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2018

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Articles 451 - 480 of 1622

Full-Text Articles in Civil and Environmental Engineering

Mech 320-101: Statics And Mechanics Of Materials, Joseph Baladi Sep 2018

Mech 320-101: Statics And Mechanics Of Materials, Joseph Baladi

Civil and Environmental Engineering Syllabi

No abstract provided.


Ce 333-001-003: Reinforced Concrete Design, M Ala Saadeghvaziri Sep 2018

Ce 333-001-003: Reinforced Concrete Design, M Ala Saadeghvaziri

Civil and Environmental Engineering Syllabi

No abstract provided.


Mech 234-001-003: Engineering Mechanics: Statics, G Milano Sep 2018

Mech 234-001-003: Engineering Mechanics: Statics, G Milano

Civil and Environmental Engineering Syllabi

No abstract provided.


Ce 332-001: Structural Analysis, Eduardo Castro Sep 2018

Ce 332-001: Structural Analysis, Eduardo Castro

Civil and Environmental Engineering Syllabi

No abstract provided.


Ce 200a - Surveying Lab, Allison Lapatka Sep 2018

Ce 200a - Surveying Lab, Allison Lapatka

Civil and Environmental Engineering Syllabi

No abstract provided.


Ce 360-001: Sustainable Civil Engineering Materials, Matthew Adams Sep 2018

Ce 360-001: Sustainable Civil Engineering Materials, Matthew Adams

Civil and Environmental Engineering Syllabi

No abstract provided.


Sociodemographics And Access To Organic And Local Food: A Case Study Of New Orleans, Louisiana, Chuo Li, Amir Ghiasi, Xiaopeng Li, Guangqing Chi Sep 2018

Sociodemographics And Access To Organic And Local Food: A Case Study Of New Orleans, Louisiana, Chuo Li, Amir Ghiasi, Xiaopeng Li, Guangqing Chi

Civil and Environmental Engineering Faculty Publications

This study examined the association between physical accessibility to organic and local food, and sociodemographic factors in New Orleans, Louisiana. Spatial regression models were used to investigate how sociodemographic variables such as income, race/ethnicity, education, and age correlate with driving, bicycling, and walking distances to stores that sell organic or local food. The distances were calculated from GIS and real-time speed information from Google Maps. The results indicated that physical access to such stores is positively associated with population density, median housing value, education, non-Hispanic Blacks, and Hispanics, and is negatively associated with median housing age. We found no disparities …


Waterproofing Options For Bridge Decks, Danny Wells, Sudhir Palle, Theodore Hopwood Ii Sep 2018

Waterproofing Options For Bridge Decks, Danny Wells, Sudhir Palle, Theodore Hopwood Ii

Kentucky Transportation Center Research Report

Due to the increasing use of deicing chemicals and the subsequent intrusion of chlorides into bridge decks, it is necessary to expand the use of available protective measures, including waterproofing materials. Waterproofing options that fall into three categories; 1) membranes (liquid and sheet systems), 2) friction polymers (laminates), and 3) polymer asphalts. This study assessed the waterproofing characteristics of these products. Prior to this study, no common test had been established to compare the performance of waterproofing products. A test method was developed that closely follows ASTM D5084, “Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials …


Data From: Market Segment Prediction Tool, Philip L. Winters, Amy Lester Sep 2018

Data From: Market Segment Prediction Tool, Philip L. Winters, Amy Lester

TREC Datasets and Databases

Social marketing seeks to develop and integrate marketing concepts with other approaches to influence behaviors that benefit individuals and communities for the greater social good. Social marketing is a useful transportation demand management (TDM) planning approach to promote travel-behavior change, and combines at least seven distinguishing features that sets it apart from other popular, behavior-change planning approaches, such as education and mass media campaigns. These seven features include a focus on socially beneficial behavior change; a strong consumer orientation; the use of audience segmentation techniques and the selection of target audiences; the use of marketing’s conceptual framework (marketing mix and …


What You Don’T See, Brent Sturlaugson Sep 2018

What You Don’T See, Brent Sturlaugson

Architecture Faculty Publications

Follow the supply chains of architecture and you’ll find not just product manufacturers but also environmental polluters and elusive networks of financial power and political influence.


Advancing Bridge Technology, Task 10: Statistical Analysis And Modeling Of Us Concrete Highway Bridge Deck Performance -- Internal Final Report, Omar Ghonima, Thomas Schumacher, Avinash Unnikrishnan, Adam Fleischhacker Sep 2018

Advancing Bridge Technology, Task 10: Statistical Analysis And Modeling Of Us Concrete Highway Bridge Deck Performance -- Internal Final Report, Omar Ghonima, Thomas Schumacher, Avinash Unnikrishnan, Adam Fleischhacker

Civil and Environmental Engineering Faculty Publications and Presentations

Concrete highway bridge deck repairs represent the highest expense associated with bridge maintenance cost. In order to optimize such activities and use the available monies effectively, a solid understanding of the parameters that affect the performance of concrete bridge decks is critical. The National Bridge Inventory (NBI), perhaps the single-most comprehensive source of bridge information, gathers data on more than 600,000 bridges in all fifty states, the District of Columbia, and the Commonwealth of Puerto Rico. Focusing on concrete highway bridge deck performance, this research developed a nationwide database based on NBI data and other critical parameters that were computed …


Internal Gravity Waves And Meso/Submesoscale Currents In The Ocean Anticipating High-Resolution Observations From The Swot Swath Altimeter Mission, Edward D. Zaron, Cesar B. Rocha Sep 2018

Internal Gravity Waves And Meso/Submesoscale Currents In The Ocean Anticipating High-Resolution Observations From The Swot Swath Altimeter Mission, Edward D. Zaron, Cesar B. Rocha

Civil and Environmental Engineering Faculty Publications and Presentations

The article offers information on the meeting “Interactions between Internal Gravity Waves and Meso/Submesoscale Currents in the Ocean," held in Portland, Oregon, on February 10-11, 2018. Topics discussed include the role played by geostationary satellites in atmospheric science, the result of interactions between high-frequency internal gravity waves and low-frequency mesoscale andsubmesoscale currents in the ocean, and kinetic energy spectrum of surface currents.


Development Of A Crash Risk-Scoring Tool For Pedestrian And Bicycle Projects In Oregon, Yi Wang, Christopher M. Monsere, Chen Chen, Haizhong Wang Sep 2018

Development Of A Crash Risk-Scoring Tool For Pedestrian And Bicycle Projects In Oregon, Yi Wang, Christopher M. Monsere, Chen Chen, Haizhong Wang

Civil and Environmental Engineering Faculty Publications and Presentations

Methods for identifying and prioritizing high-crash locations for safety improvements are generally crash-based. There are fewer reported crashes involving non-motorized users and, in most states, reported crashes must involve a motor vehicle. This means that minor, non-injury events are not reported and those crashes that are reported tend to be more severe. Selecting projects based only on crash performance is sometimes limiting for these crash types and predicting where these crashes will occur next is also a challenging task. An alternative to crash-based selection is to develop risk-based criteria and methods. This paper presents the results of a research effort …


Analysis Of Traffic Crash Data In Kentucky (2013-2017), Eric R. Green, Kenneth R. Agent, Jerry G. Pigman, Paul A. Ross Sep 2018

Analysis Of Traffic Crash Data In Kentucky (2013-2017), Eric R. Green, Kenneth R. Agent, Jerry G. Pigman, Paul A. Ross

Kentucky Transportation Center Research Report

Executive Summary

This report documents an analysis of traffic crash data in Kentucky for the years of 2013-2017. A primary objective of this study was to determine average crash statistics for Kentucky highways. Rates were calculated for various types of highways and for counties and cities. Difference criteria were used for exposure.

Average and critical numbers and rates of crashes were calculated for various types of highways in rural and urban areas. These rates used crashes identified on highways where traffic volumes were available. Improved methods of identifying crash locations have resulted in higher rates for the last couple of …


Development Of Domain Analysis For Determining Potential Pavement Damage, Angeli Gamez, Jaime Hernandez, Hasan Ozer, Imad L. Al-Qadi Sep 2018

Development Of Domain Analysis For Determining Potential Pavement Damage, Angeli Gamez, Jaime Hernandez, Hasan Ozer, Imad L. Al-Qadi

Civil and Environmental Engineering Faculty Research and Publications

A new approach for quantifying flexible pavement damage potential is proposed. The new method, domain analysis, utilizes multiaxial results from advanced finite element models to calculate the response of flexible pavements to tire loading. The output is a single scalar value, which is unique to a given pavement structure and loading configuration. The ability of the domain analysis to quantify bulk damage potential and overcome flaws of conventional approaches based on point responses is demonstrated by testing three case studies: (1) comparison of typical loading conditions of dual-tire assembly (DTA), new-generation wide-base tire (NG-WBT), and steer tire; (2) effect of …


Improvement Of Fatal Crash Analysis And Follow-Up, William Nicholas Staats, Jerry G. Pigman, Kenneth R. Agent, Paul A. Ross Sep 2018

Improvement Of Fatal Crash Analysis And Follow-Up, William Nicholas Staats, Jerry G. Pigman, Kenneth R. Agent, Paul A. Ross

Kentucky Transportation Center Research Report

Executive Summary

Fatalities resulting from traffic crashes in Kentucky increased from a low of 638 in 2013 to 834 in 2016 (a 31% increase), and there is not a full understanding of the underlying causes for this trend. This study analyzes fatal crashes using data from both Kentucky’s crash reports and the National Highway Traffic Safety Administration’s (NHTSA) Fatal Accident Reporting System (FARS) to identify countermeasures to combat increasing fatal crash rates. In addition, this study compares Kentucky’s crash reports to the fatal crash data in FARS to identify data inconsistencies and recommend procedures to eliminate these inconsistencies.

Emphasis was …


Treatment Of Acid Orange 74 Wastewater And Sugar Wastewater By Low Cost Adsorbents, S. H. Madiraju, Yung-Tse Hung, Howard H. Paul Sep 2018

Treatment Of Acid Orange 74 Wastewater And Sugar Wastewater By Low Cost Adsorbents, S. H. Madiraju, Yung-Tse Hung, Howard H. Paul

Civil and Environmental Engineering Faculty Publications

This study shows the treatment of combined binary mixture of Acid Orange 74 and sugar wastewater with peanut hull and orange peel as low-cost adsorbents. The performance of a combined adsorption-microfiltration process for the color removal is measured and compared using transmittance and absorbance indices at mechanical shaker mix level. This selected treatment procedure is among one of the most economical treatment alternatives to all technologies present now. The parameters studied during this research are analyzed using Langmuir and Freundlich isotherm models on low cost adsorbents. Conclusive results after the treatment are indicated in this paper at their optimum dosages …


Executive Summary_Governance For A Changing Climate: Adapting Boston’S Built Environment For Increased Flooding, Stephanie Kruel, Rebecca Herst, David Cash Sep 2018

Executive Summary_Governance For A Changing Climate: Adapting Boston’S Built Environment For Increased Flooding, Stephanie Kruel, Rebecca Herst, David Cash

Sustainable Solutions Lab

As the impacts of climate change intensify, coastal cities like Boston face increasing threats from sea level rise, extreme precipitation, and storm surges. This report, produced by the Sustainable Solutions Lab at the University of Massachusetts Boston, examines the role of governance in preparing Boston’s built environment for these evolving risks. Building upon the foundational work of the Climate Ready Boston initiative, the report outlines critical governance functions necessary for climate adaptation, including institutional coordination, regulatory reform, community engagement, and data-driven decision-making. Emphasizing a multiscalar governance approach, it analyzes the tools available at local, regional, state, and federal levels and …


Governance For A Changing Climate: Adapting Boston’S Built Environment For Increased Flooding, Stephanie Kruel, Rebecca Herst, David Cash Sep 2018

Governance For A Changing Climate: Adapting Boston’S Built Environment For Increased Flooding, Stephanie Kruel, Rebecca Herst, David Cash

Sustainable Solutions Lab

As the impacts of climate change intensify, coastal cities like Boston face increasing threats from sea level rise, extreme precipitation, and storm surges. This report, produced by the Sustainable Solutions Lab at the University of Massachusetts Boston, examines the role of governance in preparing Boston’s built environment for these evolving risks. Building upon the foundational work of the Climate Ready Boston initiative, the report outlines critical governance functions necessary for climate adaptation, including institutional coordination, regulatory reform, community engagement, and data-driven decision-making. Emphasizing a multiscalar governance approach, it analyzes the tools available at local, regional, state, and federal levels and …


Concrete Pavement Blowup Considering Generalized Boundary Conditions, Jaime Hernandez, Imad L. Al-Qadi Sep 2018

Concrete Pavement Blowup Considering Generalized Boundary Conditions, Jaime Hernandez, Imad L. Al-Qadi

Civil and Environmental Engineering Faculty Research and Publications

An analytical expression for static stability of a rectangular slab with two simply supported and two elastically restrained edges is presented. The linear elastic isotropic slab can represent a rigid pavement resting on an elastic foundation and loaded by a uniform in-plane axial load per unit length along the edges. The partially restrained edges are connected to the ground by translational and rotational elastic springs; an appropriate magnitude of the springs can capture classical boundary conditions such as free, simply supported, and clamped edges. Results from classical boundary conditions and a finite-element model were used to validate the proposed stability …


Bs News September/October Sep 2018

Bs News September/October

Building Services Engineering

No abstract provided.


Application And Usage Of Design-Build By State Dots, Dennis Bausman, Mashrur Chowdhury, Christopher Cummings, Sasi Selvan Sep 2018

Application And Usage Of Design-Build By State Dots, Dennis Bausman, Mashrur Chowdhury, Christopher Cummings, Sasi Selvan

The Professional Constructor

This study examines the usage of design-build by the Department of Transportation (DOT) of the 50 states in the United States. Design-build has been growing in popularity as a procurement form in both the private and public sectors, and in the last ten years many DOTs have started or expanded programs to use design-build for infrastructure projects. However, many DOTs are still struggling to determine the best application of design build and how to incorporate its use as a procurement method for DOT projects. This study examines how state DOTs are using design-build, when they are using this delivery method, …


Assessment Of Electrical Contractors’ Perception And Practices With Project Risk Management, Anthony J. Perrenoud Sep 2018

Assessment Of Electrical Contractors’ Perception And Practices With Project Risk Management, Anthony J. Perrenoud

The Professional Constructor

Project Risk Management is a critical construction management skillset for identifying risks, assessing risks, strategizing, and executing risk mitigation plans. Proactive risk management has been found to reduce negative impacts to project objectives and increase customer satisfaction. To improve project risk management contractors have a method of measuring perceptions and practices of risk management, also known as risk maturity. Previous research has identified a model for measuring five major attributes of risk maturity they are (1) management’s perspective of risk management; (2) organizational risk culture; (3) risk identification; (4) risk analysis; and, (5) standardized risk management process. This study presents …


Collaborative Risk Mitigation Through Construction Planning And Scheduling, Lane Kay Coble Sep 2018

Collaborative Risk Mitigation Through Construction Planning And Scheduling, Lane Kay Coble

The Professional Constructor

No abstract provided.


Construction Disputes In The United States And The United Kingdom: A Comparison, Anusree Saseendran, Ben F. Bigelow, Zofia Rybkowski, Dawn Jourdan Sep 2018

Construction Disputes In The United States And The United Kingdom: A Comparison, Anusree Saseendran, Ben F. Bigelow, Zofia Rybkowski, Dawn Jourdan

The Professional Constructor

Construction disputes are on the rise globally. They adversely affect the progress and quality of a construction project by resulting in cost overruns and delays. They are also time-consuming and expensive to resolve. Hence it is valuable to identify the most disputed topics in construction in the US and compare them to those in a different country. This helps better understand disputes, and the influence that culture and the difference in the nature of construction in the regions may have on disputes. This study was an attempt to identify and compare the most disputed topics in construction in the United …


Examining The Microeconomics Of Bid Difference Of Engineer & Contractor Bids In Highway Construction, Robert Ryan, Randy R. Rapp, Mark Shaurette, Sarah Hubbard Sep 2018

Examining The Microeconomics Of Bid Difference Of Engineer & Contractor Bids In Highway Construction, Robert Ryan, Randy R. Rapp, Mark Shaurette, Sarah Hubbard

The Professional Constructor

This study examines microeconomic factors that affect Bid Difference between the designer’s Engineer’s Estimate and the contractor’s Winning Bid. Historically, the accuracy of the Engineer’s Estimate and the Winning Bid vary. To account for this discrepancy, the Federal Highway Administration (FHWA) recommends a contingency be included in all Engineer’s Estimates. Statistical analysis was performed to determine if state Departments of Transportation (DOTs) were currently meeting the recommended Bid Difference values. Data was collected from California, North Carolina, and Ohio from 2012 through 2014. Statistical analysis indicates that current practices to develop an Engineer’s Estimate met the FHWA recommended values. With …


Designing A Modular Building: A Case Study For Modular Vs.Conventional Design For An Apartment Building, Christine Piper, Arun Thodupunoori Sep 2018

Designing A Modular Building: A Case Study For Modular Vs.Conventional Design For An Apartment Building, Christine Piper, Arun Thodupunoori

The Professional Constructor

To alleviate the diminishing number of tradespeople in the US construction industry, modular construction is an alternative construction process that could be used for repetitive construction applications. However, there are some misconceptions about modular construction including: limited architectural design options, design restrictions, lower quality, unaffordable and inability to design for sustainability. Modular construction is a process that streamlines the construction process and saves a significant amount of time while delivering a high quality building. In response to the misconception of design options, this case study presents the design considerations for transforming an apartment building that was designed and constructed using …


2018 Safety Belt Usage Survey In Kentucky, Erin Lammers-Staats, Kenneth R. Agent, Eric R. Green Sep 2018

2018 Safety Belt Usage Survey In Kentucky, Erin Lammers-Staats, Kenneth R. Agent, Eric R. Green

Kentucky Transportation Center Research Report

The objective of the survey summarized in this report was to establish a statewide safety belt usage rate in Kentucky for 2018. This rate can be compared to those determined from previous surveys. The 2018 statewide survey documents the continued increase in usage associated with the change in the law to allow primary enforcement and related education and enforcement.


Standardization Of Fatigue Characteristics Of Cement-Treated Aggregate Base Materials Under Different Stress States, Jiawei Xie, Limin Tang, Songtao Lv, Naitian Zhang, Tuo Huang, Hongfu Liu Sep 2018

Standardization Of Fatigue Characteristics Of Cement-Treated Aggregate Base Materials Under Different Stress States, Jiawei Xie, Limin Tang, Songtao Lv, Naitian Zhang, Tuo Huang, Hongfu Liu

Michigan Tech Publications, Part 1

In this study, to decrease the evaluation uncertainty of the fatigue characteristics of cement-treated aggregate base materials under different test conditions, unconfined compressive, indirect tensile, flexural tensile strength tests and fatigue tests of these base materials with different cement content and at different curing times were carried out. The Weibull distribution was employed to analyze fatigue test results. The standardization model of fatigue characteristics for cement-treated aggregate base materials under different stress states was established. Based on the interval analysis theory, the fatigue characteristic model under different stress states was established using interval parameters. Results revealed that the curing time …


16-01 Paths To Ada-Compliance: The Performance And Cost Efficiency Of Measurement Technologies That Support Ada-Mandated, Self-Evaluations Of Pedestrian Rights Of Way, Jun-Seok Oh, Jiansong Zhang, Kapseong Ro, Majid Mastali Aug 2018

16-01 Paths To Ada-Compliance: The Performance And Cost Efficiency Of Measurement Technologies That Support Ada-Mandated, Self-Evaluations Of Pedestrian Rights Of Way, Jun-Seok Oh, Jiansong Zhang, Kapseong Ro, Majid Mastali

Transportation Research Center Reports

This study used terrestrial laser scanner and open source processing algorithms to develop an approach to automate the evaluation of transportation infrastructure in public rights of way. We estimated compliance or noncompliance of specific roadway features with the design standards adopted by the US Access Board and required under the Americans with Disabilities Act (ADA) such as minimum sidewalk width, maximum cross slopes and presence/absence of pedestrian connectivity automatically with extracting roadway features from point cloud data (PCD). We then compared the accuracy and cost efficiency of the automated with more conventional evaluative techniques to identify the potential risks, gains …