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Full-Text Articles in Engineering

Construction Of Mse Wall Using Tire Shred-Sand Mixture As Backfill (Spr-3470), Monica Prezzi, Varenya Kumar Duvvuru Mohan Dec 2011

Construction Of Mse Wall Using Tire Shred-Sand Mixture As Backfill (Spr-3470), Monica Prezzi, Varenya Kumar Duvvuru Mohan

JTRP Other Publications and Reports

A large number of waste tires are generated each year throughout the world. Instead of disposing these tires in landfills, they can be used beneficially in road construction, MSE walls or structural fills that require large quantities of material. Such use of tires not only saves the costs of landfilling, but also provides certain desirable mechanical properties. The focus of this research was on determining important geotechnical properties of tire shred-sand mixtures required for their use as a lightweight backfill for MSE walls. Accordingly, the shear strength and pullout characteristics of tire shred-sand mixtures at various mixing ratios were determined …


Utilizing Technology To Increase The Recycled Content Of Asphalt Mix Designs, Nicholas Ricketts Dec 2011

Utilizing Technology To Increase The Recycled Content Of Asphalt Mix Designs, Nicholas Ricketts

Purdue Polytechnic Masters Theses

This directed project examined the idea that increasing the amount of recycled asphalt product in road construction will result in a comparable performance to the current levels of recycled asphalt product in today’s pavement. A critical review of literature is structured in four areas: describing the need (financial and environmental) for the increased use of recycled materials, describing how others have addressed the issue and technology needed for increasing the use of recycled content, describing how some contractors have created the technology needed, and finally describing the direction needed in order to encourage customers and government agencies to embrace the …


Estimating Highway Maintenance Work, Fifth Edition, Ohio Department Of Transportation, Indiana Ltap Jul 2011

Estimating Highway Maintenance Work, Fifth Edition, Ohio Department Of Transportation, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

This manual is founded upon a problem index that walks through a number of equations that will estimate the maintenance work required in areas such as bridge deck repair, chip and seal, crack sealing, mowing, road salt application, salt spreader calibration, and many more everyday road maintenance operations. The manual also includes an appendix to help with lengths, areas, volumes, rates, equivalents, and rules.


Development Of Guidelines For The Rating, Inspection, And Acquisition Of Railroad Flatcars For Use As Highway Bridges On Low-Volume Roads, Jason T. Provines, Robert Connor Jul 2011

Development Of Guidelines For The Rating, Inspection, And Acquisition Of Railroad Flatcars For Use As Highway Bridges On Low-Volume Roads, Jason T. Provines, Robert Connor

Indiana Local Technical Assistance Program (LTAP) Technical Reports

Due to budget constraints, many state and county highway agencies are often forced to develop innovative and economical rehabilitation strategies for deteriorated bridges. One such option is to use a retired railroad flatcar for a bridge superstructure. Railroad flatcars can be found in many lengths, making them versatile options for replacing bridges of a range of span lengths up to about 90 feet. Railroad flatcars are also completely modular and lightweight, allowing for quick construction. Within Indiana, as well as other states, several of these bridge structures have been in service for many years.

Although their performance has been satisfactory, …


Probabilistic Assessment Of Drought Characteristics Using A Hidden Markov Model, Ganeshchandra Mallya, Shivam Tripathi, Sergey Kirshner, Rao S. Govindaraju Jun 2011

Probabilistic Assessment Of Drought Characteristics Using A Hidden Markov Model, Ganeshchandra Mallya, Shivam Tripathi, Sergey Kirshner, Rao S. Govindaraju

2011 Symposium on Data-Driven Approaches to Droughts

Droughts are evaluated using drought indices that measure the departure of meteorological and hydrological variables such as precipitation and stream flow from their long-term averages. While there are many drought indices proposed in the literature, most of them use pre-defined thresholds for identifying drought classes ignoring the inherent uncertainties in characterizing droughts. In this study, a hidden Markov model (HMM) [1] is developed for probabilistic classification of drought states. The HMM captures space and time dependence in the data. The proposed model is applied to assess drought characteristics in Indiana using monthly precipitation and stream flow data. The comparison of …


An Asset Management Framework For Addressing The New Mutcd Traffic Sign Retroreflectivity Standards, Eric Hulme, Sarah Ml Hubbard, Grant D. Farnsworth, Alexander M. Hainen, Steve M. Remias, Darcy M. Bullock May 2011

An Asset Management Framework For Addressing The New Mutcd Traffic Sign Retroreflectivity Standards, Eric Hulme, Sarah Ml Hubbard, Grant D. Farnsworth, Alexander M. Hainen, Steve M. Remias, Darcy M. Bullock

Indiana Local Technical Assistance Program (LTAP) Technical Reports

The 2009 Manual on Uniform Traffic Control Devices (MUTCD) requires that all agencies implement traffic sign management programs by January 8th, 2012. Most agencies are expected to adopt some type of systematic replacement policy based on life expectancy, augmented by visual inspection to identify signs with obvious damage. Several previous efforts have developed models based on average degradation of the retroreflective sheeting as the signs age. This paper develops a series of survival curves characterizing the percent of signs that pass the retroreflectivity standards for signs ranging from 0 to 20 years. The curves representing expected conformance with the retroreflectivity …


How Do Millennial Engineering And Technology Students Experience Learning Through Traditional Teaching Methods Employed In The University Setting?, Elizabeth A. Howard May 2011

How Do Millennial Engineering And Technology Students Experience Learning Through Traditional Teaching Methods Employed In The University Setting?, Elizabeth A. Howard

Department of Computer Graphics Technology Degree Theses

The purpose of the study was to document and analyze how Millennial engineering and technology students experience learning in large lecture classrooms. To help achieve this purpose, perceptions Millennials have toward traditional teaching methods employed in large lecture classes were analyzed and discussed. Additionally, this study documented how Millennials experienced technology within large lecture classrooms. A learning model depicting how Millennials experience learning within the large lecture classroom was created based on the results of this study. This model employed three separate tools utilized within the large lecture classroom. These tools: Lecture, Technology, and Homework, work together to synthesize learning …


Fiber Reinforced Polymer Bridge Decks, Rita E. Rodriguez-Vera, Nicolas J. Lombardi, Marcelo A.S. Machado, Judy Liu, Elisa D. Sotelino May 2011

Fiber Reinforced Polymer Bridge Decks, Rita E. Rodriguez-Vera, Nicolas J. Lombardi, Marcelo A.S. Machado, Judy Liu, Elisa D. Sotelino

JTRP Technical Reports

The overarching goal of this study was to perform a comprehensive evaluation of various issues related to the strength and serviceability of the FRP deck panels that are available in the industry. Specific objectives were to establish critical limit states to be considered in the design of FRP deck panel, to provide performance specifications to designers, and to develop evaluation techniques for the deck panels in service.

Two different FRP panels were studied during the research project: a sandwich panel and a pultruded panel. The sandwich panel was initially selected for the rehabilitation case study bridge. However, for a variety …


Gis Based Pavement Maintenance: A Systematic Approach, Robert J. Kmetz Apr 2011

Gis Based Pavement Maintenance: A Systematic Approach, Robert J. Kmetz

Purdue Polytechnic Directed Projects

Abstract

According to 2008 Federal Highway Administration (FHWA) statistics, there are 2,734,102 miles of paved public roads in the United Sates, with an additional 1,324,245 miles of unpaved public roads. Road conditions deteriorate with time as the result of weather effects, deicing salts, and vehicle loads. The most common pavement distress includes cracking, rutting, and potholes. These pavement defects must be repaired to restore the pavement to a satisfactory service level for road users. According to the FHWA, in 2006 approximately $54.2 billion dollars was spent on maintenance and expansion, just on U.S. highways alone.

Routine maintenance is a cost …


Performance Of Indiana’S Superpave Hma Mixtures, Ayesha Shah, Rebecca Mcdaniel Apr 2011

Performance Of Indiana’S Superpave Hma Mixtures, Ayesha Shah, Rebecca Mcdaniel

JTRP Technical Reports

This project followed the performance of a number of hot mix asphalt paving projects for seven to eight years in an attempt to relate laboratory test results to field performance. First, a small scale study compared sampling locations, specific gravity test procedures and compaction devices used on two samples from projects, one with volumetric acceptance and one with non-volumetric acceptance, to determine the best combination to use for Part 2 of the study. In Part 2, 12 projects constructed in 2001 and 2002 were sampled, tested and monitored. Laboratory testing involved determining maximum and bulk specific gravities, binder content, air …


Understanding The Impact Of Indot Projects On Automotive Industry Cluster Logistics Costs: A Case Study Of The Honda Plant, Ananth Iyer, Barry K. Partridge, Mary Pilotte, Pete Mast, Gerald Simms Feb 2011

Understanding The Impact Of Indot Projects On Automotive Industry Cluster Logistics Costs: A Case Study Of The Honda Plant, Ananth Iyer, Barry K. Partridge, Mary Pilotte, Pete Mast, Gerald Simms

JTRP Technical Reports

No abstract provided.


Analysis Of Peer Intersection Data For Arterial Traffic Signal Coordination Decisions, Christopher M. Day, Thomas M. Brennan Jr, Hiromal Premachandra, James R. Sturdevant, Darcy M. Bullock Jan 2011

Analysis Of Peer Intersection Data For Arterial Traffic Signal Coordination Decisions, Christopher M. Day, Thomas M. Brennan Jr, Hiromal Premachandra, James R. Sturdevant, Darcy M. Bullock

Lyles School of Civil Engineering Faculty Publications

This is the author-accepted manuscript version of Day, C.M., T.M. Brennan, H. Premachandra, J.R. Sturdevant, and D.M. Bullock, “Analysis of Peer Data on Intersections for Decisions About Coordination of Arterial Traffic Signal,”Transportation Research Record: Journal of the Transportation Research Board, No. 2259, Transportation Research Board of the National Academies, Washington, D.C., pp. 23–36, 2011, copyright National Academy of Sciences.http://dx.doi.org/10.3141/2259-03

Its corresponding poster can be found here:http://docs.lib.purdue.edu/atspmw/2016/Posters/3/


Reliability, Flexibility, And Environmental Impact Of Alternative Arterial Offset Optimization Objective Functions, Christopher M. Day, Thomas M. Brennan Jr, Alexander M. Hainen, Stephen M. Remias, Hiromal Premachandra, James R. Sturdevant, Greg Richards, Jason S. Wasson, Darcy M. Bullock Jan 2011

Reliability, Flexibility, And Environmental Impact Of Alternative Arterial Offset Optimization Objective Functions, Christopher M. Day, Thomas M. Brennan Jr, Alexander M. Hainen, Stephen M. Remias, Hiromal Premachandra, James R. Sturdevant, Greg Richards, Jason S. Wasson, Darcy M. Bullock

Lyles School of Civil Engineering Faculty Publications

No abstract provided.


Design Mentoring Tool, Bob Mccullouch, Walter Land Jan 2011

Design Mentoring Tool, Bob Mccullouch, Walter Land

JTRP Technical Reports

In 2004 a design engineer on-line mentoring tool was developed and implemented The purpose of the tool was to assist senior engineers mentoring new engineers to the INDOT design process and improve their technical competency. This approach saves senior engineers time while developing a consistent mentoring approach and standardizing technical knowledge in road and bridge design. It is a self-guided tool that utilizes multi-media and web-based technologies, trains engineers in the design process and provides resources to use for developing plans and specifications. Available resources include INDOT design practices, design standards, design memos, specification and construction standards, procedures, and check …