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Articles 31 - 52 of 52

Full-Text Articles in Other Civil and Environmental Engineering

2015 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Indiana Ltap Mar 2015

2015 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Directory

Contact information for local agency officials and employees responsible for Indiana’s local road infrastructure.


Roundabout Maintenance Flipbook, Indiana Ltap Jan 2015

Roundabout Maintenance Flipbook, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

This flipbook is a summary of the work pub­lished in the Roundabout Maintenance Manual by Indiana LTAP. This information was collected through a series of interviews with city engi­neers, public works directors, and street commis­sioners experienced in roundabout maintenance. It serves as a model to guide work crews in correct maintenance procedures.


Roundabout Maintenance Manual, Indiana Ltap Jan 2015

Roundabout Maintenance Manual, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

This maintenance manual serves as an additional resource for communities who have imple­mented roundabouts or are considering them. There are a few other published guides, such as the NCHRP Report 672, Roundabouts: An Informational Guide, and the Wisconsin DOT Facilities Develop­ment Manual. However, the information covered in these guides is very broad. This manual provides specific information regarding roundabout maintenance.


Traffic Safety Primer For Local Agencies, Indiana Ltap, Michigan Ltap Dec 2014

Traffic Safety Primer For Local Agencies, Indiana Ltap, Michigan Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

The purpose of this booklet is to empower local agency personnel to make informed decisions that can improve roadway safety in your community. By identifying and addressing potential roadway hazards, you can reduce the likelihood of a future traffic crash for your community and your family. Adapted by permission from the Michigan LTAP’s 2008 Publication What Elected Officials Need to Know About Traffic Safety (And What YOUR Constituents Expect YOU to Know!)


Best Practices In Trail Maintenance, Indiana Ltap, Ohio River Greenway Development Commission Nov 2014

Best Practices In Trail Maintenance, Indiana Ltap, Ohio River Greenway Development Commission

Indiana Local Technical Assistance Program (LTAP) Publications

This manual is intended for practical use by trail maintenance managers. It will also be useful for policy makers who are tasked with anticipating and planning for maintenance budget and personnel needs. The recommendations included in this manual were chosen, in part, to facilitate widespread adoption by other trail operators. They are cost-effective solutions that require minimal technological or financial commitments.

This manual does not provide guidance for trail construction and design, except where a maintenance issue can best be resolved by constructing new trail segments. For best practices in design and construction, consult the thorough list of resources provided …


Bio-Inspired Helicoidal Composites: 3d Printing And Experiments, Michael E. Jones, Pablo Zavattieri, Nobphadon Suksangpanya Aug 2014

Bio-Inspired Helicoidal Composites: 3d Printing And Experiments, Michael E. Jones, Pablo Zavattieri, Nobphadon Suksangpanya

The Summer Undergraduate Research Fellowship (SURF) Symposium

Materials that are impact resistant enough for personal protection in sports, transport, and combat are not also lightweight, strong, tough, and impact tolerant. Nature can provide inspiration for novel materials that can meet these needs. The hierarchical composite of the stomatopod’s, or mantis shrimp’s, dactyl club has been shown to have high impact resistance and damage tolerance due to its helicoidal fiber reinforcement(1,2). Analyzing helicoidal composites of different pitch angles (angles between adjacent rows of fibers) under quasi-static, displacement-controlled loading has provided insights into the fracture mechanisms of the composite structure and how they affect the macroscopic properties of the …


Roundabout Maintenance Manual, Emily A. Bonini, Pat Conner P.E., John Haddock Phd, P.E., Yu Tian Aug 2014

Roundabout Maintenance Manual, Emily A. Bonini, Pat Conner P.E., John Haddock Phd, P.E., Yu Tian

The Summer Undergraduate Research Fellowship (SURF) Symposium

In recent years, roundabouts have been rapidly growing in popularity. As a result, many communities are installing them in their roadways; however, they are encountering difficulties in maintaining them. Uneducated workers can cause damage to roundabouts and to themselves, costing cities time and money. This project aims to create a guide for communities new to roundabouts in order to reduce damages and unnecessary maintenance costs. Data was gathered by determining the most common maintenance questions and problems along with what information was already available on roundabout maintenance. Next, agencies most experienced with roundabouts were surveyed on the best maintenance practices. …


2013 Summary Of Highway Revenues, Distributions & Expenses, Indiana Ltap Jul 2014

2013 Summary Of Highway Revenues, Distributions & Expenses, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

This report provides information on revenues, distributions, and expenses of state and local governments for highway, road, and street work. Since the Motor Vehicle Highway (MVH) and Local Road and Street (LRS) Accounts are the principal source of funds for local road or street construction and maintenance operations, this summary may be used to see the trends in income sources and in the expenses charged to the funds prior to their being distributed to the highway, road, and street agencies.


2014 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Indiana Ltap Mar 2014

2014 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Directory

Contact information for local agency officials and employees responsible for Indiana’s local road infrastructure.


Concise Handbook For Temporary Traffic Control, Indiana Ltap, Ohio Department Of Transportation Jan 2014

Concise Handbook For Temporary Traffic Control, Indiana Ltap, Ohio Department Of Transportation

Indiana Local Technical Assistance Program (LTAP) Publications

This handbook gives the basic principles and provides examples for the design, application, installation, and maintenance of the various types of traffic control devices used in temporary traffic control or for incident management. The guidelines presented are in accordance with the standards provided within the Indiana Manual for Uniform Traffic Control Devices (IMUTCD). This handbook is based upon one created by the Ohio Department of Transportation, Guidelines for Traffic Control in Work Zones. Indiana LTAP expresses thanks to ODOT for their permission to reprint this material.


Development Of Resilience Index In Transport Systems, Seungjae Lee, Jooyoung Kim, Shinhae Lee, Yan Chang-Richards Jan 2014

Development Of Resilience Index In Transport Systems, Seungjae Lee, Jooyoung Kim, Shinhae Lee, Yan Chang-Richards

International Institute for Infrastructure Resilience and Reconstruction (I3R2) Conference

This paper demonstrates the quantification of the resilience index (RI) in transport systems. The transport infrastructure can be managed by using the concepts of resilience. Vugrin, Warren, Ehlen, & Camphouse (2010) emphasized the enhancement of resilience in infrastructure before disasters and the establishment of efficient measures for the recovery of systems in an emergency. The concept of resilience has a significant influence on transport planning and operations for disaster preparation. Lee, Kim, & Lee (2013) investigated the concepts of resilience and examined case studies using valuable asset-management techniques in order to maintain the resilience concepts which should be introduced in …


Freeze Thaw Durability Of Internally Cured Concrete Made Using Superabsorbent Polymers, Wesley A. Jones, W. Jason Weiss Jan 2014

Freeze Thaw Durability Of Internally Cured Concrete Made Using Superabsorbent Polymers, Wesley A. Jones, W. Jason Weiss

International Conference on Durability of Concrete Structures

The use of superabsorbent polymers (SAPs) to produce internally cured concrete has been shown to be effective in reducing the potential for restrained shrinkage cracking of high performance concrete mixtures. However, not much is known regarding the freeze–thaw durability of concrete mixtures that incorporate SAPs for internal curing (IC). When SAP particles desorb (or partially desorb) the “water” (pore fluid) they contain for the purposes of IC, some believe that the void space created by these particles can provide enough empty voids to accommodate the additional volume caused by water expansion upon freezing. This paper investigates the freeze–thaw durability of …


Absorption Simulation ( Absim ) Software Development, Vipul Vishnu Bhat, Ming Qu Oct 2013

Absorption Simulation ( Absim ) Software Development, Vipul Vishnu Bhat, Ming Qu

The Summer Undergraduate Research Fellowship (SURF) Symposium

Researchers working on air conditioning systems currently use a software called ABSIM ( Absorption Simulation ) to evaluate current absorption systems or simulate new system designs. ABSIM was developed at Oak Ridge National Labs in the 1980s and the latest platform it is compatible with is Windows XP. ABSIM is not compatible on newer platforms and is not very user friendly. A lot of the actions involved in using ABSIM aren’t very intuitive. The goal is to develop a more user friendly simulation program that is based off of ABSIM and see to it that the program can be deployed …


Compression Testing And Failure Modes Of Steel-Concrete Composite (Sc) Structures For Nuclear Containment, Patrick Michael Wanamaker, Amit H. Varma Oct 2013

Compression Testing And Failure Modes Of Steel-Concrete Composite (Sc) Structures For Nuclear Containment, Patrick Michael Wanamaker, Amit H. Varma

The Summer Undergraduate Research Fellowship (SURF) Symposium

Although being able to provide much cleaner power than burning coal and other fossil fuels, nuclear power plants are still a tough sell to the general public due to their history of being spontaneously dangerous. The containment structures surrounding these nuclear plants, however, can play a huge role in reducing the risks associated with them. Relatively new designs for these containment assemblies, known as SC (steel-concrete composite) structures, aim to increase the strength and durability of the containment facilities while keeping costs down. By varying the spacing between shear studs, the ratio of concrete to steel, and the ratio of …


Insights Into The Effect Of Geometrical Parameters In The Mechanical Properties Of The Radular Teeth Of The Cryptochiton Stelleri – A 3d Print Approach, Chan Jeong, Enrique Escobar, Pablo Zavattieri Dr. Oct 2013

Insights Into The Effect Of Geometrical Parameters In The Mechanical Properties Of The Radular Teeth Of The Cryptochiton Stelleri – A 3d Print Approach, Chan Jeong, Enrique Escobar, Pablo Zavattieri Dr.

The Summer Undergraduate Research Fellowship (SURF) Symposium

The Cryptochiton Stelleri is known to have ultra-hard radular teeth that have one of the largest hardness (9-12GPa) and stiffness (90-125GPa) among other biological materials such as Enamel and Abalone shell. The ultrastructure of the teeth is formed by a bundle of highly mineralized rods composed of iron oxides and organic material. The main method to measure the material properties has been through nanoindentation. However there are limitations to nanoindentation of the Chiton’s teeth such as limited equipment, costly and time consuming preparation of the samples, and observation of nanoscale features being difficult. In this work, the rod-like microstructure of …


Mutcd Revisions And Sign Upgrades, Jill Palmer, Karen Stippich Mar 2013

Mutcd Revisions And Sign Upgrades, Jill Palmer, Karen Stippich

Purdue Road School

Jill Palmer, PE has managed over a dozen sign inventories in response to new MUTCD requirements for retroreflectivity. This presentation shares lessons gleaned from that experience and a practical approach to satisfying the MUTCD criteria.


2013 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Indiana Ltap Mar 2013

2013 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Directory

Contact information for local agency officials and employees responsible for Indiana’s local road infrastructure.


2012 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Indiana Ltap Mar 2012

2012 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Directory

Contact information for local agency officials and employees responsible for Indiana’s local road infrastructure.


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 …


Engaging New Partners In Transportation Research: Integrating Publishing, Archiving, And Indexing Of Technical Literature Into The Research Process, Mark P. Newton, Darcy M. Bullock, Charles Watkinson, Paul J. Bracke, Deborah K. Horton Nov 2011

Engaging New Partners In Transportation Research: Integrating Publishing, Archiving, And Indexing Of Technical Literature Into The Research Process, Mark P. Newton, Darcy M. Bullock, Charles Watkinson, Paul J. Bracke, Deborah K. Horton

Libraries Research Publications

transportation research. The United States Department of Transportation (USDOT) annually invests approximately $180 million in State Planning and Research (SPR) and University Transportation Centers (UTC). This investment generates an extensive portfolio of “grey literature” that is not yet uniformly cataloged or accessible, despite the best efforts of the National Technical Information Service, the Transportation Research Board, and the National Transportation Library. This paper reports on a review of publishing and archiving practices for transportation research technical reports, summarizes best practices, and recommends that UTC and SPR research programs seek and strengthen partnerships with libraries to facilitate improved production, stewardship and …


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 …


The International Charter And Flood Mapping, Jie Shan Nov 2009

The International Charter And Flood Mapping, Jie Shan

GIS Day

An overview of recent Purdue activities related to the International Charter for Space and Major Disasters, including general information about The Charter, 3 Indiana flood examples, and a summary of the lessons learned therefrom.