsible as the reason of a crash. Usage of cell phones, i.e. talking or texting while driving is considered one of the prominent distractions which causes a crash. This dissertation aims to study the number of crashes occurring on the freeways and their relation with the drivers of these cars using cell phones while they are driving. Since crashes occur relatively less frequently, the study of crashes is done using what is called the "rare event" theory. Java based simulations are done to model a …

Design Of A Dynamic Activity Travel Modeling System For Metro, John Gliebe

Urban Studies and Planning Faculty Publications and Presentations

Trip-based models are no longer adequate for some of the more complex questions. They fail to account for time of day sensitivity, dynamic congestion effects, variable pricing and tolls, and the reliability of both highways and transit. Existing activity/tour-based models lack the enhanced temporal element provided by a more dynamic, activity-based microsimulation. DASH is the next-generation model being developed by the Metro Research Center.

Tls Newsletter. Volume 6, Edition 3. November, 2011, Unf Transportation And Logistics Society

Transportation & Logistics Society Newsletter

Inside the Newsletter: TLS Trivia Night, Wednesday November 9th. TLS President's Corner Tom Branning. TLS Community--Hubbard House and Propeller Club. TLS Tidbits: Business/Networking cards. Get to Know TLS Secretary Paula Nelson. TLS on Tour: Anheuser-Busch Brewmaster. Life after Graduation with Claudia Gorham.

Establishing New Orleans As A Leader In Active Transportation: Solidifying Progress, Moving Towards An Active Transportation Culture, Billy Fields

UNOTI Publications

Research in this brief by the Pedestrian Bicycle Resource Initiative (PBRI) at the University of New Orleans highlights the growing use of active transportation in New Orleans and the potential to solidify these gains through a process of culture change that makes active transportation an integral element in the overall transportation system. New Orleans is currently a regional leader in active transportation with a high national ranking in active transportation commute mode shares. While these rankings are promising, New Orleans lacks a clear, institutionalized system for integrating active transportation into the overall transportation decision-making structure. The process of solidifying and …

A Capping Case Study: Integrating Freight Rail Into A Community Setting, Jeff Schnabel, Tristan Brasseur

TREC Final Reports

This investigation seeks to explore specific design solutions that could potentially enhance the capabilities of heavy rail facilities while increasing their safety and reducing their environmental and community impacts.

Using Portland's Brooklyn Rail Yard as the study site, this case study explored the potential of structural platforms (caps) built above the existing rail yards to provide development space for expanding rail capacity and rail related activities. The potential for capping to reduce /eliminate conflicts between rail and non-rail uses will also be investigated. Finally, the various designs were presented for caps at the rail yard.

Capping projects (the development of …

A Pomdp Model For Guiding Taxi Cruising In A Congested Urban City, Lucas Agussurja, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

We consider a partially observable Markov decision process (POMDP) model for improving a taxi agent cruising decision in a congested urban city. Using real-world data provided by a large taxi company in Singapore as a guide, we derive the state transition function of the POMDP. Specifically, we model the cruising behavior of the drivers as continuous-time Markov chains. We then apply dynamic programming algorithm for finding the optimal policy of the driver agent. Using a simulation, we show that this policy is significantly better than a greedy policy in congested road network.

The Fairmount Initiative Quarterly Progress Report: People And Places: Understanding The Processes, Outcomes And Impacts Of Interventions Of The Fairmount Corridor, Donna H. Friedman

Center for Social Policy Publications

The Boston Foundation has contracted with the Center for Social Policy as an analytical and evaluation partner for a five year period, December 1, 2010 to November 30, 2015, to maximize effectiveness and create alignment among its people and place based efforts in Boston’s Fairmount commuter rail corridor. The geographic area, encompassing Fairmount neighborhoods which are home to approximately 88,000 residents, extends for 9.2 miles from the Newmarket Transit Station in the north to the Readville Transit Station in the south.

The detail to follow in this report provides an overview of each of the four initiatives, its progress over …

2010 Transit Oriented Developments Survey, Jennifer Dill

TREC Final Reports

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.

A Foreigner’S Gaze On The Micro-Culture Of The Car-Rapide—Senegalese Values Vs. Monetary Lust, Merrill Pierce

Independent Study Project (ISP) Collection

The vibrant, chaotic, and interactive Car Rapide, a poignant micro-culture in Dakar, is a visually communicative entity and social space in Senegal’s transportation system. From an outsider’s gaze, this project addresses the history, artistic and religious significance, inner-workings of the system of employees, and present day implications of the car-rapide. The car-rapide emerges as the embodiment of both valuable and challenging aspects of Senegalese culture.

Bridge Damage Models For Seismic Risk Assessment Of Oregon Highway Network, Peter Dusicka, Jeffery Roberts

TREC Final Reports

The highway transportation network of the United States relies on the health and integrity of major infrastructure elements such as bridges. Frequently traveled parts of Oregon are within the seismically active Pacific Northwest and many of the bridges were designed and built to lateral demands that were assumed to be less than the current expectation, a deficiency caused by our growing awareness of seismic hazard and our enhanced understanding of the non-linear response of bridges. This vulnerability to damage from earthquakes can result in not only immediate damage, but also in potentially lingering economic impact caused by the disruption to …

Concentration In The Airline Industry: Evidence Of Economies Of Scale?, Ahren Johnston, John Ozment

Journal of Transportation Management

The early experience of the airline industry under deregulation was very much as expected, with increased competition and new entrants offering highly competitive rates. However, there are approximately 130 airlines operating today, and the industry remains more heavily concentrated than it was prior to deregulation. This study reports on concentration in the US airline industry between 1970 and 2009, as measured by the Hcrfindahl-Hirschman Index (HHI) and Concentration Ratio, together with changes in industry costs. The results show a trend of industry-wide reduced costs per available seat mile that is negatively correlated with the increased level of industry output over …

Combined Seismic Plus Live Load Analysis Of Highway Bridges, Michael H. Scott, Minjie Zhu

TREC Final Reports

The combination of seismic and vehicle live loadings on bridges is an important design consideration. There are well-established design provisions for how the individual loadings affect bridge response: structural components that carry vertical live loads are designed to remain well within the linear-elastic range while lateral load carrying components are designed to yield under large seismic excitations. The weight of the bridge superstructure is taken in to account as dead load in structural analysis for seismic loads; however, the effects of additional mass and damping of live loads on the bridge deck are neglected. To improve the design of highway …

Cross-Cultural Validation Of The Factorial Structure Of A Logistics Strategy Model: A Three-Country Study, Michael A. Mcginnis, Talha Harcar, Ali Kara, John E. Spillan

Journal of Transportation Management

In 2011, McGinnis, Kohn, and Kara reported the effects of overall logisties strategy (OLS) on logistics coordination effectiveness, customer service effectiveness, and organizational competitive responsiveness. This manuscript empirically compares the three dimensions of the Bowersox Daugherty typology to logisties strategies among U.S., Turkish, and Guatemalan companies. US, Turkish, and Guatemalan subjects (logistics managers) were chosen to test the underlying factor structure and measurement equivalences of the scales used. Using confirmatory factor analysis (CFA), findings indicate that the three dimensions of the Overall Logistics Strategy (OLS) - Process Strategy, Market Strategy, and Information Strategy - hold in all three country environments …

A Commentary: The Perfect Storm: Schramm Decision, Fmcsa, And An Imposible Duty For Brokers And Third Party Logistics Companies, Paul Stewart

Journal of Transportation Management

Over the last thirty years, there never has been a more confused doctrine than the current “duty of reasonable care” faced by transportation brokers, third-party logistics companies and shippers as they select carriers for transport. The confusion in what was once reasonable and well understood law has been fueled by a perfect storm ofjudicial reasoning with misplaced reference to faulty empirical data, the complete failure of the Federal Motor Carrier Safety Administration (FMCSA) to properly assess carrier safety worthiness, a feeding frenzy by the plaintiffs’ bar and apathy by many in the industry. The purpose of this commentary is to …

Competitive Advantage And Fuel Efficiency In Aviation, Adam D. Reiman, Alan W. Johnson, William A. Cunningham

Journal of Transportation Management

This paper builds upon a resource based view of competitive advantage under a dynamic capabilities construct. Fuel efficiency measurement in the aviation industry can be incorporated into dynamic capabilities such as strategic decision making and alliancing. These dynamic capabilities can drive operational cost reductions, which in-turn can enhance profitability and establish a competitive advantage. To further this advantage, fuel efficiency can be embedded inside an organizational culture. A fuel efficiency focused organizational culture can be a valuable, rare, inimitable and non- substitutable resource. This paper proposes a model to merge the dynamic capabilities of strategic decision making and alliancing with …