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Before-And-After Analysis Of Safety Improvements On I 75 In Northern Kentucky, Jerry G. Pigman

Kentucky Transportation Center Research Report

In September 1971, the U.S. House of Representatives Subcommittee on Investigations and Oversight met in Covington, Kentucky, to discuss the accident experience and remedial procedures taken to alleviate the frequency of accidents occurring on approximately five miles of I 75 just south of Cincinnati. This section of highway had been and was continuing to be the subject of several safety improvements. The objective of this study was to conduct before-and-after investigations of the effectiveness of the following safety improvement projects: (1) five variable message signs within a two-mile section, (2) a New Jersey-type median barrier wall extending approximately four miles, …

A Rock Evaluation Schema For Transporting Planning In Kentucky, C. D. Tockstein, M. W. Palmer

Kentucky Transportation Center Research Report

The initial goal was to devise an engineering classification system for intact rock samples based on simple index tests which could be used to categorize Kentucky surface and near-surface rock types and assist Kentucky Department of Transportation personnel in planning for transportation facilities. While conducting the literature survey, several facts become apparent:

1. a large number of rock classification systems, geologic and technical, general and specific, already existed;
2. an equally large number of index tests had been devised; and
3. there was a lack of communication among those involved in specialized areas of rock-related work (geologists, civil engineers, mining engineers, etc.), and, …

Loads On Box Culverts Under High Embankments, Harry F. Girdler

Kentucky Transportation Center Research Report

The structural design of culverts requires a reliable estimate of the earth pressures which will come to bear on the structure during and after construction of the embankment. The actual bearing pressure at a given time and under various conditions of differential settlement may be greater or less than the deadload of the fill or embankment over the structure. This report describes the instrumentation and construction of three box culverts designed by the imperfect trench method. A total of 42 Carlson earth pressure cells were installed in conjunction with strain gages and settlement measuring devices, including inverted settlement plates and …

Relationships Between Roadway Geometrics And Accidents (An Analysis Of Kentucky Records), Kenneth R. Agent

Kentucky Transportation Center Research Report

Statewide average and critical rates of accidents were determined from 1970-1972 Kentucky accident records for each type of rural highway. Four-lane undivided highways had the highest average accident rate; parkways (toll roads) had the lowest rate. The severity of accidents was related to types of accidents, highways, and traffic control and to safety belt usage. Accidents involving pedestrians were the most severe types; single-vehicle accidents ranked next highest in severity. Excluding accidents at railroad crossings, accidents which occurred on curves had the highest severity index. The use of safety belts was associated with reduced severity.

Dynamic Childbirth Simulator For Teaching Maternity Patient Care, Charles F. Knapp, George S. Eades

Biomedical Engineering Faculty Patents

A programmable patient simulator for teaching maternity patient care includes a life size manikin with a pelvis, vaginal canal, uterus, placenta, umbilical cord, and a fetal doll from which heart sounds are emitted. A programmable electro-pneumatic system controls the simulated uterine contractions, position of the uterus, rupture of membranes, expulsion of fetal doll, and fetal heart rate during labor and delivery sequence.

Development Of Prediction Relationships For Water Requirements With Irrigation Cooling, Billy J. Barfield, John N. Walker, F. A. Payne

KWRRI Research Reports

A model for predicting leaf temperatures during an off-on mist cycle is presented. The model uses a combination of energy budget and aerodynamic techniques. The model was tested for dry leaf temperature and evapotranspiration predictions using average hourly data from Arizona. The accuracy was good. It was also tested for dry leaf temperature predictions using two to three minute data with a widely varying net radiation. When reasonable values of stomatal resistance were used, the agreement was again good.

The model was tested for prediction of wet leaf temperature prediction with a ten minute on, fifty minute off mist irrigation …

Raised Pavement Markers As A Traffic Control Measure At Lane Drops [No. 418], Jerry G. Pigman, Kenneth R. Agent

Kentucky Transportation Center Research Report

Raised pavement markers are an effective means of reducing erratic movements at lane-drop locations, particularly under nighttime driving conditions. The cost of raised pavement markers and their installation is nominal (approximately $150 per lane-drop location). It is recommended that raised pavement markers be installed at other lane-drop locations. Markers installed at locations described in this study have not been in place for a sufficient time to determine their durability; however, reports from other states indicate their durability is sufficient to render them economical. If raised pavement markers are installed routinely, steps should be taken to insure they are not damaged …

Raised Pavement Markers As A Traffic Control Measure At Lane Drops [No. 384], Jerry G. Pigman, Kenneth R. Agent

Kentucky Transportation Center Research Report

Raised pavement markers are an effective means of reducing erratic movements at lane-drop locations, particularly under nighttime driving conditions. The cost of raised pavement markers and their installation is nominal ($150 per location). It is recommended that raised pavement markers be installed at other lane-drop locations. Markers installed at locations described in this study have not been in place for a sufficient time to determine their durability; however, reports from other states indicate their durability is sufficient to render them economical. If raised pavement markers are installed routinely, steps should be taken to insure they are not damaged by snowplow …

Bulletin Of The University Of Kentucky College Of Law – 1974-1975, University Of Kentucky College Of Law

College of Law Bulletins

The Bulletin of the University of Kentucky College of Law served numerous purposes, including: a course catalog, a roster of students, a roster of professors, an academic calendar, a listing of special events and lectures, academic policies, admission requirements, graduation requirements, and various other policies and benefits governing student life.

Porous Sand-Asphalt Mixtures, James H. Havens

Kentucky Transportation Center Research Report

Size is relative. Densely graded sand-asphalts are relatively similar to conventional, bituminous concretes. Porous sand-asphalts possess the same attributes as other porous, bituminous mixtures. Surely, sand-asphalt mixtures, can be designed to be as porous as the so-called, open-graded plantmix seals. Particle shape and texture otherwise define skid-resistance. Stability remains an assurance against scaling. Stability is assured by maximum utilization of filler-bitumen ratio and the stiffness of asphalt cement.

Recommendations For Implementation Of Uniform Project Identification From The Upi Task Force, Herbert F. Southgate

Kentucky Transportation Center Research Report

For years project identifications have been based upon county, section, subsection, and phase of work. While this system worked well in the beginning, overlay constructions, widening efforts, etc. have caused overlapping of projects to the point that identification of a given portion of a highway has become very difficult. Furthermore, each of the many separate phases of work has its own project number and may not be so readily identifiable as the succeeding work phase.

Management came to realize there was a need for a numbering identification system that would be readily understandable. The direct result was the development of …

To Copy What Is Right And True Or The Liability Of The Official Court Reporter Who Does Not, Arnold Taylor

Kentucky Law Journal

No abstract provided.

The New Chastity And Other Arguments Against Women's Liberation By Midge Decter, Susan Grossman Alexander

Kentucky Law Journal

No abstract provided.

Kentucky's Experience With The Broad Form Deed, James K. Caudill

Kentucky Law Journal

No abstract provided.

Gift And Leaseback: Planning Perspectives In An Unlegislated Field, Charles J. Lavelle

Kentucky Law Journal

No abstract provided.

Trial Diplomacy By Alan E. Morrill, Daniel G. Moriarty

Kentucky Law Journal

No abstract provided.

Kentucky's Future Need For Attorneys, Leslie W. Abramson

Kentucky Law Journal

No abstract provided.

Long Overdue-Process: California And The Lay Judge, Katherine R. Lewis

Kentucky Law Journal

No abstract provided.

Measuring The Intangible Values Of Natural Streams, Part Ii, John A. Dearinger, George M. Woolwine, Charles R. Scroggin, Daniel R. Dolan, James S. Calvin

KWRRI Research Reports

This report describes the work done during Part II of a project which had as its aim the development of a way to quantify those intangible values peculiar to a small stream and its watershed. Part I was concerned with an application of the "uniqueness concept" in the evaluation of fifty-eight Kentucky streams. The results of this effort are in Report #40, U. K. Water Resources Institute (1971).

During the second part of the project:

1. A method was developed whereby peoples' preferences for natural landscapes could be measured. The method utilized projected color slides and a rating system based on …

Traffic Control For Maintenance On High-Speed Highways, William M. Seymour, Robert C. Deen, James H. Havens

Kentucky Transportation Center Research Report

Observations were first made at lane closures on interstate highways where yellow warning signs were erected routinely in conjunction with contract work. Later data provided direct comparison between new yellow and new orange signs. One sign scheme was used throughout the study. Driver obedience improved when new signs of either color were used; this finding implies that signs should always be maintained in good condition. Orange signs were slightly more effective than yellow signs in reducing traffic conflicts and merges near the traffic cones. Results of the study tend to support the adoption of orange as the standard color for …

Auto-Utility Trailer Combinations On Rural Highways In Kentucky, Bruce S. Siria, Robert C. Deen

Kentucky Transportation Center Research Report

An analysis of accident records indicated that auto-utility trailer (A-UT) combinations are involved in a disproportionately high number of traffic mishaps. Locations which have a history of accidents involving A-UT vehicles indicated that differential crosswinds and unanticipated driving maneuvers contribute to the driver's loss of control. A-UT combinations contributed to the fatigue loss in pavement life approximately 50 percent as much as single-unit, two-axle, six-tire trucks (per vehicle). In general, this vehicle type constituted approximately three percent of the total traffic stream. Analysis of speed distributions indicated an equivalency factor for A-UT combinations equal to that for trucks for similar …

The Creep Response Of Cohesive Soils: A Method Of Design Using Rheological Strength Parameters, David L. Allen

Kentucky Transportation Center Research Report

The creep response of four remolded soils and undisturbed soils from two landslide sites is presented. A method for obtaining the yield stress of soil from creep test data is presented and discussed. "Viscosity diagrams", showing the location of the yield stress is approximately 50 percent of peak stress, were obtained from conventional triaxial tests. There is more scatter in data from undisturbed soils than in data from remolded soils. Mohr's failure envelopes, constructed from yield stress data, give internal friction angles having values from approximately five to ten degrees. Strength data, calculated indirectly from peak relaxation modulus, are also …

Social Costs And Benefits Of Water Resources Construction, Rabel J. Burdge, K. Sue Johnson

KWRRI Research Reports

This report analyzes and describes the process of relocating individuals and families who must move due to reservoir construction in Kentucky utilizing data collected in previous research. These data come from four separate studies: a study of community attitudes toward reservoir construction (Johnson county where the Paintsville reservoir is to be constructed), interviews with people who are slated for relocation when the Taylorsville reservoir is constructed, and two sets of interviews with people who have already been relocated due to reservoir construction (Cave Run and Carr Fork).

Psychological, social, economic and material costs and benefits associated with forced relocation are …

A Detailed Investigation Of The Sociological, Economic, And Ecological Aspects Of Proposed Reservoir Sites In The Salt River Basin Of Kentucky, Stuart E. Neff, Louis A. Krumholz, John R. Baker, Daryl E. Jennings, Andrew C. Miller, Jerry S. Parsons, Vincent H. Resh, David S. White

KWRRI Research Reports

Samples of water, bottom fauna, and fishes were collected from 66 stations in the Salt River and one of its principal tributaries, the Beech Fork and its tributary, the Chaplin River, Kentucky. Precipitation ranged from 38.86 inches (1969) to 58.04 inches (1970), an increase of nearly 50 percent with marked fluctuations in discharge. Intensive comparisons of phosphates, sulfates, specific conductance, total alkalinity, total hardness, and turbidity showed the streams to be relatively clean and healthy. Nearly 300 different kinds of benthic organisms and other macroinvertebrates have been collected and identified from the basin. Detailed studies of caddisflies and stream drift …

Traffic Accident Reporting In Kentucky, Donald R. Herd

Kentucky Transportation Center Research Report

This study reviews the organizational structure and processing procedures used in accident surveillance. Consideration was given to the techniques that various state governmental agencies use in their analysis of accident reports and statistics. It was concluded that Kentucky should enact uniform accident reporting legislation. A standard form should be prescribed for use by law enforcement agencies in complying with the reporting requirement. The creation of an Accident Records Unit to receive, process, and statistically analyze the reports is recommended.

Evaluation Of The Traffic Noise Prediction Procedure, Kenneth R. Agent, Charles V. Zegeer

Kentucky Transportation Center Research Report

Approximately 270 noise-level recordings were obtained at 39 highway sites and compared with the noise-level predictions obtained by the procedure outlined in NCHRP Report 117. The measured noise levels were computed in terms of the A-weighted L₁₀ value (level exceeded 10 percent of time) and then compared to the predicted noise levels. A significant discrepancy was found between predicted and measured noise levels; generally, the predicted values exceeded the measured values. Average error per location was 4.8 dBA; the maximum error was 13 dBA. A nomograph was devised to correct the predicted value; this nomograph involves observer-to-roadway distances, truck …

Sociocultural Impact Of Reservoirs On Local Government Institutions, Philip Drucker, Jerry Eugene Clark, Lesker Dianne Smith

KWRRI Research Reports

This study of the probable sociocultural impact of a proposed reservoir in central Kentucky on the institutions of local governments of a community adjacent to the reservoir utilizes anthropological concepts of social values and cultural and social change as well as anthropological research techniques. Data on observed impact on the same institutions in communities adjacent to two recently completed Kentucky reservoirs permit inferences as to probable directions and extent of reservoir-related change. Specific aspects of impact considered include: effects of reduction of the county tax base due to Federal acquisition of lands, including necessity for increased severity of taxes and …

Accidents On Rural Interstate And Parkway Roads And Their Relation To Pavement Friction, Rolands L. Rizenbergs, James L. Burchett, Cass T. Napier

Kentucky Transportation Center Research Report

Friction measurements were made with a skid trailer at 70 mph (31 m/s) on 770 miles (1240 km) of rural, four-lane, controlled-access routes on the interstate and parkway systems in Kentucky. Each construction project was treated as a test section. Accident experience, friction measurements, and traffic volumes were obtained for each. Various relationships between wet-weather accidents and skid resistance were analyzed. The expression of accident occurrence which correlated best with skid and slip resistance was wet-weather accidents per 100 million vehicle miles. Accidents increased greatly as Skid Numbers (70 mph or 31 m/s) decreased from 27 ± 1. Analysis of …

Non-Transposing Mute, Benjamin R. Gossick, Karl A. Schneider

Electrical and Computer Engineering Faculty Patents

A non-transposing mute having a metallic hemispherical resonator with a hollow acoustic filter attached thereto is provided for detachably fitting upon the rim of a brass musical instrument. A variety of tonal quality is available by choice of the particular filter selected by the musician.

Minimum Cost Design Of Water Distribution Systems, Don J. Wood, C. O. Charles

KWRRI Research Reports

The objective of this study was to develop the analytical tools and procedures for minimum cost design of water distribution systems. Both analog and digital means of carrying out pressure and flow calculations were developed. As a result of this effort, digital programs for pressure and flow calculations in water distribution systems were written and have been widely distributed to practicing engineers. One procedure is based on a direct solution of the basic system equations using a linearization scheme and has several advantages over conventional techniques such as the Hardy Cross method. These include avoiding the need to initially balance …