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Articles 1 - 30 of 4000

Full-Text Articles in Engineering

Exploratory Spatial Data Analysis In Traffic Safety, Amin Azimian, Dimitra Pyrialakou May 2020

Exploratory Spatial Data Analysis In Traffic Safety, Amin Azimian, Dimitra Pyrialakou

International Journal of Geospatial and Environmental Research

This paper presents an exploratory spatial data analysis (ESDA) of road traffic crashes at different severity levels in West Virginia (WV). Although ESDA can support transportation safety decision-making by helping planners understand and summarize crash data, it is underutilized in practice. This paper describes the application of five representative easy-to-use method to identify crash patterns and high crash-risk counties in WV. Analysis of crash data from 2010 to 2015 indicated that traffic crashes in WV were not spatially correlated. However, crash severities were found to be positively correlated.

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Statistics And Artificial Intelligence-Based Pavement Performance And Remaining Service Life Prediction Models For Flexible And Composite Pavement Systems, Orhan Kaya, Halil Ceylan, Sunghwan Kim, Danny Waid, Brian P. Moore May 2020

Statistics And Artificial Intelligence-Based Pavement Performance And Remaining Service Life Prediction Models For Flexible And Composite Pavement Systems, Orhan Kaya, Halil Ceylan, Sunghwan Kim, Danny Waid, Brian P. Moore

Civil, Construction and Environmental Engineering Publications

In their pavement management decision-making processes, U.S. state highway agencies are required to develop performance-based approaches by the Moving Ahead for Progress in the 21st Century (MAP-21) federal transportation legislation. One of the performance-based approaches to facilitate pavement management decision-making processes is the use of remaining service life (RSL) models. In this study, a detailed step-by-step methodology for the development of pavement performance and RSL prediction models for flexible and composite (asphalt concrete [AC] over jointed plain concrete pavement [JPCP]) pavement systems in Iowa is described. To develop such RSL models, pavement performance models based on statistics and artificial ...

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2-D Non-Linear Finite Element Analysis Of Folsom Dam: Seismically Induced Separation And Pore Pressure Along The Soil-Concrete Interface, Grace Amoussou May 2020

2-D Non-Linear Finite Element Analysis Of Folsom Dam: Seismically Induced Separation And Pore Pressure Along The Soil-Concrete Interface, Grace Amoussou

Master of Science in Civil Engineering Theses

The seismic soil-concrete interface stability of composite dams has been an area of interest to many researchers. However, the true interface behavior during a seismic event has not been well understood. During a ground shaking, bonding and de-bonding action along the interface may cause significant separation of soil and concrete surfaces, and such a separation may take place at any depth along the interface creating a stability concern for the overall dam. Moreover, the repetitive nature of bonding/debonding behavior may induce excess pore pressure along the interface, which in turn, may trigger a liquefaction failure or a hydraulic fracture ...

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Faith Promise Lane: From Cherahala Boulevard To Tn-162 Mp 1.9, Zachary W. Jerome May 2020

Faith Promise Lane: From Cherahala Boulevard To Tn-162 Mp 1.9, Zachary W. Jerome

Chancellor’s Honors Program Projects

No abstract provided.

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Countermeasures For Pedestrian-Involved Accidents On Interstate-Highways, Anna C. Hunter May 2020

Countermeasures For Pedestrian-Involved Accidents On Interstate-Highways, Anna C. Hunter

Civil Engineering Undergraduate Honors Theses

Pedestrian access to the Interstate is prohibited, but many pedestrian-involved accidents still occur on the Interstate in the United States. This project is a case study of West Memphis, Arkansas, which has the second highest occurrence of pedestrian-involved accidents on the Interstate in Arkansas. The study site location includes a segment of Interstate I-40 which is at- grade. The surrounding area contains several different land-uses, which is believed to be the primary generator of these accidents. The goal of this project is to determine the primary causes of these accidents and determine potential countermeasures to reduce the crash rate for ...

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Understanding Workability In Belitic Calcium Sulfoaluminate Concrete Mixtures, Caleb W. Chesnut May 2020

Understanding Workability In Belitic Calcium Sulfoaluminate Concrete Mixtures, Caleb W. Chesnut

Civil Engineering Undergraduate Honors Theses

Belitic Calcium Sulfoaluminate cement (BCSA) is an emerging technology in the concrete industry. BCSA has similar hardened properties to portland cement (PC) but can set in under 20 minutes and reach 4,000 psi in less than 2 hours. Portland cement accounts for 8% of the world’s CO2 emissions, BCSA cements require less energy to produce. Studies have shown that 40% less CO2 is emitted during the production of BCSA cement than portland cement. This environmental benefit also makes it a very promising PC alternative. Before a new material can be used, designers need to understand the material’s ...

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Applying Performance Engineered Mixture Design To Permeable Concrete, Rachel Pohl May 2020

Applying Performance Engineered Mixture Design To Permeable Concrete, Rachel Pohl

Civil Engineering Undergraduate Honors Theses

The scope of research and application related to permeable pavements has recently broadened. The desire to significantly reduce the environmental impact of large paved areas makes the permeable pavement concept more desirable (American Concrete Institute, 2018). Although research and interest are increasing, the actual application of permeable pavement is still very limited and has not reached the airfield arena. In airfields, permeable pavement could possibly be used for aircraft aprons - which currently require substantial measures to control stormwater runoff. Permeable pavements are typically used in low-traffic-volume / lightly loaded applications; questions remain regarding a permeable pavement’s ability to hold the ...

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The Impact Of Pev User Charging Behavior In Building Public Charging Infrastructure, Ahmad Almaghrebi Apr 2020

The Impact Of Pev User Charging Behavior In Building Public Charging Infrastructure, Ahmad Almaghrebi

Architectural Engineering -- Dissertations and Student Research

Plug-in electric vehicles (PEVs) play a significant role in the development of green cities since they generate less pollution than conventional vehicles. To promote PEV adoption and mitigate range anxiety, charging infrastructure should be deployed at strategic locations that are readily accessible to the public. Nebraska is working on the expansion of charging infrastructure around the state; however, stakeholders face several difficulties in trying to minimize irregular charging behaviors. Most electric vehicle users plug in and leave their vehicles for an extended time at public parking lots designated for PEVs. Some users even leave their vehicles for longer than 24 ...

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Geosynthetic Interlayer Functions And I-65 Installation, Mark Marienfeld Apr 2020

Geosynthetic Interlayer Functions And I-65 Installation, Mark Marienfeld

Purdue Road School

INDOT recently used a geosynthetic paving fabric interlayer for the first time, on I-65, to retard reflective cracking and as a pavement moisture barrier. The nonwoven fabric interlayer used is both millable and recyclable. This technical presentation will provide insight into the use of paving fabric interlayer as a cost-effective, innovative tool for pavement rehabilitation.

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Evaluation Of Coordinated Ramp Metering (Crm) Implemented By Caltrans, Amir Molan, Nivedha Murugesan, Alireza Shams, Cristina Tortora, Faridur Rahman, Jacky Loh, Anurag Pande Apr 2020

Evaluation Of Coordinated Ramp Metering (Crm) Implemented By Caltrans, Amir Molan, Nivedha Murugesan, Alireza Shams, Cristina Tortora, Faridur Rahman, Jacky Loh, Anurag Pande

Mineta Transportation Institute Publications

Coordinated ramp metering (CRM) is a critical component of smart freeway corridors that rely on real-time traffic data from ramps and freeway mainline to improve decision-making by the motorists and Traffic Management Center (TMC) personnel. CRM uses an algorithm that considers real-time traffic volumes on freeway mainline and ramps and then adjusts the metering rates on the ramps accordingly for optimal flow along the entire corridor. Improving capacity through smart corridors is less costly and easier to deploy than freeway widening due to high costs associated with right-of-way acquisition and construction. Nevertheless, conversion to smart corridors still represents a sizable ...

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Social Justice Mitigation In Transportation Projects: Why And How Lexington Fayette Urban County Government Can Support The Lexington Community Land Trust’S Path To Self-Sustainability, Pamela Clay-Young, Steven Douglas Kreis Apr 2020

Social Justice Mitigation In Transportation Projects: Why And How Lexington Fayette Urban County Government Can Support The Lexington Community Land Trust’S Path To Self-Sustainability, Pamela Clay-Young, Steven Douglas Kreis

Kentucky Transportation Center Research Report

The city of Lexington has reached a critical shortage of affordable housing available to families earning 80% - 50% of area median income (AMI). This study focuses on how to grow the Lexington CLT into self-sustainability while also narrowing the affordable housing gaps in Fayette County. Current research offers support for the city’s affordable housing program to adopt the community land trust model (CLT). The research recommends using tools such as the Lexington CLT, the Lexington-Fayette Urban County Landbank Authority (LFUCLA), and Lexington’s Affordable Housing Trust Fund, along with new development incentives, to develop a housing strategy that is ...

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Design And Construction Of Drilled Shafts For Landslides, Malek Smadi Mar 2020

Design And Construction Of Drilled Shafts For Landslides, Malek Smadi

Purdue Road School

In general, weathered shale underlain by shale interbedded with limestone is the main forma-tion that underlies many of the slopes adjacent to the Ohio River in southern Indiana. During wet periods the weathered shale exhibits a sig-nificant decrease in strength, which has led to a number of landslides. In this session several case histories will be presented where drilled shafts have been used to repair and improve the safety of homes and roadways.

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Travel Time Data Using Google, Xinbo Mi Mar 2020

Travel Time Data Using Google, Xinbo Mi

Purdue Road School

When we need travel time information between an origin and destination, we used to drive the corridor and record the travel time data. Now we have a much easier way to obtain travel time data along a corridor: Google API (application programming interfaces). This is a very easy tool to use. All you need is a browser, a text editor, and perhaps my presentation, which is not highly technical. Everyone is welcome!

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Railway Bridges Up-To-Date, Stephen Dick Mar 2020

Railway Bridges Up-To-Date, Stephen Dick

Purdue Road School

Railroad bridges are not foremost on people’s minds, but they are still a critical item in our nation’s infrastructure. The railroads have a major investment in their bridges, and with many beyond 100 years old, maintenance and replacement of them is still a major cost item. This presentation describes the current state of railroad bridges, discusses older and new bridges, and addresses the current regulatory environment.

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Plant Growth Layer: Recurring Special Provision 629-R-630, Kurt Pelz, Shawn Slaymon Mar 2020

Plant Growth Layer: Recurring Special Provision 629-R-630, Kurt Pelz, Shawn Slaymon

Purdue Road School

This presentation encapsulates everything from what plant growth layer is and how it was developed to when it should be added to projects, its proper verification, and estimating PGL quantities. This presentation will also include project-specific examples of the limitations and expectations of PGL during the design and construction phase.

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Superpave5: What Is It?, Matt Beeson, Gerry Huber Mar 2020

Superpave5: What Is It?, Matt Beeson, Gerry Huber

Purdue Road School

INDOT revised the asphalt specification in 2019 based on the concept of Superpave 5—that higher in-place density yields improved performance disability. This session will provide insight into the science of how Superpave 5 works while giving designers an understanding of how it affects design and construction specifications.

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Highway Safety 2020 - Catch The Vision: Saving Lives (And Preventing Serious Injuries), Rick Drumm Mar 2020

Highway Safety 2020 - Catch The Vision: Saving Lives (And Preventing Serious Injuries), Rick Drumm

Purdue Road School

This session presents a view of highway safety up to this point in the 21st century, across the country and in Indiana. We will look back at notable initiatives that have shaped today’s highway safety landscape and assess where we stand now. Then, as we look into the future, learn how you can help make Indiana’s roads and highways safer.

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The Future State Of Mobility, Jerome Quandt Mar 2020

The Future State Of Mobility, Jerome Quandt

Purdue Road School

Formed in 2018, the Illinois Autonomous Vehicles Association (ILAVA) is a privately funded non-for-profit organization focused on establishing thought leadership in the state of Illinois, by identifying and addressing the current and emerging opportunities related to the inevitable growth of CAV technologies throughout the transportation network. Through the deployment of scalable and sustainable business solutions, facilitating industry education and establishing thought leadership, ILAVA is creating an ecosystem that defines Illinois as #TheFutureStateofMobility.

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Airport Infrastructure Planning, Robert Page Mar 2020

Airport Infrastructure Planning, Robert Page

Purdue Road School

All across the country, airports are now facing many challenges related to resiliency and the possible disruption of airport traffic. This presentation will focus on the factors impacting the ability of airports to respond to those factors, including climate change, localized flooding, heat waves, and snow events. As these weather events can impact passengers and workers, the need for airports to be able to respond to extreme events is greater than ever.

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Nurturing Diversity In The Workplace, Julian Hayes, Sarah Baty Mar 2020

Nurturing Diversity In The Workplace, Julian Hayes, Sarah Baty

Purdue Road School

A workplace with people of varying genders, ages, religions, races, ethnicities, sexual orientations, and cultural backgrounds leads to greater innovation, reduced employee turnover, and other competitive advantages. Learn more about the benefits of workplace diversity and tips for nurturing diversity and inclusion where you work. In addition to sharing the latest research and best practices, this session will also include the speakers’ personal experiences with building positive change at HNTB Indiana.

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All You Need To Know About Cybersecurity Ever! In 45 Minutes, Joe Beckman Mar 2020

All You Need To Know About Cybersecurity Ever! In 45 Minutes, Joe Beckman

Purdue Road School

This session will cover the information every local government official needs to know to keep their data safe from hackers.

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Faa Airmen Database Geospatial Distribution Patterns, Joseph P. Hupy, Sam Scroggs, Jaspar Saadi-Klein Mar 2020

Faa Airmen Database Geospatial Distribution Patterns, Joseph P. Hupy, Sam Scroggs, Jaspar Saadi-Klein

Purdue Road School

There are currently more than 572,000 registered pilots in the United States, ranging from commercial UAS pilots to commercial manned aircraft. Although pilots are registered in each of the 50 states, where they live and reside can be seen through various forms of geospatial statistical analysis in a geographic information system. This talk explores spatial patterns of the FAA U.S. Airmen database through hotspot and cluster-based analysis of the database.

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Indot Maintenance - Next Level, Michael E. Brinkerhoff Mar 2020

Indot Maintenance - Next Level, Michael E. Brinkerhoff

Purdue Road School

INDOT, similar to many municipalities, has developed structured methods to not only inspect assets, but to identify deficiencies in an extremely efficient manner. This has led to multiple metrics for tracking customer service resolutions, bridge and large culvert hit rates, and other similar type performance standards. While technology for data collection and analysis are heavily weighed to meet agency goals, the need for out of the box solutions has grown immensely. Going beyond the metrics, many field personnel are tasked with keeping INDOT assets functioning for the safety and mobility of the public. This has pushed INDOT to the NEXT ...

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I-69 Orx: A Bistate Megaproject = Project Management2, Jim Poturalski, Mindy Peterson, Steven Nicaise, Kevin Jasinski Mar 2020

I-69 Orx: A Bistate Megaproject = Project Management2, Jim Poturalski, Mindy Peterson, Steven Nicaise, Kevin Jasinski

Purdue Road School

Managing a large project is full of challenges. Needs grow exponentially when you’re managing a bistate megaproject with two clients and twice the number of agencies, elected leaders, community groups, media outlets, and other stakeholders. The I-69 Ohio River Crossing team will share strategies to improve internal and external communications, streamline processes, build consensus, increase collaboration, and maximize stakeholder engagement—all while maintaining an accelerated schedule

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Improving Public Works Construction Inspection Skills, Benjamin J. Jordan Mar 2020

Improving Public Works Construction Inspection Skills, Benjamin J. Jordan

Purdue Road School

Indiana LTAP will be offering several courses related to improving public works projects and operations. The first course offered in 2020 will be with the assistance of UW–Madison Engineering Professional Development. The course, Improving Public Works Construction Inspection Skills, is a comprehensive overview of inspection fundamentals, practical methods, and techniques for the most common types of public works construction and will increase your confidence in dealing with contractors and the public.

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Unmanned Aerial Systems Modeling In A Geographic Information System, Joseph P. Hupy, Zachary Miller Mar 2020

Unmanned Aerial Systems Modeling In A Geographic Information System, Joseph P. Hupy, Zachary Miller

Purdue Road School

The abilities of UAS to gather high-resolution imagery over a given area on a frequent basis are now well-known to those in the construction and excavation industries. Less well known, however, are the ways that UAS data can be used in value-added data analysis. Using real-world examples, this talk explores how UAS data can be used for modeling and monitoring in a geo-graphic information system (GIS).

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Why You Should Pay Attention! Changes To Achieve Better Performing Concrete Pavements, Mike Byers Mar 2020

Why You Should Pay Attention! Changes To Achieve Better Performing Concrete Pavements, Mike Byers

Purdue Road School

Research and new product developments are being implemented in concrete mixes and pavements to enhance long-term freeze-thaw performance. Come hear how these mix and pavement design changes can be easily incorporated into any exterior concrete installation on your local projects, including city and county roads, side-walks, approaches, curbs and gutters, and more.

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Dnr Permitting From A Consultant’S Perspective: Construction In A Floodway, Paul Brayton, Nicole Reed Mar 2020

Dnr Permitting From A Consultant’S Perspective: Construction In A Floodway, Paul Brayton, Nicole Reed

Purdue Road School

When working near a river or stream, it is likely that a Construction in a Floodway (CIF) permit will be required. Consultants submitting permits to regulatory agencies can encounter costly delays trying to get them approved. This presentation will focus on the best practices to help streamline the permitting process by walking through the permitting process from a consultant’s perspective, including what projects need a CIF permit, and when to submit.

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Monon Boulevard: A Linear Park That Integrates Vehicles With Pedestrians, Jeremy Cashman, Carl Kincaid, Trent Newport Mar 2020

Monon Boulevard: A Linear Park That Integrates Vehicles With Pedestrians, Jeremy Cashman, Carl Kincaid, Trent Newport

Purdue Road School

Midtown is the connector between the vibrant Arts and Design District and the Carmel City Center and is bisected by the Monon Greenway. Once completed in early 2020, the award-winning Monon Boulevard project will be a long-term investment in the economic and social well-being of the community by offering points of interest through a series of destinations that will provide reasons to walk and bike along a safe, interesting, and engaging corridor.

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Changes In Cdl Rules And Regulations And What It Means For You, Jeff Beeler Mar 2020

Changes In Cdl Rules And Regulations And What It Means For You, Jeff Beeler

Purdue Road School

The CDL application process is changing. The DOT’s Federal Motor Carrier Safety Administration (FMCSA) will now have a registry of approved trainers that entry-level truckers must use, Class A and Class B CDL applicants will have separate standards, and there are new requirements for certain endorsements. Potential drivers will have to wait longer to get in a truck and start making money, and for some the training will be cost-prohibitive. Join us for a discussion.

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