The Application Of Sensors On Guardrails For The Purpose Of Real Time Impact Detection,
2012
Air Force Institute of Technology
The Application Of Sensors On Guardrails For The Purpose Of Real Time Impact Detection, Matthew D. Sturtevant
Theses and Dissertations
The United States roadway system has deteriorated over time due to its age, increasing delays in completing preventative maintenance, and the lack of timely repairs following damage to the infrastructure. Proper asset management drives the need for generalized methods to integrate new sensing capabilities into existing Intelligent Transportation Systems in a time efficient and cost effective manner. In this thesis, we present a methodology for the deployment of new sensors into an existing ITS system. The proposed methodology employs a three phase approach that incorporates data modeling, spatial analysis in Geographic Information Systems, and cost optimization to provide enhanced decision …
Phase Ii Development Of A Non-Proprietary, Four-Cable, High Tension Median Barrier,
2012
University of Nebraska-Lincoln
Phase Ii Development Of A Non-Proprietary, Four-Cable, High Tension Median Barrier, Jennifer D. Schmidt, Dean L. Sicking, Ronald K. Faller, Karla A. Lechtenberg, Robert W. Bielenberg, Scott K. Rosenbaugh, John D. Reid
Nebraska Department of Transportation: Research Reports
No abstract provided.
Developing And Implementing Strategies To Address “Freddie Freeroader”,
2012
University of Kentucky
Developing And Implementing Strategies To Address “Freddie Freeroader”, David Q. Hunsucker, Mark S. Spellman, Mark Bell
Kentucky Transportation Center Research Report
Although the majority Kentucky’s citizens pay their fair share of motor vehicle registration taxes, there are indications that a number of citizens evade motor vehicle property and usage tax through a variety of means. Some individuals license their cars in states that have no, or very low, property taxes on motor vehicles; others abuse the use of temporary tags, or simply fail to renew the registration on their vehicles. As a result, Kentucky is losing income that would be used to repair the state’s roadways and fund local services such as schools, libraries, health departments, and police and fire services. …
Determination Of The Maximum Mgs Mounting Height -- Phase I Crash Testing,
2012
University of Nebraska-Lincoln
Determination Of The Maximum Mgs Mounting Height -- Phase I Crash Testing, Cale J. Stolle, Karla A. Lechtenberg, Ronald K. Faller, Robert W. Bielenberg, Scott Rosenbaugh, Dean L. Sicking, John D. Reid, Erin A. Johnson
Nebraska Department of Transportation: Research Reports
No abstract provided.
Customer Relationship Management And Firm Performance: An Empirical Study Of Freight Forwarder Services,
2012
Department of Transportation Science, National Taiwan Ocean University, Taiwan, R.O.C
Customer Relationship Management And Firm Performance: An Empirical Study Of Freight Forwarder Services, Kuo-Chung Shang, Chin-Shan Lu
Journal of Marine Science and Technology–Taiwan
This study empirically identifies customer relationship management (CRM) and examines its impacts on firm performance in the context of freight forwarder services. Using data collected from a survey of 144 freight forwarding firms in Taiwan, a structural equation modeling exercise was conducted to identify crucial CRM dimensions and their influences on the perceived financial performance. Results indicated that CRM dimensions such as customer response and profit interaction are found to have significantly positive effects on the perceived financial performance aspects of profit and growth rate. This research not only investigates crucial CRM but also proposes a model for empirical studies …
Fuzzy Decision On Optimal Collision Avoidance Measures For Ships In Vessel Traffic Service,
2012
Department of Electrical Engineering, National Taiwan Ocean University, Keelung, Taiwan, R.O.C
Fuzzy Decision On Optimal Collision Avoidance Measures For Ships In Vessel Traffic Service, Chien-Min Su, Ki-Yin Chang, Chih-Yung Cheng
Journal of Marine Science and Technology–Taiwan
This article proposes a new collision avoidance decision method for ships, allowing ships at risk of collision to take timely collision avoidance measures to ensure safe passage. Through vessel traffic service (VTS) collision alert system, an analysis can be made for the probability of a ship collision and an early warning can be issued. For ships in potential collision danger, the proposed method will use Microsoft Visual Studio to establish a knowledge base of international regulations for preventing collisions at sea. Thus, based on an analysis of the situation when encountering other ships, the knowledge base will suggest an appropriate …
Phase I Development Of An Aesthetic, Precast Concrete Bridge Rail,
2012
University of Nebraska - Lincoln
Phase I Development Of An Aesthetic, Precast Concrete Bridge Rail, Scott Rosenbaugh, Ronald K. Faller, Robert W. Bielenberg, Dean L. Sicking, John D. Reid
Nebraska Department of Transportation: Research Reports
No abstract provided.
Railroad Subgrade Support And Performance Indicators: A Review Of Available Laboratory And In-Situ Testing Methods,
2012
University of Kentucky
Railroad Subgrade Support And Performance Indicators: A Review Of Available Laboratory And In-Situ Testing Methods, Michael T. Mchenry, Jerry G. Rose
Kentucky Transportation Center Research Report
The quality and support of the subgrade portion of a railroad trackbed are vital to the overall performance of the track structure. The subgrade is an integral component of the track structure and its performance properties must be considered in order to effectively assess its influence on subsequent track quality. European and Asian railways are particularly advanced in implementing subgrade performance indicators into their track designs and assessments. As train speed and tonnage increase in the U.S., the evaluation and influence of subgrade performance will become even more paramount. There are numerous means of measuring and predicting subgrade performance. Both …
Sustainable Transportation At The University Of Central Florida: Evaluation Of Ucf Rideshare Program, Zimride,
2012
University of Central Florida
Sustainable Transportation At The University Of Central Florida: Evaluation Of Ucf Rideshare Program, Zimride, Joseph Patrick Defrancisco
Electronic Theses and Dissertations
As the second-largest university in the United States, UCF has experienced the largest enrollment in its history. A more densely populated campus has in turn caused increased traffic congestion. Despite increased parking permit fees and newly constructed parking garages, traveling and parking on campus is unpredictable. In effort to reduce congestion on campus, a rideshare program was implemented in Summer 2010. Several universities across the nation have successfully used carpooling as a viable alternative mode to manage traffic and parking demand. This thesis evaluates the UCF rideshare program, Zimride, using stated- and revealed-preference surveys. Preliminary results indicate most students prefer …
A Comprehensive Severity Analysis Of Large Vehicle Crashes,
2012
University of Central Florida
A Comprehensive Severity Analysis Of Large Vehicle Crashes, Haluk Laman
Electronic Theses and Dissertations
The goal of this thesis is to determine the contributing factors affecting severe traffic crashes (severe: incapacitating and fatal - non-severe: no injury, possible injury, and non-incapacitating), and in particular those factors influencing crashes involving large vehicles (heavy trucks, truck tractors, RVs, and buses). Florida Department of Highway Safety and Motor Vehicles (DHSMV) crash reports of 2008 have been used. The data included 352 fatalities and 9,838 injuries due to large vehicle crashes. Using the crashes involving large vehicles, a model comparison between binary logit model and a Chi-squared Automatic Interaction Detection (CHAID) decision tree model is provided. There were …
Development Of Performance Measures And Revenue Projections For State Highway Transportation Systems,
2012
University of Kentucky
Development Of Performance Measures And Revenue Projections For State Highway Transportation Systems, Dwight V. Denison, Christopher Jepsen, Bryan Gibson, Candice Wallace, Doug Kreis
Kentucky Transportation Center Research Report
The purpose of this report is to develop a pilot model that demonstrates how metrics can be identified and reported in a “dashboard” format to be used to monitor the progress of a transportation system in efficiently meeting established priorities. An additional component of this research is to examine the revenue implications of a shift away from the traditional funding mechanism on the financial viability of state transportation systems.
Kentucky Traffic Collision Facts 2012 Report,
2012
University of Kentucky
Kentucky Traffic Collision Facts 2012 Report, Kentucky Transportation Center, Kentucky State Police
Kentucky Transportation Center Research Report
KENTUCKY’S TRAFFIC COLLISION FACTS report for 2012 is based on collision reports submitted to the Kentucky State Police Records Branch. As required by Kentucky Revised Statutes 189.635, “every law enforcement agency whose officers investigate a vehicle accident of which a report must be made...shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau.” The stated purpose of this requirement is to utilize data on traffic collisions for such purposes as will improve the traffic safety program in the Commonwealth. Data contained in this report are based solely on the observations …
Project-Risk Management And Decision Analysis In Maritime Maintenance And Repair,
2012
Old Dominion University
Project-Risk Management And Decision Analysis In Maritime Maintenance And Repair, Michael C. Plumb, C. Ariel Pinto, Rafael Landaeta, Resit Unal, Thomas Murphy
Engineering Management & Systems Engineering Faculty Publications
The purpose of this paper is to provide insights regarding the implementation of using Project Risk Management (PRM) and Decision Analysis (DA) in managing projects for complex systems such as maritime vessels. The PRM approach apprehends many forms of risk both internal and external within a given project and assists the manager in determining the level of importance of each individual project phase and component to optimize project success. Ship Maintenance and Repair project decision-making requires that risk management and risk analysis techniques be applied in order to guide management in making better decisions to meet ship service life perspective. …
Distribution Analysis Of Freight Transportation With Gravity Model And Genetic Algorithm,
2012
Old Dominion University
Distribution Analysis Of Freight Transportation With Gravity Model And Genetic Algorithm, Jun Duanmu, Peter Foytik, Asad Khattak, R. Michael Robinson
VMASC Publications
The application of a gravity model in freight modeling work on both short-haul and long-haul trips is discussed. A commodity-based gravity model was developed to assess the distribution of freight by long-haul trucks in southeastern Virginia. Although gravity models have been used extensively in transportation studies, little work has been done to address the special characteristics of freight transportation, such as the definition of friction factors and the differences between long-haul and short-haul trips. Results of a recent study of these and similar problems provide valuable insight into freight distribution modeling. A new calibration method that used a genetic algorithm …
Impact Of Intercity Tolls In Portugal – An Environmental Perspective,
2012
Old Dominion University
Impact Of Intercity Tolls In Portugal – An Environmental Perspective, Jorge Bandeira, Margarida Coelho, Miguel Pimentel, Asad Khattak
Civil & Environmental Engineering Faculty Publications
Alternative road pricing schemes are promising strategies to alleviate congestion and other environmental problems related to urban and regional road transportation. However, in practice, environmental issues are not often taken into account, especially at regional level. In 2010, due to the financial crisis in Portugal, several tolls were introduced in some motorways that were previously financed by the government. One of these cases was the A29 motorway, which connects the cities of Aveiro and Oporto. After the introduction of tolls about 50% of the Average Daily Traffic shifted to alternative routes or modes. This paper discusses the impact that tolls …
Evacuee Route Choice Decisions In A Dynamic Hurricane Evacuation Context,
2012
Old Dominion University
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 …
Evaluation Of Ice-Melting Capacities Of Deicing Chemicals,
2012
Nebraska Dept. of Roads
Evaluation Of Ice-Melting Capacities Of Deicing Chemicals, B. M. Gerbino-Bevins, Christopher Y. Tuan, M. Mattison
Department of Civil and Environmental Engineering: Faculty Publications
Common deicing chemicals include sodium chloride, magnesium chloride, calcium chloride, calcium magnesium acetate, potassium acetate, potassium formate, and corn or beet-based deicer solution. Liquid deicers are commonly used for pre-wetting road salt, sand or other solid deicers, or mixed with salt brine as liquid deicer. Although manufacturers provide performance data under specific conditions, a standardized test is very much needed. Samples of sodium chloride, magnesium chloride, calcium chloride, potassium acetate, and beet juice-based chemical deicers were selected for performance evaluation. The SHRP Ice-Melting Capacity Test has been used in many research projects, but the results do not always correlate well …
Climate Change Impact Assessment For Surface Transportation In The Pacific Northwest And Alaska,
2012
Portland State University
Climate Change Impact Assessment For Surface Transportation In The Pacific Northwest And Alaska, John Macarthur, Philip Mote, Miguel A. Figliozzi, Jason Ideker, Ming Lee
Civil and Environmental Engineering Faculty Publications and Presentations
The states in the Pacific Northwest and Alaska region share interconnected transportation networks for people, goods, and services that support the regional economy, mobility, and human safety. Regional weather has and will continue to affect the physical condition and serviceability of these networks, yet the nature of climate changes and their potential impacts on the regional transportation system and its use are very poorly understood. The world’s leading climate scientists, such as the Intergovernmental Panel for Climate Change, have reached consensus that global climate changes are being observed and will continue into the future, particularly increasing temperatures. Given this fact, …
Phase I Development Of A Non-Proprietary, Four-Cable, High Tension Median Barrier,
2011
University of Nebraska-Lincoln
Phase I Development Of A Non-Proprietary, Four-Cable, High Tension Median Barrier, Mitchell J. Wiebelhaus, Dean L. Sicking, Ronald K. Faller, Karla A. Lechtenberg, John R. Rohde, Robert W. Bielenberg, Scott Rosenbaugh, Erin A. Johnson, John D. Reid
Nebraska Department of Transportation: Research Reports
No abstract provided.
Influence Of Recycled Asphalt Shingles On Asphalt Binder Content, Mixture Stiffness, And Laboratory Rutting Performance,
2011
University of Arkansas, Fayetteville
Influence Of Recycled Asphalt Shingles On Asphalt Binder Content, Mixture Stiffness, And Laboratory Rutting Performance, Joshua David King
Graduate Theses and Dissertations
Recycled asphalt shingles (RAS) is a technology in which pavement costs can be reduced significantly and pavement properties may be enhanced. Also, incorporating shingles into pavements reduces the impacts of waste shingles in landfills, preserving our environment. However, for this new technology to be practical for implementation, a better understanding of how the ground shingles affect the properties of the asphalt is necessary. The purpose of this research was to examine the effects of recycled asphalt shingles on asphalt binder content, mixture stiffness, and laboratory rutting performance. For this project, shingles were added to hot mix asphalt mixtures at 2.5, …
