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Contributing Factors Of Obesity Among Over-The-Road Truckers, Shari Weiss 2017 Walden University

Contributing Factors Of Obesity Among Over-The-Road Truckers, Shari Weiss

Walden Dissertations and Doctoral Studies

Obesity among over-the-road truckers (OTRs) is an epidemic creating significant public health issues among this population. The consequences of obesity (hypertension, diabetes, heart disease) put both truckers' health and their medical clearance at significant risk. The purpose of this study was to examine the impact of gender, physical activity, diet, and sleep on obesity among OTRs. Through a socioecological lens, this study examined whether obesity is significantly impacted by gender, physical activity, nutrition, and sleep. This study also examined the impact of the trucking environment on obesity. The study used a quantitative research design and data were collected through a ...


Deepwater Port Act Of 1974: Some International And Environmental Implications, James H. Gnann Jr. 2016 University of Georgia School of Law

Deepwater Port Act Of 1974: Some International And Environmental Implications, James H. Gnann Jr.

Georgia Journal of International & Comparative Law

No abstract provided.


The Impacts Of Using A Safety Compliance Standard In Highway Design, Paul J. Ossenbruggen 2016 University of New Hampshire

The Impacts Of Using A Safety Compliance Standard In Highway Design, Paul J. Ossenbruggen

RISK: Health, Safety & Environment

Dr. Ossenbruggen introduces an algorithmic method to objectively test and evaluate safety in the highway design process.


Webinar: State-Wide Pedestrian And Bicycle Miles Traveled: Can We Estimate It?, Krista Nordback 2016 University of North Carolina

Webinar: State-Wide Pedestrian And Bicycle Miles Traveled: Can We Estimate It?, Krista Nordback

TREC Webinar Series

Heard of Vehicle Miles Traveled (VMT)? Wouldn’t it be great to know the corresponding value for walking and cycling?

This webinar discusses options for estimating the miles people walk and bicycle on the state-wide level, by investigating the practical considerations of trying to compute these values for one study state.

What strategies can be used, and what data sources do these require?

How do these strategies compare?

How do PMT/BMT estimates vary based on data?

Find out what researchers found and what obstacles they encountered when they tried to estimate bicycle and pedestrian miles traveled in the State ...


Peak Pedaling: Has Portland Bicycling Reached The Top Of The Logistic Curve?, Robert McCullough 2016 McCullough Research

Peak Pedaling: Has Portland Bicycling Reached The Top Of The Logistic Curve?, Robert Mccullough

TREC Friday Seminar Series

The recent City Club report on bicycling provided an opportunity to collect and analyze a number of data sets including the new Hawthorne Bridge data. One question is where Portland bicycling on the logistic curve -- a common tool for judging the maturity of a developing product or activity. Logistic curves are used for marketing, for epidemiology, and even for visits to Indian owned casinos. The preliminary evidence is that we are reaching the horizontal area of the curve. Additional evidence Our further research into future policies indicates a shift to bicycle boulevards in order to attract more risk averse riders.


Pricing And Reliability Enhancements In The San Diego Activity-Based Travel Model, Joel Freedman 2016 Portland State University

Pricing And Reliability Enhancements In The San Diego Activity-Based Travel Model, Joel Freedman

TREC Friday Seminar Series

The estimation of demand for priced highway lanes is becoming increasingly important to agencies seeking to improve mobility and find alternative revenue sources for the provision of transportation infrastructure.

However, many modeling tools fall short of what is required for robust estimates of demand with respect to toll and managed lanes in two key areas:

  • The value-of-time is often aggregate and not consistently defined throughout the model system, and
  • The reliability of transport infrastructure is rarely taken into account.

This presentation describes an effort which implemented recommendations of the Strategic Highway Research Program C04 and L03\L04 tracks on pricing ...


Evaluation Of An Eco-Driving Intervention: Changing Knowledge, Attitudes, And Behavior By Means Of Supervisor Support, Donald M. Truxillo, John MacArthur, Leslie B. Hammer, Talya N. Bauer 2016 Portland State University

Evaluation Of An Eco-Driving Intervention: Changing Knowledge, Attitudes, And Behavior By Means Of Supervisor Support, Donald M. Truxillo, John Macarthur, Leslie B. Hammer, Talya N. Bauer

TREC Final Reports

Eco-driving consists of using energy-efficient approaches to driving aimed at reducing fuel consumption and, ultimately, CO2 emissions. A previous study found that an EcoDrive informational campaign was effective at increasing the use of eco-driving behaviors, but only when employees perceived that their supervisor supported the program and when they were personally motivated to perform the eco-driving behaviors. In order to build upon the findings of our previous study, the present study focused on increasing the use of eco-driving behaviors through an informational eco-driving campaign combined with supervisor training to support the use of eco-driving practices.

In this study we collected ...


Can You Get A Ticket? Adaptive Railway Booking Strategies By Customer Value, Jiana-Fu Wang, Ren-Huei Huang 2016 National Chung Hsing University

Can You Get A Ticket? Adaptive Railway Booking Strategies By Customer Value, Jiana-Fu Wang, Ren-Huei Huang

Journal of Public Transportation

This paper integrates a customer segmentation method with a discrete event simulation model to bridge the gap between identifying customer behaviors and using this knowledge to respond to customers and make the best use of resources. Three strategies are proposed and examined to improve the operation efficiency of a ticket-booking system. Their objective is to assist high-value customers in obtaining the tickets they want and/or reduce cancellations and failure-to-pays from low-value customers. Our simulation results demonstrate that the high-value, customer-friendly strategy beats all in assisting high-value customers and simultaneously improves railway operation performance. Additionally, the indirect, low-value customer abandonment ...


How Intermediate Capacity Modes Provide Accessibility And Resilience In Metropolitan Transit Networks: Insights From A Global Study Of 19 Cities, Jan Scheurer 2016 RMIT University

How Intermediate Capacity Modes Provide Accessibility And Resilience In Metropolitan Transit Networks: Insights From A Global Study Of 19 Cities, Jan Scheurer

Journal of Public Transportation

Drawing on the Spatial Network Analysis of Multimodal Urban Transport Systems (SNAMUTS) accessibility tool, this paper introduces comparative results of public transport network performance measures in 19 metropolitan regions in developed countries. These results are assessed typologically and functionally to highlight the contribution of each common public transport mode to maximize (or not) the integration of transport networks with the urban structure to optimize accessibility outcomes. It is shown that the capacity and performance spectrum embodied by each mode represents a gradual scale that allocates a specific niche to intermediate modes, particularly trams that are present in half the cities ...


Public Transit Equity Analysis At Metropolitan And Local Scales: A Focus On Nine Large Cities In The Us, Greg P. Griffin, Ipek N. Sener 2016 Texas A&M Transportation Institute

Public Transit Equity Analysis At Metropolitan And Local Scales: A Focus On Nine Large Cities In The Us, Greg P. Griffin, Ipek N. Sener

Journal of Public Transportation

Recent studies on transit service through an equity lens have captured broad trends from the literature and national-level data or analyzed disaggregate data at the local level. This study integrates these methods by employing a geostatistical analysis of new transit access and income data compilations from the Environmental Protection Agency. By using a national data set, this study demonstrates a method for income-based transit equity analysis and provides results spanning nine large auto-oriented cities in the US. Results demonstrate variability among cities’ transit services to low-income populations, with differing results when viewed at the regional and local levels. Regional-level analysis ...


A General Framework For Price Regulation Of Airports, Sock Yong PHANG 2016 Singapore Management University

A General Framework For Price Regulation Of Airports, Sock Yong Phang

PHANG Sock Yong

Price cap regulation (PCR) was first implemented for privatized utilities in the UK in the 1980s. It has since been adopted by numerous countries as a regulatory regime in several sectors. This paper focuses on the development of different forms of price regulation of airports of which PCR is one variant. In countries where airport privatization is still in the early stages, the spectrum of airports and varied nature of regulatory regimes can be confusing and the lack of a general framework can itself become an obstacle to privatization. This paper proposes a general framework comprising decisions to be made ...


Determinants Of Mobility Resource Ownership In Switzerland: Changes Between 2000 And 2010, Nicole Andréa Mathys, Matthias Kowald, Barbara Kieser, Andreas Justen 2016 Federal office for Spatial Development, University of Neuchâtel

Determinants Of Mobility Resource Ownership In Switzerland: Changes Between 2000 And 2010, Nicole Andréa Mathys, Matthias Kowald, Barbara Kieser, Andreas Justen

Nicole Andréa Mathys

The future development in mobility resource ownership is of great interest as the individual mobility behavior has critical impacts on transport infrastructure, land use, energy consumption, and environmental issues, such as greenhouse gas emissions and local air pollutants. Analysis and forecasts of mobility resource ownership as needed for example in transport modelling or forecast studies, however, usually employ data of the latest national travel surveys available. Therefore, changes in mobility resource ownership over time are often ignored. Estimating logit-based decision models on the large scale Swiss national travel survey data for 2000 and 2010, the study identifies determinants of mobility ...


Realistic Or Utopian? Coordinating Transit And Land Use To Achieve Equitable Transit-Oriented Development, Ian Carlton 2016 EcoNorthwest

Realistic Or Utopian? Coordinating Transit And Land Use To Achieve Equitable Transit-Oriented Development, Ian Carlton

TREC Friday Seminar Series

Equitable transit-oriented development (E-TOD)—the prioritization of social equity as an outcome of TOD implementation—has become a U.S. DOT policy stance, an objective of many other government bodies, and part of many NGOs' missions. But is it feasible to coordinate transit and land use in ways that allow us to achieve these goals, or is this a classic example of a wicked problem?

This talk will use Portland as a case study to explore some of the internal contradictions inherent in E-TOD goals, the systemic challenges that must be considered, and glimmers of hope for delivering E-TOD. Transportation ...


Spaceways: Airspace In Outer Space, Scott Haeffelin 2016 Embry-Riddle Aeronautical University

Spaceways: Airspace In Outer Space, Scott Haeffelin

Space Traffic Management Conference

Forecasted future demand in space travel is driving the need for the development of space traffic management. Currently, orbital space traffic is mostly unregulated with internationally agreed upon best practices and self-interest driving space operators to avoid collisions with other spacecraft. This paper explores the future of space travel by presenting a concept of creating “airspace in space” or spaceways to manage the ever growing volumes of space traffic. Spaceways are analogous to airspace for aircraft with the goal of increasing levels of safety and reducing probabilities of collision. These goals can be achieved by creating traffic rules, defining valuable ...


Webinar: The Association Between Light Rail Transit, Streetcars And Bus Rapid Transit On Jobs, People And Rents, Arthur C. Nelson 2016 University of Arizona

Webinar: The Association Between Light Rail Transit, Streetcars And Bus Rapid Transit On Jobs, People And Rents, Arthur C. Nelson

TREC Webinar Series

What are the job, residential development and market rent outcomes of Light Rail Transit (LRT), Streetcar Transit (SCT) and Bus Rapid Transit (BRT)?

LRT, SCR and BRT investments are spreading rapidly across the country but there is scant evidence of their effect on where people work and live, and effects on market rents as an indicator of value. This webinar will summarize several years of NITC-sponsored research into development outcomes associated with these transit investments. The webinar will be led by NITC researcher Arthur C. Nelson who was the principal investigator of two projects: Do TODs Make a Difference? and ...


Lessons From The Development Of A Guidebook On Pedestrian And Bicycle Connections To Transit, Nathan McNeil, Allison Boyce Duncan, Drew DeVitis 2016 Portland State University

Lessons From The Development Of A Guidebook On Pedestrian And Bicycle Connections To Transit, Nathan Mcneil, Allison Boyce Duncan, Drew Devitis

TREC Friday Seminar Series

To improve safety and increase transit use, transit agencies and the jurisdictions they serve have to approach transit service as door-to-door not just stop-to-stop.

Walking and bicycling are key modes for transit access.

Working with the Federal Transit Administration, a team from Portland State University developed a guidebook on improving pedestrian and bicycle access to transit (forthcoming). As part of the guidebook process, the PSU team conducted case studies on best practices of recent efforts in Minneapolis, Los Angeles and Atlanta.

This presentation will cover key lessons from the case studies, along with an overview of the guidebook.


Individual Control Of Risk: Seat Belt Use, Subjective Norms And The Theory Of Reasoned Action, Juanita V. Field, Kenneth D. Boehm, Kevin M. Vincent, Jessica L. Sullivan 2016 University of New Hampshire

Individual Control Of Risk: Seat Belt Use, Subjective Norms And The Theory Of Reasoned Action, Juanita V. Field, Kenneth D. Boehm, Kevin M. Vincent, Jessica L. Sullivan

RISK: Health, Safety & Environment

When faced with a risk for which an inexpensive solution is available, individuals often choose the risk rather than the solution. Protection from certain kinds of risks, e.g., using seat belts or condoms or insulating against radon, is largely under personal control, but individuals often choose not to comply with behaviors which would reduce the risk. The Theory of Reasoned Action (TRA) has been used to predict when individuals will comply. The authors attempted to validate aspects of the TRA by the use of scenarios. Factor analysis of their data supports the theory that intention is a major determinate ...


Webinar: Transit Signal Priority Evaluation And Performance Measures, Miguel Figliozzi 2016 Portland State University

Webinar: Transit Signal Priority Evaluation And Performance Measures, Miguel Figliozzi

TREC Webinar Series

Transit signal priority (TSP) can reduce transit delay at signalized intersections by making phasing adjustments. TSP is a relatively inexpensive tool to provide faster and more reliable transit service. This webinar addresses TSP real-word performance measures as well as data integration and evaluation challenges. Results of the TSP evaluation in an arterial corridor in Portland, Oregon indicate that a timely and effective TSP system requires a high degree of sophistication, monitoring, and maintenance. TSP timing is crucial to reduce transit delay.

Key takeaways include: performance measures, methodology, analysis of early green and red extension pros and cons, novel real-world results.


Congestion Modeling And Mitigation In The National Airspace System, David Lovell 2016 University Of Maryland College Park

Congestion Modeling And Mitigation In The National Airspace System, David Lovell

TREC Friday Seminar Series

Dr. Lovell will talk about three projects funded by NASA and the FAA, addressing congestion in the National Airspace System. Dr. Lovell's team developed diffusion-based queuing models of individual airports that could support better building blocks for network-wide congestion models. The advantage of the new models is their flexibility with respect to input distributions. In a study for the FAA, Dr. Lovell's team developed day-of-operations collaboration "languages" suitable for the FAA and individual carriers in order to collectively manage expected airspace disruptions. Finally, he will discuss a study on predictability in the airspace, with a focus on scheduled ...


Development Of The Idaho Statewide Travel Demand Model Trip Matrices Using Cell Phone Od Data And Origin Destination Matrix Estimation, Ben Stabler 2016 Parsons Brinckerhoff

Development Of The Idaho Statewide Travel Demand Model Trip Matrices Using Cell Phone Od Data And Origin Destination Matrix Estimation, Ben Stabler

TREC Friday Seminar Series

As part of the initial phase of development for the Idaho Statewide Travel Demand Model, Parsons Brinckerhoff developed a base year auto and truck trip matrix using AirSage cell phone OD data, a statewide network in Cube, traffic counts, and origin-destination matrix estimation (ODME) procedures. To begin, the 4000+ statewide zone system was aggregated into a 700 super zone system for collecting the cell phone OD data. Next, the cell phone data was collected for the month of September 2013 for the following market segments: Average weekday resident HBW, HBO, NHB, and visitor NHB trips. The cell phone trips were ...


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