Engineering Commons^™

Evaluation Of Methods For Predicting Durability Characteristics Of Argillaceous Carbonate Rock, Abdul Shakoor

JTRP Technical Reports

No abstract provided.

H & V News

Building Services Engineering

No abstract provided.

Coordinating Hydrologic And Legal Systems For Groundwater Management, Richard C. Peralta, Ann W. Peralta, Les E. Mack

Civil and Environmental Engineering Faculty Publications

A procedure is presented for developing a hydrologically and legally feasible groundwater management strategy for an area in a "reasonable use" state. Characteristics of the strategy are: Sustained yield, and drought and litigation protection.

Roadside Vegetation Establishment By Seeding Of Herbaceous Species Under Suboptimal Conditions : Interim Report, John B. Masiunas, Philip L. Carpenter

JTRP Technical Reports

No abstract provided.

Highway Finance — 1981 Update, Jean E. Hittle

Indiana Local Technical Assistance Program (LTAP) Publications

This Bulletin --- "HIGHWAY FINANCE - Update 1981" --- has been compiled to provide Local Road and Street Officials with a year-end report on the results of the 1981 gas tax legislation, as well as an updated estimate of anticipated revenue for Calendar Year 1982.

Total highway-user revenue for 1981 was up some $39 million over 1980 totals; this is about 6% over the totals forecast back in July. And on the basis of the 1981 experience, the 1982 total revenue estimate is up to $393 million -- a $23 million increase over the July forecast. If the 1982 experience …

Energy Conservation: Impact On Indoor Air, Purush K. Terkonda

UMR-DNR Conference on Energy

No abstract provided.

Coal, Energy And The Environment, Bobby G. Wixson, Betsy T. Kagey

UMR-DNR Conference on Energy

No abstract provided.

Propagation Of Traffic Noise, Kenneth R. Agent, Charles V. Zegeer

Kentucky Transportation Center Research Report

The effects of various traffic, ground cover, and geometric conditions on traffic noise propagation were evaluated in this study. There were two general methods of data collection. The first used as many as four sound-level meters and graphic-level recorders to take simultaneous recordings of the traffic stream; the second method involved a constant noise source using a random noise generator.

The L₁₀ noise level reduction per doubling of distance increased substantially when the traffic volume was less than 1,000 vehicles per hour. Wind speed and direction had a large effect on noise propagation. Ground cover also had a definite …

Development Of A Thickness Design System For Bituminous Concrete Pavements, Herbert F. Southgate, Robert C. Deen, James H. Havens

Kentucky Transportation Center Research Report

A pavement provides a functional surface for safe operation of a vehicle. The operator or passenger of a vehicle does not particularly care about the material from which the pavement structure is constructed. However, they are sensitive to such factors as speed, safety (skid resistance), and comfort (roughness). One aspect of pavement design is the selection of the thickness of the pavement and its various components sufficient to support vehicular loadings and to transfer those loadings through successive layers of the pavement - surface, base, and subgrade - to the soil on which the pavement rests. The structural design of …

Evaluation Of Pavement Tape As Lane Delineation, Jerry G. Pigman, Kenneth R. Agent

Kentucky Transportation Center Research Report

This study involved the field testing of four types of pavement tapes, all manufactured by the 3M Company. The tapes evaluated included Scotchlane, Stamark Removable, Stamark, and an experimental tape. The experimental tape had an extremely high initial reflectivity but poor durability, which would preclude use in its present form. The remaining tapes exhibited good durability when used as lanelines and edgelines. The Scotchlane tape exhibited the best long-term reflectivity. The Stamark tape does not provide sufficient reflectivity and could not be used in areas where delineation would be critical. The Stamark Removable tape was easily removed manually after one …

H & V News

Building Services Engineering

No abstract provided.

H & V News

Building Services Engineering

No abstract provided.

Experimental Determination Of Post-Buckling Performance Of Steel Angles, Rupasiri Purasinghe

Dissertations and Theses

An experimental testing program was conducted to determine the compression member performance in post-buckling region. These results are compared with an analytical computer program developed by Portland State University under Bonneville Power Administration Contract 79-80BP 24005. The paper presents the sensitivity of the performance of single angle compression members to various parameters such as length to radius of gyration ratio, eccentricity, end conditions and yield stress. The effect of local buckling on long member performance is also documented.

H & V News

Building Services Engineering

No abstract provided.

Identification, Analysis, And Correction Of High-Accident Locations In Kentucky, Charles V. Zegeer, Kenneth R. Agent, Ronalds L. Rizenbergs

Kentucky Transportation Center Research Report

The first step in the highway safety improvement process involves reporting and summarizing accidents by location. Once the high-accident locations are identified, field investigations and analysis follow. Locations are ranked on the basis of potential for accident reduction. Safety improvements are then scheduled and implemented. Finally, improvements are evaluated in terms of accident reduction.

This report compiles, in detail, the process involved in arriving at safety improvements in the high-accident spot-improvement program. References are made to information and methodologies developed in earlier reports by the Division of Research of the Kentucky Department of Transportation. Most of the background information and …

Design Guide For Bituminous Concrete Pavement Structures, James H. Havens, Robert C. Deen, Herbert F. Southgate

Kentucky Transportation Center Research Report

To determine pavement thicknesses from design charts and tables, it is necessary to know only the EAL's (equivalent axle loads), the CBR of the subgrade soil, and the modulus of elasticity of the bituminous concrete. Charts permit selection of pavement structures employing alternative proportions of bituminous concrete and crushed stone base. Total thickness varies according to the proportions chosen. It is implicitly intended that the selection of alternative structures be based on engineering considerations, such as 1. estimates of comparative construction costs, 2. compatibility with cross section template and shoulder designs, 3. uniformity or standardization of design practices, 4. highway …

Analysis Of Time-Deflection Consolidation Data, E. Gregory Mcnulty

Kentucky Transportation Center Research Report

A computerized statistical curve-fitting algorithm has been developed for determining the time-dependent properties of conventional (load-incremental) consolidation test data. Analytical models of the graphical methods developed by Taylor and Casagrande and of the Naylor-Doran method of successive approximations determtne values for the coefficients of consolidation, permeability, and the values of deflection corresponding to the begimltng and endtng of primary consolidation. The coefficients of volume change and secondary compression are also calculated. A modified statistical definition is used to select the linear portions of the data curves and is applicable to other data-fitting problems. After the Naylor-Doran method has been used, …

Structural Capacity Of In-Place Asphaltic Concrete Pavements From Dynamic Deflections, Herbert F. Southgate, Gary W. Sharpe, Robert C. Deen, James H. Havens

Kentucky Transportation Center Research Report

The proper design of asphaltic overlay thicknesses involves four major factors; the in-place modulus of the subgrade, an estimate of the structural capacity of the existing pavement, estimates of the future traffic expressed as equivalent axleloads and required or desired design levels, and a thickness design procedure. This paper deals with estimating the in-place subgrade modulus and the remaining load-carrying capacity of the existing pavement. The method presented herein is valid for any Road Rater or other dynamic tester such as the Dynaflect. This procedure was based upon a 600-pound (272.4-kg) peak-to-peak dynamic load applied at a rate of 25 …

Identification Of Kentucky Shales, Tommy C. Hopkins, Brian C. Gilpin

Kentucky Transportation Center Research Report

Results obtained from a series of engineering tests performed on 40 different types of shales are summarized and discussed. Both hard and soft shales, as well as shales having well-documented histories of involvement in highway embankment failures and shales having little known involvement, were tested. A major portion of the report examines the suitability of the slake-durability tests, originally devised by Franklin-Chandra of England, as a means of broadly characterizing the engineering properties of Kentucky shales. Results obtained from ten different slake-durability testing procedures, which include procedures proposed by Franklin and Chandra and others as well as procedures devised during …

H & V News

Building Services Engineering

No abstract provided.

Evaluation Of Rumble Strip Design And Usage, Jerry G. Pigman, Michael M. Barclay

Kentucky Transportation Center Research Report

The objective of this study was to investigate the following aspects of rumble strips: the optimum height and width of elements in a rumble strip pattern, spacing between them, the effect of grouping elements into sets, the effects of speed on design criteria, and driver reaction to the audible and physical stimuli produced by rumble strips. A survey of design and usage in other states was conducted; and the results show that even though 35 of the 44 responding states have installed rumble strips, only five have warrants for usage.

Two types of rumble strip design were evaluated -- one …

Evaluation Of Watertight Bridge Expansion Joints, Wm. Vernon Azevedo

Kentucky Transportation Center Research Report

Engineers have long recognized the importance of bridge expansion joints. The inadequacy in design of such joints has also been realized. Proprietary products are now available which may eliminate well-documented problems associated with bridge expansion.

The objective of this study was to evaluate the field performance of such products.

Vehicle Noise Emission Levels In Kentucky, Kenneth R. Agent

Kentucky Transportation Center Research Report

The objectives of this study were to update individual vehicle noise data taken in previous years in Kentucky and to determine reference mean energy emission levels for Kentucky vehicles for use in the SNAP 1 noise prediction procedure.

Comparison of Kentucky and nationwide emission levels showed a close agreement for medium and heavy trucks; however, automobile noise levels in Kentucky were higher than nationwide levels. An analysis of emission levels of the various vehicle types showed that a fourth category, light trucks, may need to be added. The Kentucky emission levels were input into SNAP 1 in place of the …

H & V News

Building Services Engineering

No abstract provided.

Identification And Rehabilitation Of High-Risk Drivers, Kenneth R. Agent

Kentucky Transportation Center Research Report

This report deals with the identification and rehabilitation of high-risk drivers. Methods used to identify negligent drivers were examined. Kentucky's point system was compared to those tn other states. The consequences of drivers attending driverimprovement clinics were studied by analyzing driving records.

The analysis showed that accident involvement was directly related to the accumulation of penalty points and number of violations. Definite relationships were found between several specific types of violations and accidents.

A very significant improvement in driving records was noted for those drivers who completed a driver-improvement clinic; however, a similar improvement occurred for drivers eligible for the …

Ohio River Suspension Bridges: An Inspection Report, Theodore Hopwood Ii

Kentucky Transportation Center Research Report

For many years, suspension bridges have been employed to economic advantage where long uninterrupted spans were required. While they have been supplanted for most common applications by cantilever and arch bridges in the United States, suspension bridges are a valid design type. Two American suspension bridges have been in service for over 100 years. A new form of suspension bridge, the cable-stayed bridge, is widely used in Europe and is expected to be as popular in the United States.

The key to the success of suspension bridges lies in the use of high-strength wires that are consolidated into the main …

Traffic Accidents In Kentucky (1978), Kenneth R. Agent

Kentucky Transportation Center Research Report

Highway locations having an abnormal history of accidents should be identifiable in some way. Average and critical accident numbers and rates must be known for similar locations. Averages have been determined previously for rural highways, but it is necessary to update those numbers and to determine rates for urban areas. A detailed picture of traffic accidents in Kentucky in 1978 is presented.

Average rates in terms of accidents per 100 million vehicle-miles (160 million vehicle-kilometers) were calculated for various classifications of rural and urban highways. Also, average rates in terms of accidents per million vehicles were determined for 0.3-mile (0.48-km) …

Evaluation Of Raised Pavement Markers In Kentucky: Statewide Installations; 1975-1979, Jerry G. Pigman, Kenneth R. Agent, Rolands L. Rizenbergs

Kentucky Transportation Center Research Report

Raised markers have become commonplace in delineation on highways in states where snowfall is minimal and snowplows are not needed. They have proven to be especially effective for wet, nighttime, and other poor visibility conditions when paint stripes are least effective. In Kentucky, over one million raised markers have been installed and damage from snowplowing has been significant during some of the more severe winters. As a result of costs associated with replacing damaged markers and requirements of the Pavement Marking Demonstration Program, an evaluation of all installations was undertaken.

Between 1975 and 1979, a total of 1,082,250 markers were …

Strain-Rate Selection In The Constant-Rate-Of-Strain Consolidation Test, C. Thomas Gorman

Kentucky Transportation Center Research Report

Constant-rate-of-strain (CRS) consolidation tests were performed on remolded kaolinite specimens. The effect of strain rate on CRS test data is shown. A relation between soil parameters and strain rate was developed and used to formulate a strain-rate selection procedure. The fmal selectlon procedure is based on liquid limit and initial degree of saturation of the specimen and is presented in graphical form. The procedure is applicable to all types of soils.

H & V News

Building Services Engineering

No abstract provided.