Engineering Commons^™

Evaluation Of Electronic Truck Monitoring, Jerry G. Pigman, Joseph D. Crabtree

Kentucky Transportation Center Research Report

Automatic vehicle identification (AVI) and weigh-in-motion (WIM) equipment were installed at the northbound weigh/enforcement station on 1-65 in Simpson County, Kentucky. The objectives were to determine the reliability and accuracy of the equipment and to determine the benefits/costs for the trucking industry and enforcement agencies.

The test site for evaluation of the equipment became operational in July 1991 and the evaluation continued through June 1993. AVI equipment was provided by Amtech Corporation and WIM equipment by International Road Dynamics. Participating motor carriers were United Parcel Service and Averitt Express, with a total of 114 trucks equipped with transponders. The system …

Selection Of Design Strengths Of Untreated Soil Subgrades And Subgrades Treated With Cement And Hydrated Lime, David Q. Hunsucker, Tony L. Beckham

Kentucky Transportation Center Research Report

Selection of design strengths of soil subgrades and subgrades treated with cement or hydrated lime is a problem in pavement design analysis and construction because a variety of different types of soils may exist in a highway corridor and a wide range of different strengths may exist after the soils are compacted to form the pavement subgrade. The selected subgrade strength will largely affect the pavement thickness obtained from the design analysis, the future pavement performances, and the overall bearing capacities of the subgrade during construction and the pavement structure after construction. In developing the proposed selection scheme, a newly …

Wildlife Exposure Factors Handbook, Volume I Of Ii, United States Environmental Protection Agency

United States Environmental Protection Agency: Publications

The Exposure Assessment Group of the Office of Health and Environmental Assessment (OHEA) has prepared the Wildlife Exposure Handbook in support of the Office of Solid Waste and Emergency Response and the Office of Water. The Handbook provides information on various factors used to assess exposure to wildlife. The goals of the project are (1) to promote the application of risk assessment methods to wildlife species, (2) to foster a consistent approach to wildlife exposure and risk assessments, and (3) to increase the accessibility of the literature applicable to these assessments.
The bulk of the document summarizes literature values for …

Performance Of The Crash Cushion Attenuating Terminal (Cat) In Traffic Accidents, Kenneth R. Agent, Jerry G. Pigman

Kentucky Transportation Center Research Report

The objective of this study was to report the results of the continued monitoring of the performance of the Crash Cushion Attenuating Terminal (CAT) in traffic accidents.

The documented performance of the CAT system in traffic accidents justifies additional use. A recommended location would be at median piers and bridge abutments in narrow medians. While accidents involving this system should continue to be evaluated, this evaluation results in the conclusion that the CAT system could be classified as operational.

The performance of the CAT system indicates a couple of areas which should be addressed. For installations in a raised median, …

Development Of Computer Software To Aid Environmental Decision Makers In The Education And Training Of Air Force Remedial Project Managers, Roger R. Ouellette, Bruce K. Lyman

Theses and Dissertations

By the end of Fiscal Year 1991, the Air Force had identified 4,354 contaminated sites. Much like the 177 toxic sites at McClellan AFB, bases across the country and throughput the world are filled with chrome, lead, paint solvents and many other toxics that are rendering water supplies unusable and endangering the health of millions of people living in and around these bases. Air Force officials continue to identify contaminated sites with no end in sight. Since the cleanup of these toxic materials involves diverse, complex activities, the Air Force created the duty position of Remedial Project Manager to manage …

Pavement Drainage And Pavement Shoulder Joint Evaluation Numerical Analysis Of Infiltration And Drainage In Pavement Systems, Reynaldo David. Espinoza, Philippe L. Bourdeau, Thomas D. White

JTRP Technical Reports

The continuing loss of pavement performance observed in the U.S. transportation infrastructure system raises the issue of the subdrainage design. Experience with the Indiana highways indicates that the lack of adequa the sub-drainage is probably a major cause of pavement distress. In order to provide highway engineers with a methodology to analyze the water migration and drainage into pavement systems a new numerical model has been developed. The numerical scheme is a finite difference formulation of the equations of water flow in unsaturated porous media. The resulting system of equations used is nonlinear and state-of-the-art numerical techniques have been used …

Introduction To Leveling - A Training Guide For Road Maintenance Personnel In Indiana's Counties, Cities And Towns, Herpicc

Indiana Local Technical Assistance Program (LTAP) Publications

This booklet presents the basic concepts of leveling and is intended as a reference for those employees performing essential leveling operations for the construction of roads and drainage structures.

Bs News

Building Services Engineering

No abstract provided.

The Effect Of Cutout Dimensionality On The Collapse Characteristics Of Cylindrical Composite Shells Of Varying Thickness, John C. Del Barga

Theses and Dissertations

This study involved a numerical and experimental investigation of the (geometric instability of graphite/epoxy cylindrical panels with free vertical edges undergoing axial compression. Symmetric quasi-isotropic laminates with five different size centralized cutouts, were investigated for two axial lengths of panels and three thicknesses. The study compared experimental data to results from SHELL, a geometrically nonlinear finite-element program which incorporates a parabolic transverse shear strain distribution through the thickness. The research verified that the SHELL program will provide good predictions of the collapse characteristics of a panel with large cutouts of varying dimensions undergoing large displacements and rotations. The best correlation …

Comparison Of The Dynamic Behavior Of Composite Plates And Shells Incorporating Green's Strain Terms With The Von Karman And Donnell Models, Arthur E. Forral

Theses and Dissertations

The dynamic collapse behavior of thin, composite cylindrical shells subjected to transverse point loads is considered. The dynamic behavior of the undamped cylindrical shells of varying radii is analyzed with a finite element formulation that incorporates all nonlinear Green's strain terms in the in-plane directions; transverse strains are linear and vary parabolically through the shell thickness. This formulation is denoted as the simplified large displacement/rotation (SLR) theory. Graphical representations are used extensively to examine dynamic behaviors not noted in similar research that utilized the DSHELL finite element code. Composite plate behavior is also explored. Comparison of the higher-order formulations to …

Constructed Wetlands As An Innovative, Cost-Effective Solution For Wastewater Treatment In Small Communities, Christy Womack Vines

Honors Capstone Projects and Theses

No abstract provided.

Computer Program For Analysis Of Embankments With Tensile Elements, Mikhail E. Slepak, Tommy C. Hopkins

Kentucky Transportation Center Research Report

A generalized computer program for analyzing stability of earth structures reinforced with geosynthetics (geogrids, geotextiles etc.) was developed in this research study. The newly proposed computer program was built in such a way that a reinforced slope stability problem may be analyzed using a variety of limit equilibrium methods including Hopkins', Morgenstern and Price's, Bishop's methods, Raulin's perturbation method, as well as new perturbation methods proposed by the authors of this study. It was shown in the research study that two versions of the Bishop's method were possible in the case of reinforced analyses: the traditionally used version referred to …

A Summary Of Highway Revenues, Expenses And Distributions: 1986 Through 1993, Herpicc

Indiana Local Technical Assistance Program (LTAP) Publications

This report shows the history of receipts, expenses and distributions of revenues that provide funding to all local governments for highway, road and street work.

Visual Observations Of Parking And Driving Areas And Drainage Conditions On Colverfield Lane Fort Wright Trace, Fort Wright, Ky., David L. Allen

Kentucky Transportation Center Research Report

On September 30, 1993, the Condominium Council of Co-Owners of Fort Wright Trace in Fort Wright, Kentucky requested of the Director of the Kentucky Transportation Center that a member of his staff meet with them to review and visually inspect the drainage and pavement conditions in their community. The Head of the Pavements Section met with representatives of the Council on October 13, 1993 as a part of the Transportation Center's Technology Exchange Program.

A visual inspection was conducted of Cloverfield Lane and its associated parking areas beginning at the intersection of Cloverfield Lane and Castle Hill Lane and continuing …

S/O Modeling Technique For Optimal Containment Of Light Hydrocarbons In Contaminated Unconfined Aquifers, Grant S. Cooper Jr., Jagath J. Kaluarachchi, Richard C. Peralta

Civil and Environmental Engineering Faculty Publications

An innovative approach is presented to minimize pumping for immobilizing a floating plume of a light non-aqueous phase liquid (LNAPL). The best pumping strategy is determined to contain the free oil product and provide for gradient control of the water table. This approach combined detailed simulation, statistical analysis, and optimization. This modeling technique uses regression equations that describe system response to variable pumping stimuli. The regression equations were developed from analysis of systematically performed simulations of multiphase flow in an areal region of an unconfined aquifer. Simulations were performed using ARMOS, a finite element model. ARMOS can be used simulate …

Attachment Systems For Curtain Wall Construction And Maintenance Requirements, Peter S. Donaghy

Theses

Curtain Wall construction has become a familiar and widely used method for enclosing structures. Since the 1950's this type of enclosure has become increasingly the most popular choice of Designers and Builders. During this period of development, however, acceptable and uniform building standards have not evolved to create adequate quality control.

This thesis investigates some of the design requirements of Curtain Walls, in particular the attachment system, and the maintenance costs that are directly related to the attachment system and the consequences of such failures.

Seismic Code Analysis Of Buildings Without Locating Centers Of Rigidity, Rakesh K. Goel, Anil K. Chopra

Civil and Environmental Engineering

Static force procedures of most building codes require that the lateral earthquake force at each floor level of an asymmetric-plan building be applied eccentrically from the centers of rigidity. To implement such procedures, it seemed necessary in the past to determine the locations of the centers of rigidity, an often confusing and cumbersome process. This paper presents a new approach for code lateral force analysis of asymmetric-plan buildings without locating the centers of rigidity. This procedure combines the results from three static analyses, which can be implemented directly on most commercially available computer programs for analysis of multistory buidings. The …

Ole Miss Engineer 1993

Ole Miss Engineer

No abstract provided.

Bs News

Building Services Engineering

No abstract provided.

Field Performance Report On Corrugated Polyethylene Pipe On Ky 17 Kenton County, L. John Fleckenstein, David L. Allen

Kentucky Transportation Center Research Report

This report documents the installation and performance of corrugated smooth lined polyethylene pipe installed during construction of KY 17 in Kenton County. The majority of the pipe installed was N-12 pipe manufactured by Advanced Drainage Systems, Inc., and is designated as ADS N-12. ADS N-12 is a corrugated high-density polyethylene (HDPE) pipe. The pipe has a corrugated exterior for increased strength and a smooth interior to provide maximum flow capacity.

Sags in grade, misalignment, poor coupling, and vertical deformation were observed during visual inspections and do not appear to be a material related problem but are largely due to poor …

Evaluation Of Lime Stabilized Subgrade (Aa-19), Bobby W. Meade, David L. Allen

Kentucky Transportation Center Research Report

Construction of Section 19 of the Ashland-Alexandria Highway began in 1987. Because native soils have very low CBR values (1 to 3), it was decided to stabilize the soil subgrade with an application of 6% hydrated lime. The top 6 inches of the subgrade was to be stabilized. This process had not been previously used in Kentucky; and consequently, a research study was initiated to monitor this project. Objectives of the study were to monitor and document construction procedures, to determine the engineering characteristics of the treated subgrade through laboratory testing, and to report on the study findings. A substantial …

Survey Of The Impacts Of Environmental Regulations On State Highway Operations, Theodore Hopwood Ii, Christopher M. Oberst

Kentucky Transportation Center Research Report

In recent years, the transportation industry in Kentucky as represented by Kentuckians for Better Transportation (KBT) and the Kentucky Transportation Cabinet (KyTC), have expressed concern over the growing impact of environmental regulations upon transportation activities in the state. The imposition of environmental regulations has resulted in higher costs for new construction and maintenance on roads, project delays, scheduling and financing difficulties, and the creation of additional transportation agency bureaucracy to address environmental regulation mandates. In Kentucky, the impacts of those regulations have not been thoroughly assessed nor have the attendant costs been measured. Coinciding with that lack of information is …

Impacts Of The Extended-Weight Coal Haul Road System (Interim Report), Joseph D. Crabtree, Jerry G. Pigman, John A. Deacon, Kenneth R. Agent

Kentucky Transportation Center Research Report

The Extended-Weight Coal Haul Road System, created by Kentucky's Legislature in 1986, consists of all roads which carry over 50,000 tons of coal in a calendar year. Trucks hauling coal on this system are authorized to exceed normal weight limits through the payment of an annual decal fee. A research study was initiated in July of 1992 to analyze the impacts of the extended-weight system. This interim report, prepared after one year of a three-year study, describes the analyses performed thus far and presents preliminary findings, recommendations, and a discussion of future work.

Analyses in this report are based on: …

Appendix: List Of Participants [1993], Kentucky Transportation Center

Kentucky's Annual Forum on Transportation

No abstract provided.

Awards Luncheon, Don C. Kelly

Kentucky's Annual Forum on Transportation

No abstract provided.

Congestion Management At The Local Level, Leon Walden

Kentucky's Annual Forum on Transportation

No abstract provided.

State Management Systems Status, J. M. Yowell

Kentucky's Annual Forum on Transportation

No abstract provided.

Translating Vision Into Action Through Quality Management, Rodger B. Lewis

Kentucky's Annual Forum on Transportation

No abstract provided.

Partners In Intermodalism, Sue Jeffers

Kentucky's Annual Forum on Transportation

No abstract provided.

Privatization Of Transportation Functions, Merl M. Hackbart

Kentucky's Annual Forum on Transportation

No abstract provided.