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Prestress Losses And Temperature Effects On A Deck Bulb Tee Girder Bridge, Phillip Powelson 2017 Utah State University

Prestress Losses And Temperature Effects On A Deck Bulb Tee Girder Bridge, Phillip Powelson

All Graduate Theses and Dissertations

The Utah Transportation Center (UTC), in partnership with the Mountain Plains Consortium (MPC), sponsored a study to investigate the differences in prestress losses and temperature gradients in a concrete deck bulb tee girder bridge. The Millville Bridge was built as an access point to the Ridgeline High School in Millville, Utah. The bridge was built in 2016 and presently supports two lanes of traffic.

Changes in prestress were measured with a total of 16 vibrating wire strain gauges located at four cross-sections. Temperature gradients were measured with a total of 50 thermocouples located at five cross-section locations, four of which ...


Statistical Models Of I-15 Bridge C-846: Changes In Natural Frequencies Due To Temperature, Gilbert Nichols 2017 Utah State University

Statistical Models Of I-15 Bridge C-846: Changes In Natural Frequencies Due To Temperature, Gilbert Nichols

All Graduate Theses and Dissertations

Structural Health monitoring is to determine the condition of a bridge based on instrument measurements. The C-846 Bridge in Salt Lake City has such instrumentation. The bridge is located in Salt Lake City at about 2100 South and Interstate 15. This bridge has two kinds of instruments on it: accelerometers and thermocouples. The accelerometers measure the vibrations of the bridge. The accelerometers have been recording data on the bridge since 2001. The thermocouples, which measure temperature, were added as part of this thesis in April 2016.

In light of recent research, damage may be detected from measuring the change in ...


A New Market Segmentation Approach: Evidence From Two Canadian Cities, Dea van Lierop, Ahmed El-Geneidy 2017 McGill University

A New Market Segmentation Approach: Evidence From Two Canadian Cities, Dea Van Lierop, Ahmed El-Geneidy

Journal of Public Transportation

Traditionally, transit market research has categorized passengers into two distinct groups: captive riders and choice riders. Market analyses that depend on such broad categories are likely to overlook important details about the needs and desires of their customer base. This study attempts to better understand the complexities of the different groups who take transit by using information from five years of customer satisfaction questionnaires collected by two Canadian transit providers. Employing a series of clustering techniques, the analysis reveals that nine market segments are present across different modes in both transit agencies. Three different overarching groups of transit users are ...


Identifying Key Factors Of Rail Transit Service Quality: An Empirical Analysis For Istanbul, Erkan Isikli, Nezir Aydin, Erkan Celik, Alev Taskin Gumus 2017 Istanbul Technical University

Identifying Key Factors Of Rail Transit Service Quality: An Empirical Analysis For Istanbul, Erkan Isikli, Nezir Aydin, Erkan Celik, Alev Taskin Gumus

Journal of Public Transportation

Providing a high quality of service in public transportation is essential to reduce dissatisfactions stemming from traffic congestion and noise. Public transport providers need to find ways to dilute the effects of immoderate use of private cars in big cities while maintaining a sufficient level of customer satisfaction. This study aimed to identify the key service quality (SQ) factors that drive passenger satisfaction in Istanbul’s rail transit (RT) system using data obtained from an extensive survey conducted by the Istanbul Public Transportation Co. A total of 11,116 passengers who used rail transport from May 15–June 3, 2012 ...


Impact Of Different Bus Stop Designs On Bus Operating Time Components, Xiaodong Liu, Yao Yang, Meng Meng, Andreas Rau 2017 TUM CREATE Ltd.

Impact Of Different Bus Stop Designs On Bus Operating Time Components, Xiaodong Liu, Yao Yang, Meng Meng, Andreas Rau

Journal of Public Transportation

The design of bus stops significantly affects bus operation. The delay time caused by inappropriate bus stop design adversely influences the efficiency of the system. This paper aims to examine the influence of bus stops on bus operating time components through statistical analysis, using Singapore as a case study. Two common types of bus stops, bus bay and curb-side stop, were investigated during the field survey to obtain actual data of bus operation at stops. Sixteen stops were chosen in pairs to compare the differences in operating time at bus stops. Bus operating times, including acceleration time, dwell time, deceleration ...


A Framework For Measuring The Spatial Equity In The Distribution Of Public Transportation Benefits, Seyyed Amir Hosein Mortazavi, Meisam Akbarzadeh 2017 Isfahan University of Technology

A Framework For Measuring The Spatial Equity In The Distribution Of Public Transportation Benefits, Seyyed Amir Hosein Mortazavi, Meisam Akbarzadeh

Journal of Public Transportation

This paper proposes that an equitable transit system requires that the geographical distribution of transit service benefits conform to the geographical distribution of the citizens with the greatest need for public transportation. This is the essence of vertical equity. This study calculated “connectivity power,” which reflects public transit service quality in each traffic analysis zone (TAZ) in a city to indicate the amount of benefit that TAZ is receiving from the transit system. The number of carless citizens in each TAZ was also calculated as an index of need to the public transit services in that area. Conformity of need ...


Geopolymer Applications And Material Specifications In Railway Industry, Sakdirat Kaewunruen 2017 University of Birmingham

Geopolymer Applications And Material Specifications In Railway Industry, Sakdirat Kaewunruen

Sakdirat Kaewunruen

Geopolymer has been developed in the past decades and its applications in civil infrastructures start to gain popularity by replacing high-carbon concrete materials with the greener material. However, the application and uses of geopolymer concrete in railway industry are not common. It is because the material design and mixture did not fully accommodate the sub-system and systemic requirements for rail operations and maintenance. In this presentation, the emphasis is placed on the promising solutions to solve the sustainability issue and applicability for geopolymer concrete in railway environments. The review of railway infrastructures and their design and operational requirements are highlighted ...


Danger Below: Socal’S Dams Face Same Risks As Oroville, Char Miller, Frank Connor Lyles '17 2017 Pomona College

Danger Below: Socal’S Dams Face Same Risks As Oroville, Char Miller, Frank Connor Lyles '17

Pomona Faculty Publications and Research

No abstract provided.


Sustainable And Self-Sensing Concrete, Sakdirat Kaewunruen, Maaninder Singh, Ange-Therese Akono, Tetsuya Ishida 2017 University of Birmingham

Sustainable And Self-Sensing Concrete, Sakdirat Kaewunruen, Maaninder Singh, Ange-Therese Akono, Tetsuya Ishida

Sakdirat Kaewunruen

The majority of civil infrastructure is constructed using concrete materials and currently concrete production is at all time high resulting in significant carbon dioxide emissions. Furthermore, concrete structures have low tensile strength and low ductility increasing the risk of failure. Therefore concrete is currently neither environmentally nor economically sustainable. In this study, the experimental investigation has been highly promising in identifying a solution to solve the sustainability issue regarding concrete. Our critical literature showed that there have been successful in identifying the most optimum solution to solve the issue of carbon dioxide emissions related to concrete production but concrete structures ...


Evaluation Of A Supervisor Training Program For Odot’S Ecodrive Program, Donald M. Truxillo, John MacArthur, Leslie B. Hammer, Talya N. Bauer 2017 Portland State University

Evaluation Of A Supervisor Training Program For Odot’S Ecodrive Program, Donald M. Truxillo, John Macarthur, Leslie B. Hammer, Talya N. Bauer

Talya N. Bauer

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 ...


Integrated Assessment Of Novel Two-Season Production Systems In Mato Grosso, Brazil, Marcelo Moraes, Affonso Libera, Evgeny Latynskiy, Anna Hampf, José Maria Silveira, Thomas Berger 2017 Universität Hohenheim

Integrated Assessment Of Novel Two-Season Production Systems In Mato Grosso, Brazil, Marcelo Moraes, Affonso Libera, Evgeny Latynskiy, Anna Hampf, José Maria Silveira, Thomas Berger

Marcelo Carauta

One of the most significant advantages of growing crops in Mato Grosso (in mid-western Brazil) is that farmers can grow two crops (in some specific cases even three) in the same season. From an economic point of view, on the one hand, this provides a strong comparative advantage. On the other hand, this increases the number of decision variables that a decision making agent has to take into account. The agricultural production planning is complex and dynamic and it needs to consider crop rotation/succession in accordance with annual variability of climatic conditions. We developed a region-specific bio-economic micro-simulation model ...


Bicp Global Bim Study - Lessons For Ireland’S Bim Programme, Barry McAuley, Alan Hore, Roger West 2017 Dublin Institute of Technology

Bicp Global Bim Study - Lessons For Ireland’S Bim Programme, Barry Mcauley, Alan Hore, Roger West

Reports

The Construction IT Alliance (CitA) has been promoting the benefits of digitisation in the construction and engineering industry in Ireland since its formation back in 2002. Whilst the Alliance has always strived to ensure that its members are exposed to a wide spectrum of contemporary digital tools and processes, the concept of Building Information Modelling (BIM) has dominated the focus of its activities over the past five years.

BIM can be described as a digital tool that facilitates everybody to better understand a building or structure through the use of a digital model which draws on a range of data ...


Road Zipper™, Purdue ECT Team 2017 Construction Engineering & Management, Purdue University

Road Zipper™, Purdue Ect Team

ECT Fact Sheets

Construction work zones are growing in number around the world. The natural aging of existing roadway infrastructure ensures that more and more maintenance and rehabilitation will be required. Work zones, by their very definition, create two major problems that must be addressed in some way: safety and mobility. In the United States, highway work zones are responsible for almost 25% of all non-recurring congestion and 10% of overall congestion. Vehicle accidents are more common in work zones, and traffic congestion through work zones on urban arterials and freeways is often considered to be “unavoidable." To address these issues, ROAD ZIPPER ...


2017 Wheel Tax & Excise Surtax Report, Indiana LTAP 2017 Purdue University

2017 Wheel Tax & Excise Surtax Report, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

This report contains an overview of the details of the wheel tax and excise surtax, a summary of the recent changes to the Indiana Code regarding the taxes, revenue estimates for both counties and municipalities, an estimate of revenue projected out to 2018, as well as some commonly asked questions and their answers.


Kentucky Vehicle License Plate Study, Valerie J. Keathley, Andrew Martin, Jerry Kissick, Gray Forlines, Jennifer R. Walton 2017 University of Kentucky

Kentucky Vehicle License Plate Study, Valerie J. Keathley, Andrew Martin, Jerry Kissick, Gray Forlines, Jennifer R. Walton

Kentucky Transportation Center Research Report

This study assesses Kentucky’s options for potentially re-plating all motor vehicles registered in the Commonwealth. The report begins with a background and discussion of Kentucky’s plate production processes, the difference between flat and embossed plates, and the structure of license plate labor at the Kentucky State Reformatory in La Grange. It details current plate production costs and processes, along with fees and production numbers. It evaluates three scenarios for future plate production: flat plate production, a hybrid system with embossed general issue plates and flat specialty plates, and an embossed plate system with in-house printed sheeting. Also included ...


Develop A Highway Inventory Data Quality Control Scheme (Pl-26), Mei Chen, Obaidur Rahman Kazi, Tony Fields 2017 University of Kentucky

Develop A Highway Inventory Data Quality Control Scheme (Pl-26), Mei Chen, Obaidur Rahman Kazi, Tony Fields

Kentucky Transportation Center Research Report

Since passage of the Moving Ahead for Progress in the 21st Century (MAP-21), transportation agencies have become increasingly reliant on data for planning and programming, asset management, and performance tracking. An efficient asset inventory database with accurate data is critical for states to comply with MAP-21 (and now FAST Act) requirements.

The Kentucky Transportation Cabinet’s (KYTC) Division of Planning maintains the Highway Information System (HIS), which is a primary source of this information for transportation professionals at the Cabinet (KYTC). Because highway system is continually changing, it is a challenging task to keep the information in the HIS up ...


Value Landscape Engineering: Identifying Costs, Water Use, Labor, And Impacts To Support Landscape Choice., Kelly Kopp, Larry Rupp, Paul G. Johnson, Roger K. Kjelgren, David E. Rosenberg, Heidi Kratsch 2017 Utah State University

Value Landscape Engineering: Identifying Costs, Water Use, Labor, And Impacts To Support Landscape Choice., Kelly Kopp, Larry Rupp, Paul G. Johnson, Roger K. Kjelgren, David E. Rosenberg, Heidi Kratsch

Larry Rupp

We present a spreadsheet model that identifies the costs, water, labor, fertilizer, pesticides, fuel, energy, carbon emissions, and particulates required of and generated by a user-specified residential or commercial landscape over its economic life. This life includes site preparation, materials purchase, installation, annual maintenance and replacing landscape features that wear out or die. Users provide a variety of site-descriptive information and the model queries an extensive database of landscape data to calculate costs, required inputs, and impacts. We verified model results against observations of water, labor, fertilizer, and fuel use over eight years at three landscapes in the Salt Lake ...


Estimating Reliability Indices And Confidence Intervals For Transit And Traffic At The Corridor Level, Travis B. Glick 2017 Portland State University

Estimating Reliability Indices And Confidence Intervals For Transit And Traffic At The Corridor Level, Travis B. Glick

TREC Friday Seminar Series

As congestion worsens, the importance of rigorous methodologies to estimate travel-time reliability increases. Exploiting fine-granularity transit GPS data, this research proposes a novel method to estimate travel-time percentiles and confidence intervals. Novel transit reliability measures based on travel-time percentiles are proposed to identify and rank low-performance hotspots; the proposed reliability measures can be utilized to distinguish peak-hour low performance from whole-day low performance. As a case study, the methodology is applied to a bus transit corridor in Portland, Oregon. Time-space speed profiles, heatmaps, and visualizations are employed to highlight sections and intersections with high travel-time variability and transit low performance ...


Current Efforts To Make Bike Share More Equitable: A Survey Of System Owners And Operators, Steven Howland 2017 Portland State University

Current Efforts To Make Bike Share More Equitable: A Survey Of System Owners And Operators, Steven Howland

TREC Friday Seminar Series

The number of public bike share systems has been increasing rapidly across the United States over the past five to ten years. To date most academic research around bike share in the U.S. has focused on the logistics of planning and operationalizing successful systems. Investigations of system users and impacts on the local community are less common, and studies focused on efforts to engage underserved communities in bike share are rarer still. This paper utilizes a survey of representatives from 55 U.S. bike share systems to better understand and document current approaches toward serving low income and minority ...


Webinar: Improving Walkability At Signalized Intersections With Signal Control Strategies, Edward J. Smaglik, Sirisha Murthy Kothuri 2017 Northern Arizona University

Webinar: Improving Walkability At Signalized Intersections With Signal Control Strategies, Edward J. Smaglik, Sirisha Murthy Kothuri

TREC Webinar Series

The goal of signal timing at an intersection should be to maximize efficiency for all users. In many jurisdictions, however, traffic signals are timed mostly with the goal of reducing vehicular delay.

Other road users, such as pedestrians, deserve similar focus. In legacy transportation systems, pedestrians experience delays much in excess of those that would be deemed acceptable for a motor vehicle at the same location.

Excessive delay can lead to pedestrian frustration, non-compliance and ultimately decreased safety.

In the North American context, implementation of strategies to address pedestrian service varies greatly across jurisdictions, and there has been limited research ...


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