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Full-Text Articles in Engineering

Performance Of Bridge Decks And Girders With Lightweight Aggregate Concrete, V. 2 Of 2, J. A. Ramirez, J. Olek, Eric Joseph Rolle, Brian Joseph Malone Oct 2000

Performance Of Bridge Decks And Girders With Lightweight Aggregate Concrete, V. 2 Of 2, J. A. Ramirez, J. Olek, Eric Joseph Rolle, Brian Joseph Malone

JTRP Technical Reports

Structural lightweight concrete is a very versatile material and Haydite and Minergy lightweight aggregates can be utilized in the mixture development of concrete for use in girders and decks in bridges. More widespread use of lightweight aggregates (LWA) would result in savings in construction cost due to considerable dead load reduction.

The materials phase of this research study evaluated the fresh concrete properties (slump, unit weight, and air content), the mechanical properties of hardened concrete (compressive strength, tensile strength, flexural strength, static and dynamic modulus of elasticity, Poisson’s Ratio, and temperature development), and durability related parameters (air void distribution ...


2000 Indiana County Highway Department Wage And Salary Survey, Indiana Ltap Sep 2000

2000 Indiana County Highway Department Wage And Salary Survey, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

Included in this publication are wage and salary figures for the major salaried and hourly county highway positions in Indiana. In addition, the numbers of employees working under each job title are tabulated, and the ratio of total number of employees per mile of county road is displayed. The following series of tables are divided into four categories: administration, maintenance and repair, general and undistributed, and cumulative bridge. The appendix presents the recommended methods for calculating the labor burden for both salaried and hourly employees. Also included are generalized worksheets, which may be copied and used to calculate labor burden ...


Bridge Rail Rating Guide, Marc Friedman Aug 2000

Bridge Rail Rating Guide, Marc Friedman

Indiana Local Technical Assistance Program (LTAP) Publications

This guide provides criteria and check lists for rating bridge railings, approach rails, tranisitions, and end terminals to be used during a visual inspection of these bridge elements.


2000 Summary Of Road And Street Inventory Data For Indiana Lpa's For Adams County, In, Indiana Ltap Apr 2000

2000 Summary Of Road And Street Inventory Data For Indiana Lpa's For Adams County, In, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

This report provides roadway mileage summary information for each incorporated agency within Adams County as well as statewide summaries of mileage broken down by agency type, roadway functional classification, surface type, and federal-aid system for all local roads and streets within Indiana. The body of this report has been divided into three distinct sections, Reference Reports, Statewide Summary Reports, and County Specific Reports.

In Section 1, Reference Reports, the statewide functional classifications, surface types, and federal-aid systems are given in three reports. These three reports serve as an overview of the possible functional classifications, surface types, or federal-aid systems, which ...


Indiana High Accuracy Reference Network (Harn) Final Report, Boudewijn H.W. Van Gelder, David J. Vandenberg, Aaron W. Braun Mar 2000

Indiana High Accuracy Reference Network (Harn) Final Report, Boudewijn H.W. Van Gelder, David J. Vandenberg, Aaron W. Braun

Indiana Local Technical Assistance Program (LTAP) Publications

This report has three main areas of interest. First, a brief discussion on the need for the Indiana HARN and why this was an important task. Second, a summary of the details surrounding the Indiana HARN survey. Finally, the station description of the HARN point in your county is attached with a map of the general area surrounding this point. We have also included a discussion on monument preservation with tips on how keep the high accuracies associated with your point(s). Also, a section is included on how the HARN is being used in Indiana with a few success ...


2000 Bridge Sufficiency Rating Report For All Indiana Counties, Indiana Ltap Jan 2000

2000 Bridge Sufficiency Rating Report For All Indiana Counties, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

This report provides bridge sufficiency rating information for each county bridge in each Indiana county. County officials can view a quick overall assessment of their bridge needs. This information is a convenient starting point for formulating a long-range plan to cope with their county bridge deficiencies.


2000 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Indiana Ltap Jan 2000

2000 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 agency officials and employees responsible for Indiana’s local road infrastructure.


Efficacy Of Interposed Abdominal Compression-Cardiopulmonary Resuscitation (Cpr), Active Compression And Decompression-Cpr, And Lifestick Cpr: Basic Physiology In A Spreadsheet Model, Charles F. Babbs Jan 2000

Efficacy Of Interposed Abdominal Compression-Cardiopulmonary Resuscitation (Cpr), Active Compression And Decompression-Cpr, And Lifestick Cpr: Basic Physiology In A Spreadsheet Model, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Publications

This study was undertaken to understand and predict results of experimental cardiopulmonary resuscitation (CPR) techniques involving compression and decompression of either the chest or the abdomen. Simple mathematical models of the adult human circulation were used. Assumptions of the models are limited to normal human anatomy and physiology, the definition of compliance (volume change/pressure change), and Ohm’s law (flow = pressure / resistance). Interposed abdominal compression-CPR, active compression and decompression of the chest, and Lifestick CPR, which combines interposed abdominal compression and active compression and decompression, produce, respectively, 1.9-, 1.2-, and 2.4- fold greater blood flow than ...


Borman Expressway Point-To-Point Wireless Modem, J. V. Krogmeier, Michael P. Fitz Jan 2000

Borman Expressway Point-To-Point Wireless Modem, J. V. Krogmeier, Michael P. Fitz

JTRP Technical Reports

The Federal Highway Administration has a nationwide allocation of five frequency pairs in the 220-222 MHz Narrowband Radio Services band which are intended for application in Intelligent Transportation Systems. These frequencies are available for use by state DOTs (subject to FHWA approval) and provide an attractive solution for certain low to medium bit rate data communications applications. However, given the limited bandwidth available in these channels, very efficient modems will be required to make maximum beneficial use of this resource. The goal of this project was to design, field test, and deploy a digital radio which uses the 220-222 MHz ...


Evaluation Of Lightweight Non-Contact Profilers, Amit Mondal, Adam J. Hand, David R. Ward Jan 2000

Evaluation Of Lightweight Non-Contact Profilers, Amit Mondal, Adam J. Hand, David R. Ward

JTRP Technical Reports

Pavement smoothness was recently identified as the most significant factor the motoring public uses to judge the quality of our Nations roadways. A new generation of lightweight profilers has recently been developed, which have the potential of providing nearly instantaneous smoothness measurements, providing contractors with a tool to identify and address process control issues promptly and cost effectively. The new technology was co-operatively evaluated by a team of Purdue University and Indiana Department of Transportation (INDOT) researchers to assess the repeatability and reproducibility of the devices, as well as the potential for their use in Indiana. A successful field test ...


Performance Of Bridge Decks And Girders With Lightweight Aggregate Concrete, J. A. Ramirez, J. Olek, Eric Joseph Rolle, Brian J. Manlone Jan 2000

Performance Of Bridge Decks And Girders With Lightweight Aggregate Concrete, J. A. Ramirez, J. Olek, Eric Joseph Rolle, Brian J. Manlone

JTRP Technical Reports

Structural lightweight concrete is a very versatile material and Haydite and Minergy lightweight aggregates can be utilized in the mixture development of concrete for use in girders and decks in bridges. More widespread use of lightweight aggregates (LWA) would result in savings in construction cost due to considerable dead load reduction. The materials phase of this research study evaluated the fresh concrete properties (slump, unit weight, and air content), the mechanical properties of hardened concrete (compressive strength, tensile strength, flexural strength, static and dynamic modulus of elasticity, Poisson’s Ratio, and temperature development), and durability related parameters (air void distribution ...


Optical Imaging Method For Bridge Painting Maintenance And Inspection, Luh M. Chang, Yasser Abdelrazig, Po-Han Chen Jan 2000

Optical Imaging Method For Bridge Painting Maintenance And Inspection, Luh M. Chang, Yasser Abdelrazig, Po-Han Chen

JTRP Technical Reports

The term "quality" is defined as the conformance to predetermined requirements or specifications. These requirements may be set in terms of the end result required or as a detailed description of how work should be executed. Recently, there has been increasing interest in quality assurance in the construction industry. Quality assurance includes design and planning, sampling, inspection, testing, and assessment to ensure that end products perform according to specifications. This research proposes a new quality assessment model for highway steel bridges and more specifically for coating rust assessment. The research proposes a hybrid model using image processing and neural networks ...


Field Implementation Of Bioremediation At Indot Facilities-Phase I, Loring F. Nies, Brett Robert Baldwin, Matthew B. Mesarch Jan 2000

Field Implementation Of Bioremediation At Indot Facilities-Phase I, Loring F. Nies, Brett Robert Baldwin, Matthew B. Mesarch

JTRP Technical Reports

Bioremediation is often the most cost-effective and successful technique available for the remediation of soils and groundwater contaminated with organic pollutants (e.g. petroleum). The goal of bioremediation is to stimulate naturally occurring microorganisms to biodegrade the contaminants to harmless products. To be in compliance with EPA regulations all underground fuel storage tanks must have spill, leak and corrosion protection. Many older obsolete tanks had deteriorated to the extent that petroleum products had leaked into the environment. In the past, petroleum contaminated soils were typically excavated, followed by landfilling of the contaminated material. The continued use of landfills for disposal ...


Effect Of Fine Aggregate Angularity On Asphalt Mixture Performance, Chih-Jen Lee, Thomas D. White, Terry R. West Jan 2000

Effect Of Fine Aggregate Angularity On Asphalt Mixture Performance, Chih-Jen Lee, Thomas D. White, Terry R. West

JTRP Technical Reports

Superpave aggregate qualification includes the fine aggregate angularity (FAA). Fine aggregate angularity levels used in the Superpave system are below 40, 40 to 45 and above 45. The higher values are specified for layers near the surface and for higher traffic levels. The objective of this study was to address the effect of fine aggregate angularity on asphalt mixture rutting performance. A total of 18 mixtures were designed according to the Superpave volumetric design criteria. A surface mixture utilizing a partially crushed 9.5mm coarse aggregate and a single PG 64-22 binder were utilized. The poor quality coarse aggregate was ...


Indiana Lane Merge System - Warrants For Use, Andrzej P. Tarko, Shyam Venugopal Jan 2000

Indiana Lane Merge System - Warrants For Use, Andrzej P. Tarko, Shyam Venugopal

JTRP Technical Reports

The entry to a work zone is critical for traffic smoothness and safety because of the discontinuation of one or more lanes. The Indiana Lane Merge System (ILMS) was designed to implement dynamic lane change control at work zone entries by encouraging drivers to switch lanes well upstream of the discontinuous lane taper, thereby reducing the number of aggressive lane changes at the taper. At the time of this research, the ILMS had not been implemented on a large scale at rural freeway work zones. The Indiana Department of Transportation (INDOT) wanted to do a complete safety and capacity evaluation ...


Monitoring Of Long-Term Performance Of Highway Bridge Columns Retrofitted By Advanced Composite Jackets In Indiana, Ming-Hung Teng, Elisa D. Sotelino, Wai-Fah Chen Jan 2000

Monitoring Of Long-Term Performance Of Highway Bridge Columns Retrofitted By Advanced Composite Jackets In Indiana, Ming-Hung Teng, Elisa D. Sotelino, Wai-Fah Chen

JTRP Technical Reports

The service life of highway bridges is limited by the deterioration of their substructure components. In the U.S., it is estimated that more than 240,000 (about 40%) of the highway bridges are functionally or structurally deficient. Repairing these deteriorated bridges using traditional methods is usually time-consuming and expensive. Furthermore, these methods are such that they can cause a number of problems, such as being a threat to public safety and severe traffic disruption. Thus, it is important that new safer and more efficient methods be developed. Fiber Reinforced Plastics (FRP) have a great potential to provide such a ...


Providing Real-Time Traffic Advisory And Route Guidance To Manage Borman Incidents On-Line Using The Hoosier Helper Program, Srinivas Peeta, Jorge L. Ramos, Shyam Gedela Jan 2000

Providing Real-Time Traffic Advisory And Route Guidance To Manage Borman Incidents On-Line Using The Hoosier Helper Program, Srinivas Peeta, Jorge L. Ramos, Shyam Gedela

JTRP Technical Reports

This study addresses the issue of whether the message content of variable message signs (VMS) can be used as a control variable to favorably influence traffic conditions in real-time. The focus is on the level of detail of information displayed on the VMS, and not human factor issues. It implies an understanding of driver sensitivity to information content. Also, for real-time implementation, the displayed information should be consistent, timely, and reliable. A framework is developed for optimizing system performance under incidents using the VMS message content as the primary control parameter. It consists of: (i) an efficient control strategy to ...


Second Phase Study Of Changes In In-Service Asphalt (Vol 2: Appendices), Khaled A. Galal, Thomas D. White, Adam J. Hand Jan 2000

Second Phase Study Of Changes In In-Service Asphalt (Vol 2: Appendices), Khaled A. Galal, Thomas D. White, Adam J. Hand

JTRP Technical Reports

In response to the need to improve asphalt pavement performance, the Strategic Highway Research Program (SHRP) was initiated in 1987. Products from SHRP included performance-based specifications for asphalt binders and performance-based mix design tests and criteria for asphalt mixtures. The superpave asphalt binder specification addresses performance of in-service pavements for given environmental and traffic conditions. During the 1985 paving season in Indiana, the original asphalt binder and HMA (truck mix samples) from a number of pavements were sampled and retained. Cores were also taken from these pavements after seven or eight years of service. Conditions surveys were performed on these ...


Utilizing Gis Technology To Improve Indot Pavement Friction Data Management And Distribution, Karen Zhu Jan 2000

Utilizing Gis Technology To Improve Indot Pavement Friction Data Management And Distribution, Karen Zhu

JTRP Technical Reports

Pavement friction condition provides an important parameter in selecting highway rehabilitation and maintenance projects. The Research Division of Indiana Department of Transportation has been conducting annual pavement friction testing on the Indiana highway network. Due to the large amount of data accumulated, an efficient system is in demand for data management. In this project, we developed a computer program that constitutes an integrated system for friction data management and distribution. In the developed system, database technology was utilized for data storage and organization; networking technology was utilized for real-time data distribution; geographic information systems (GIS) technology as well as computer ...


Examination Of Post-Tensioned Steel Bridges In Indiana, Hung-I Wu, Mark D. Bowman Jan 2000

Examination Of Post-Tensioned Steel Bridges In Indiana, Hung-I Wu, Mark D. Bowman

JTRP Technical Reports

The purpose of the research study is to conduct an investigation to understand the performance of a relatively new type of bridge construction that involves prestressed (post-tensioned) steel-concrete composite bridge members. Strictly speaking, the technical and economical advantages of this type of structure have been understood for several decades. However, the application of this concept to practice is still very limited due to difficulties associated with the post-tensioning anchorage. The study was thus intended to explore the mechanical behavior of such construction. Both the short-term and long-term bridge performance were evaluated in this study.

The investigation included experimental as well ...


The Development Of A Speed Monitoring Program For Indiana, Darren L. Jorgenson, Kumares C. Sinha Jan 2000

The Development Of A Speed Monitoring Program For Indiana, Darren L. Jorgenson, Kumares C. Sinha

JTRP Technical Reports

From the passage of the National Maximum Speed Limit (NMSL) of 55 mph in 1974 through its repeal in 1995 speed monitoring programs have been mandated by the federal government. The speed-monitoring program was primarily intended to provide reliable data to be included as a part of the State’s annual certification in order to be approved for Federal Aid highway projects. The repeal of the NMSL in 1995 not only authorized states to set their own speed limits, it also allowed states to develop their own speed monitoring programs. The goal of this research is to provide the framework ...


A Field Study Of Scour Monitoring Devices For Indiana Streams, Thomas J. Cooper, Huey-Long Chen, Dennis A. Lyn, A. Ramachandra Rao, A. G. Altschaeffl Jan 2000

A Field Study Of Scour Monitoring Devices For Indiana Streams, Thomas J. Cooper, Huey-Long Chen, Dennis A. Lyn, A. Ramachandra Rao, A. G. Altschaeffl

JTRP Technical Reports

INDOT is considering the deployment of fixed scour-monitoring instrumentation as part of a systematic response to the problem of scour around bridge piers. Fixed-in-place automated scour-monitoring devices measure the depth of scour at the point where they are installed. Unless they are installed at the location where maximum scour occurs, their readings may give a misleading estimate of scour potential. This raises a number of technical issues concerning their effective deployment and the interpretation of the collected data, which should be resolved in order to maximize the benefits to INDOT from using these monitoring devices. These include the location of ...


Indot Training Needs Study, Ray E. Eberts, Jodi S. Goodman, Bob G. Mccullouch, Kumares C. Sinha Jan 2000

Indot Training Needs Study, Ray E. Eberts, Jodi S. Goodman, Bob G. Mccullouch, Kumares C. Sinha

JTRP Technical Reports

During the strategic plan development process, the INDOT staff identified a list of possible training needs, which included suggestions for workshops, certification procedures, training sessions for interpersonal communication, computer skills, and video conferencing, as well as more specific topics such as hazardous areas and clean up of contaminated soil. This study’s objective is to assess current and future training needs at INDOT on a comprehensive basis, as well as analyze current and future trends in order to fulfill the INDOT strategic goals and objectives.


New Treatment Combinations For Vegetation Management Along Indiana Roadsides, D. James Morré Jan 2000

New Treatment Combinations For Vegetation Management Along Indiana Roadsides, D. James Morré

JTRP Technical Reports

This report represents results from a project for research to develop and implement new treatment mixtures for control of problem brush, trees and other woody species and herbicide-resistant weeds along Indiana roadsides. An environmentally safe mixture of trichlopyr (Galon Herbicide) and ammonium nitrate for one application control of deciduous roadside vegetation was developed. Also discovered and developed was a new, environmentally safe and effective TR series of additives that enhance the action of the auxin herbicides (trichlopyr, 2,4-D, picloram) for inclusion in both the brush control mixtures and control of milkweed, Canada thistle, bindweed, ground cherry and other perennial ...


Second Phase Study Of Changes In In-Service Asphalt (Vol 1: Main Report), Khaled A. Galal, Thomas D. White, Adam J. Hand Jan 2000

Second Phase Study Of Changes In In-Service Asphalt (Vol 1: Main Report), Khaled A. Galal, Thomas D. White, Adam J. Hand

JTRP Technical Reports

In response to the need to improve asphalt pavement performance, the Strategic Highway Research Program (SHRP) was initiated in 1987. Products from SHRP included performance-based specifications for asphalt binders and performance-based mix design tests and criteria for asphalt mixtures. The Superpave asphalt binder specification addresses performance of in-service pavements for given environmental and traffic conditions. During the 1985 paving season in Indiana, the original asphalt binder and HMA (truck mix samples) from a number of pavements were sampled and retained. Cores were also taken from these pavements after seven or eight years of service. Condition surveys were performed on these ...


Optimal Design Of Freeway Incident Response Systems, Raktim Pal, Kumares C. Sinha Jan 2000

Optimal Design Of Freeway Incident Response Systems, Raktim Pal, Kumares C. Sinha

JTRP Technical Reports

Several states have introduced service patrol programs to curb the growing adverse impacts of freeway incidents. An efficient patrol program configuration design is needed to ensure appropriate resource allocation. This research seeks to devise a scheme for determining optimally such system characteristics as hours of operation, fleet and crew sizes, dispatching policies, areas of operation, and routing patterns, so that the efficacy of the program is maximized. The interaction of randomly occurring incidents with time-varying traffic adds to the complexity of the problem. The problem is solved using dynamic simulation approaches combined with optimization techniques to incorporate the non-linear impact ...


Wireless Local Area Network For Its Communications Using The 220 Mhz Its Spectral Allocation, J. V. Krogmeier, Ness Shroff Jan 2000

Wireless Local Area Network For Its Communications Using The 220 Mhz Its Spectral Allocation, J. V. Krogmeier, Ness Shroff

JTRP Technical Reports

The objective of this project was to design a radio architecture using the ITS spectral allocations in the 220-222 MHz Land Mobile band which provides a multi-mode operation optimized for point-to-point, mobile, and multiple access communications. A radio performance goal was to achieve greater than 3 bits/second/Hz transmission efficiency for mobile applications, and greater than a 5 bits/second/Hz transmission efficiency for point-to-point applications. An additional important goal of this project was to explore potential ITS applications of the modem technology particularly as applied to an application in sensor telemetry concentration. The fixed point modem will be ...


A Laboratory Sensitivity Study Of Hydraulic Parameters Important In The Deployment Of Fixed-In-Place Scour-Monitoring Devices, Dennis A. Lyn, E. Neseem, A. Ramachandra Rao, A. G. Altschaeffl Jan 2000

A Laboratory Sensitivity Study Of Hydraulic Parameters Important In The Deployment Of Fixed-In-Place Scour-Monitoring Devices, Dennis A. Lyn, E. Neseem, A. Ramachandra Rao, A. G. Altschaeffl

JTRP Technical Reports

INDOT is considering the deployment of fixed scour-monitoring instrumentation as part of a systematic response to the problem of scour around bridge piers. Fixed-in-place automated scour-monitoring devices measure the depth of scour at the point where they are installed. Unless they are installed at the location where maximum scour occurs, their readings may give a misleading estimate of scour potential. This raises a number of technical issues concerning their effective deployment and the interpretation of the collected data, which should be resolved in order to maximize the benefits to INDOT from using these monitoring devices. These include the location of ...


A Methodology To Estimate Load And Non-Load Shares Of Highway Pavement Routine Maintenance And Rehabilitation Expenditures, Zongzhi Li, Kumares C. Sinha Jan 2000

A Methodology To Estimate Load And Non-Load Shares Of Highway Pavement Routine Maintenance And Rehabilitation Expenditures, Zongzhi Li, Kumares C. Sinha

JTRP Technical Reports

The present study focused on the estimation of load and non-load shares of pavement maintenance and rehabilitation expenditures. The information provides the basis for the allocation of pavement-related expenditures in a highway cost allocation study. A comprehensive database was developed in the study, and an aggregate performance approach was used based on econometric models. This approach utilizes the marginal effect of traffic loading to quantify the load and non-load shares of pavement routine maintenance and rehabilitation expenditures. The study revealed that the share of pavement damage attributable to load and non-load factors depends on several factors such as the type ...


Construction Data Management 2000, Bob G. Mccullouch Jan 2000

Construction Data Management 2000, Bob G. Mccullouch

JTRP Technical Reports

Construction Data Management 2000 was a project designed to help guide INDOT into using emerging technologies to meet data management needs in the construction process. The landscape at INDOT has changed, having been shaped through the factors of increased workloads, a reduced number of employees, and increasing dependence on outside consultants to fill the needs. This has resulted in changing roles for INDOT employees creating differing data management needs. This project looked into this area, studied various answers, and is recommending solutions. This report describes the work performed and proposes recommendations with supporting documentation. The original project scope had the ...