Transportation Commons^™

A New Approach To Speaker Relevence Using A Logistics Executive In Residence Course, Stephen M. Rutner, Scott R. Cox, Maria E. Aviles

Journal of Transportation Management

This article addresses a new method to bring real world relevance into the Logistics, Transportation and Supply Chain Management classroom. A different type of Executive in Residence course focuses on using multiple industry speakers to provide a unique learning environment for today’s Millennial majors. While the majority of the paper is a thought based overview, a statistical analysis of student responses was used to compare various types of relevant courses. A simple comparison of various appropriate items was examined to identify if the Executive in Residence course increased learning. Both the anecdotal and statistical evidence suggests that the Executive in …

Workshop Synthesis: Sampling Issues, Data Quality & Data Protection, Jimmy Armoogum, Jennifer Dill

Urban Studies and Planning Faculty Publications and Presentations

This workshop discussed various aspect of the mathematical part of survey methodology, as well as archiving and confidentiality issues aimed at improving data quality and its use through time. Participants identified ways to correct or minimize bias by dealing with incomplete sampling frames, using weighing and imputing procedures. We discussed methods to archive and share GPS-based survey data to preserve anonymity. Finally, we debated research needs on these topics for the next following years.

Crash Frequency Analysis Of Left-Side Merging And Diverging Areas On Urban Freeway Segments: A Case Study Of I-75 Through Downtown Dayton, Ohio, Deogratias Eustace, Aline Aylo, Worku Y. Mergia

Civil and Environmental Engineering and Engineering Mechanics Faculty Publications

This paper analyzes the effect of left- and right-side merging and diverging areas and other variables such as light condition, roadway pavement condition, drivers’ age and presence of construction work zones on the occurrence frequency of crashes. A 6.5-mile (10.5-km) section of I-75 that passes through downtown Dayton, Ohio was considered. The area of interest has a high traffic volume and consists of different geometric design challenges including closely spaced merging and diverging ramps. A four-year record of crash data (2005–2008) and a statistical modeling technique that assumes a negative binomial distribution on generalized linear models (GLMs) were used to …

The Effects Of Discussion And Information On Public Support For Tax And Fee Increases For Transportation, Juita-Elena Yusuf, Lenahan O'Connell

School of Public Service Faculty Publications

This research note compares the effect on willingness to raise taxes and government fees of three common approaches to public consultation: (a) a telephone survey with no information or discussion, (b) a focus group with discussion but no information relating need to the proposed tax or fee, and (c) a focus group with discussion and such information. Our purpose is twofold: (a) illustrate the contribution of pertinent information to public acceptance of tax or fee increases, and (b) suggest a more comprehensive and informative approach to consultation with the public. We do so using the examples of raising the gas …

Did Beijing's Vehicle Use Restriction Policy Reduce Smog In 2014? A Time Series Analysis Using Chinese Government And Us Embassy Data, Ning Li

MPA/MPP/MPFM Capstone Projects

Objective:

The analysis in this paper is designed to find out whether the vehicle use restriction policy issued by Beijing Municipal Government contributed to a change of air quality in 2014. I analyze both Chinese data and data collected by the U.S. Embassy in Beijing in order to determine whether the type of data used makes a difference to the findings.

Method:

I conduct a regression analysis with time series data. The analysis unit is the day. The main independent variable is the holiday schedule during 2014 that determined whether the restriction policy was in place or not. There are …

Gis Approach In Vehicle Route Optimization For Residential Recyclables Collection, Karel Kus

Open Access Theses & Dissertations

This Thesis focuses on evaluation of utilization of Geographic Information Systems (GIS) for solving the residential recyclables collection routing problems.

Recyclables collection is considered as a part of reverse logistics to which a specific routing problem is connected. Rise of recycling rate in recent years, and always high transportation costs are the main drivers for looking for the new methods how to optimize routing in residential recyclables collection. Geospatial relation of data by Geographic Information Systems (GIS) software can be used to design and analyze the routing strategy. In this Thesis ArcGIS and its Network Analyst extension is used to …

Road Management System And Road Safety In Uganda, Paul Gudoi Zanule

Walden Dissertations and Doctoral Studies

Traffic collisions cost Uganda millions of dollars each year. The purpose of this descriptive case study was to describe the strategies and processes needed to implement a road management system. Such a system would significantly reduce the fatalities and accidents in Uganda, improve the transportation within Kampala's business district, and increase business profitability. Three conceptual theories framed the research study: management theory, strategic management theory, and criminology theory. Using a snowball sampling strategy, data were collected from open-ended interviews, questionnaires, observations, and archived documents from 20 administrative participants in the government and organizational leaders involved in the transport operations and …

Integrating Truck Emissions Cost In Traffic Assignment, Peter Foytik, R. Michael Robinson

VMASC Publications

The adverse impacts of greenhouse gasses (GHG) and the imperative for reducing the existing rate of GHG production are well established. In the United States, the largest source of GHG emissions from human activities is from burning fossil fuels, primarily for the generation of electricity and transportation. The transportation sector accounts for 28% of all U.S. GHG production. Heavy-duty vehicles, such as large freight trucks, account for nearly one-fifth of the U.S. total, and this fraction is expected to grow rapidly. Consequently, many efforts are being used to reduce the total emissions of freight trucks. Most efforts emphasize one of …

Exploring A Toll Auction Mechanism Enabled By Vehicle-To-Infrastructure Technology, Andrew J. Collins, Erika Frydenlund, R. Michael Robinson, Mecit Cetin

VMASC Publications

High-occupancy toll (HOT) lanes—an increasingly popular solution for congested roadway networks—give drivers the option to access express lanes. The cost of entry often varies with demand, although no standard method of optimizing these price points exists. Using the principles of a Vickrey auction that incentivizes true-value bids, this paper proposes a tolling system that uses vehicle-to-infrastructure technology to optimize toll operator revenue with HOT lane usage. In the scenario, a roadway network consists of a HOT lane and a general-purpose lane, each with identical physical properties. Drivers can access the HOT lane at the start of the facility or at …

A Rapid Approach For Considering Nonlinear Response Of Flexible Pavements Under Fwd And Estimation Of Remaining Lives Of Pavements, Shahabaldin Shirazi

Open Access Theses & Dissertations

Most mechanistic empirical pavement analyses are based on the layered elastic models where the stress sensitivity of geomaterials and their nonlinearity are either ignored or accounted for indirectly. Advanced numerical models, such as finite element models, are required to consider the nonlinear nature of the geomaterials. Existing pavements are often tested with the Falling Weight Deflectometer (FWD) to estimate the input moduli to the layered elastic models in order to estimate remaining life and structural capacity of pavements. It has been more than 30 years that FWD tests are being performed to measure structural adequacy of pavements. Backcalculation is the …

The Slow Mo' Main Street Concept Plan, Brandi Campbell, Amanda Davidowitz, Neil Heller, Liz Kaster, Matt Lee, Kathy Wilson

Master of Urban and Regional Planning Workshop Projects

Mosier is a community located in the scenic Columbia River Gorge that is "small enough to make a difference." Mosier prides itself on its historic roots, progressive community, its role as a gateway to the agricultural valleys of Eastern Oregon. Unfortunately, Mosier's Main Street, Historic Highway 30, does not reflect the community's commitment to sustainability, economic development, and multimodal transportation. The Slow Mo' Main Street Concept Plan is a high-level guide for future transportation planning along highway 30 in downtown Mosier. The plan outlines conceptual design strategies and programmatic recommendations for Highway 30, to help ensure that Mosier's Main Street …

Design Of Screening System For Transatlantic Container Transport, Michal Jizba

Open Access Theses & Dissertations

Maritime container transport plays a major role in international trade. As such, it can be an attractive target of acts of unlawful interference, e.g., smuggling, piracy or terrorism. One major issue of maritime security is the container screening at ports, which is the main focus of this Thesis. The goal of this Thesis is to study the efficiency of different designs of screening systems using simulation. The literature review covers contemporary laws and requirements, container screening equipment and processes related to screening that take place in seaports. Next, operation of three screening checkpoints models, which symbolize predominant approaches to container …

Adjusting Ite’S Trip Generation Handbook For Urban Context, Kelly J. Clifton, Kristina Marie Currans, Christopher D. Muhs

Civil and Environmental Engineering Faculty Publications and Presentations

This study examines the ways in which urban context affects vehicle trip generation rates across three land uses. An intercept travel survey was administered at 78 establishments (high-turnover restaurants, convenience markets, and drinking places) in the Portland, Oregon, region during 2011. This approach was developed to adjust the Institute of Transportation Engineers (ITE) Trip Generation Handbook vehicle trip rates based on built environment characteristics where the establishments were located. A number of policy-relevant built environment measures were used to estimate a set of nine models predicting an adjustment to ITE trip rates. Each model was estimated as a single measure: …

A Level-Of-Service Model For Protected Bike Lanes, Nick Foster, Christopher Monsere, Jennifer Dill, Kelly Clifton

Civil and Environmental Engineering Faculty Publications and Presentations

Several methods exist for quantifying the quality of service provided by a roadway from a bicyclist’s perspective; however, many of these models do not consider physically protected bike lanes and, of those that do, none is based on empirical data from the US. This is problematic as engineers, planners, and elected officials are increasingly looking to objective performance measures to help guide transportation project design and funding prioritization decisions. This paper addresses this gap by presenting a cumulative logistic model to predict user comfort on protected bike lanes developed from data collected during in-person video surveys. The surveys were conducted …

Feasibility Analysis And Strategic Measures For Promoting Viable New Urban Development, Elizabeth J. Farr

CMC Senior Theses

This thesis demonstrates that New Urbanism is both an advisable and feasible method for reducing carbon emissions to mitigate global climate change. New Urban areas commonly generate lower carbon emissions compared to conventional suburban development due to lower car use and higher levels of walking and use of other forms of transportation. Economic and political feasibility of New Urban development is determined by analyzing case studies, housing price premia, financing, and fiscal impact. The many contexts and perspectives involved in the planning process are analyzed to determine if New Urbanism is advisable in the larger setting in which developers, advocates, …

Economic And Traffic Impacts Following The Installation Of New Bicycle Facilities: A Denver Case Study, Stephen Antonio Rijo

Electronic Theses and Dissertations

America is currently experiencing a unique departure from the historical vehicle miles traveled (VMT) trend, often referred to as "peak travel." Decreasing VMT numbers suggest that the US is currently experiencing an unprecedented change in the way individuals utilize transportation systems. The following research calls on a need to understand the importance of improving alternative transportation infrastructure, namely cycling facilities, and how this impacts local businesses and their communities. This research informs the overarching question, "What are the economic and traffic impacts of cycling facilities?" A mixed methods analysis of retail sales tax, traffic count, and RTD transit access data …

European Airport Concessions: Retail Strategies To Improve Commercial Revenue From Leisure Travelers, René W. B. Puls

Walden Dissertations and Doctoral Studies

Aeronautical revenue from landing and handling charges to carriers is falling significantly below 60% of total revenue and will not persist as the main source of income for airports. Airports in Europe cannot continue to rely on profits from airlines; operating companies need to improve the competitiveness through commercial income from different traveler types. The purpose of this multiple case study was to understand the elements of successful sales strategies by concessionaires (retailers) at the metropolitan airport system of Zurich and Basel in hopes of improving the nonaeronautical revenue from leisure travelers, a price-sensitive customer segment. The conceptual framework was …

Business Strategies To Improve On-Time Deliveries And Profits In Southcentral Alaska, Donald Richard Leaver Ii

Walden Dissertations and Doctoral Studies

Traffic congestion can cause late deliveries, decreased profits from vehicle fuel idling in traffic, and delayed distribution in tight delivery windows. The focus of this study was on developing strategies that business leaders could use to increase on-time deliveries. The conceptual frameworks for this case study were systems theory, traffic equilibrium theory, bathtub theory, and kinematic wave theory. Data were collected from semistructured interviews with 6 delivery service leaders from 3 delivery businesses in Southcentral Alaska. In addition, secondary data were collected from government information. Interview responses were coded to identify trends including delivery time, business activity, and amount of …

Stability Of Transportation Networks Under Adaptive Routing Policies, Sebastien Boyer, Sebastien Blandin, Laura Wynter

Research Collection School Of Computing and Information Systems

Growing concerns regarding urban congestion, and the recent explosion of mobile devices able to provide real-time information to traffic users have motivated increasing reliance on real-time route guidance for the online management of traffic networks. However, while the theory of traffic equilibria is very well-known, much fewer results exist on the stability of such equilibria, especially in the context of adaptive routing policy. In this work, we consider the problem of characterizing the stability properties of traffic equilibria in the context of online adaptive route choice induced by GPS-based decision making. We first extend the recent framework of “Markovian Traffic …

Major Challenges And Solutions For Utilizing Big Data In The Maritime Industry, Sadaharu Koga

World Maritime University Dissertations

The dissertation is a study of big data for the use in the maritime industry. Today’s society is information-intensive. The term “big data” is becoming more common. In fact, some maritime companies and institutions have already been trying to utilize big data for enhancing maritime safety and environmental protection. In order to promote this trend, the dissertation tries to identify common and important challenges for the whole maritime industry in terms of the utilization of big data and propose corresponding solutions. First, by reviewing the definitions of big data, three major features are identified. Big data takes electronic form, is …