Civil and Environmental Engineering Commons^™

Cost Effective Maintenance Contracting, Bobby W. Meade, David Q. Hunsucker

Kentucky Transportation Center Research Report

Increased emphasis on highway maintenance and the need to accomplish the maintenance programs as efficiently as possible, prompted this study. The objectives of the study addressed herein are the identification of maintenance activities performed by contract, determination of equivalent levels of service between contract performed and in-house performed activities, cost comparison of those activities, and recommendations to implement the findings.

Findings are that activities routinely performed by contract are cost efficient. A formal make-versus-buy decision making process should be developed. The process should be made available to District personnel and the make-versus-buy decision made at that level. Decision making processes …

Appendix: List Of Participants [1992], Kentucky Transportation Center

Kentucky's Annual Forum on Transportation

No abstract provided.

Transportation Of The Future And The Future Of Transportation, Lee T. Todd Jr.

Kentucky's Annual Forum on Transportation

No abstract provided.

Transportation Of The Future And The Future Of Transportation, John A. Deacon

Kentucky's Annual Forum on Transportation

No abstract provided.

Intermodalism: What It Is And How It Works. Transamerica Transportation Corridor Transportation Options For The Twenty-First Century, James L. Covil

Kentucky's Annual Forum on Transportation

No abstract provided.

Intermodalism: What It Is And How It Works. Intermodal Transportation: Past, Present, And Future, Benjamin J. Allen

Kentucky's Annual Forum on Transportation

No abstract provided.

Transportation: We Shape It And It Shapes Us, J. M. Yowell

Kentucky's Annual Forum on Transportation

No abstract provided.

Intermodal Surface Transportation Efficiency Act (Istea): A New Way Of Doing Business, James Q. Duane

Kentucky's Annual Forum on Transportation

No abstract provided.

Intermodal Surface Transportation Efficiency Act (Istea): A New Way Of Doing Business, Roland J. Mross

Kentucky's Annual Forum on Transportation

No abstract provided.

Intermodal Surface Transportation Efficiency Act (Istea): A New Way Of Doing Business, Douglas B. Ham

Kentucky's Annual Forum on Transportation

No abstract provided.

Intermodal Surface Transportation Efficiency Act (Istea): A New Way Of Doing Business, Eugene R. Mccormick

Kentucky's Annual Forum on Transportation

No abstract provided.

Understanding Transportation In The Commonwealth: How Decisions Of The Past Affect Us Today: Kentucky Overview, Calvin G. Grayson

Kentucky's Annual Forum on Transportation

No abstract provided.

Understanding Transportation In The Commonwealth: How Decisions Of The Past Affect Us Today: Industry Overview, James M. Wiseman

Kentucky's Annual Forum on Transportation

No abstract provided.

Understanding Transportation In The Commonwealth: How Decisions Of The Past Affect Us Today: National Overview, Lester P. Lamm

Kentucky's Annual Forum on Transportation

No abstract provided.

History Of Transportation In The Commonwealth, Ned Breathitt

Kentucky's Annual Forum on Transportation

No abstract provided.

Kentucky Transportation Hall Of Fame [1992], Kentucky Transportation Center

Kentucky's Annual Forum on Transportation

No abstract provided.

1992 Safety Belt Usage Survey And Evaluation Of Effectiveness In Kentucky, Kenneth R. Agent

Kentucky Transportation Center Research Report

The objective of the survey was to establish 1992 safety belt and child safety seat usage rates in Kentucky. Data were collected at 100 sites and combined based on vehicle miles travelled for a given type of highway, rural or urban location, and county population category. Also included in this report is an analysis of accident records evaluating the effectiveness of safety belts.

Statewide usage rates were 41 percent for drivers and front-seat passengers (over 19 years of age) and 62 percent for children under four years of age (front and rear seats). Driver usage rates increased in 1992 compared …

Analysis Of Traffic Accident Data In Kentucky (1987-1991), Kenneth R. Agent, Jerry G. Pigman

Kentucky Transportation Center Research Report

This report includes an analysis of traffic accident data in Kentucky tor the years of 1987-1991. A primary objective of this study was to determine average accident statistics for Kentucky highways. Average and critical number and rates of accidents were calculated for various types of highways in rural and urban areas. These data can be used in Kentucky's procedure to identify locations that have abnormal rates or numbers of accidents.

Another objective of this study was to provide data which can be used in the preparation of the problem identification portion of Kentucky's Annual Highway Safety Plan. County and city …

Performance Of A Modified Turned-Down Guardrail End Treatment 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 modified turned-down guardrail end treatment (Type 7) in traffic accidents. Data for a total of 67 accidents involving the modified turned-down guardrail end treatment were identified. Performance was classified as proper in 51 of the 61 accidents (84 percent) in which it was determined. In the majority of the accidents in which proper performance occurred, the vehicle either traveled onto the top at the guardrail beyond the breakaway section or broke through the breakaway posts and proceeded behind the guardrail.

The …

Design And Performance Of A Bituminous Surface Mixture Containing Bottom Ash Aggregate, David Q. Hunsucker

Kentucky Transportation Center Research Report

A one-mile experimental bituminous surface overlay was placed in October 1987 on State Route 3 in Lawrence County, Kentucky. The experimental section utilized bottom ash aggregate from the Kentucky Power Company's Big Sandy Power Plant, near Louisa, Kentucky. Bottom ashes are generally angular and have very porous surfaces. Approximately 539 tons of the experimental bituminous surface material, containing 40 percent bottom ash (dry weight), were placed. Reported herein are results of laboratory tests and performance evaluations of the experimental surface mixture.

Performance of the experimental bottom ash surface has been excellent. Skid resistance tests indicate the surface is highly skid …

Youth Needs And Assessment Survey, Kenneth R. Agent, Jerry G. Pigman

Kentucky Transportation Center Research Report

The characteristics of traffic accidents involving teenage (16 to 19 years of age) drivers are summarized in this report and compared to all accidents. This was accomplished through an analysis of statewide accident data for a three-year period (1989 through 1991). Counties having the highest overrepresentation of accidents involving teenage drivers were identified. The status of highway safety programs currently in place in school districts in Kentucky is presented. A survey was sent to 182 school districts in Kentucky with a 64 percent response rate obtained. Relevant literature was reviewed, and summary statements are given in the Appendix. This summary …

Experimental Road Base Construction Utilizing Atmospheric Fluidized Bed Combustion Residue, David Q. Hunsucker, R. Clark Graves

Kentucky Transportation Center Research Report

This report summarizes findings of laboratory and field trial evaluations of two experimental test sections constructed adjacent to one another. One experimental section contained a mixture of pulverized fuel ash, residue from an atmospheric fluidized bed combustion process, and limestone aggregate. The second section contained a similar mixture but included a small amount of Type Ill cement. Both experimental sections were constructed to a total nominal thickness of nine inches. The typical design section included six inches of the experimental mixtures, used as base materials, beneath three inches asphaltic concrete. A previous report documented construction of the test sections and …

Survey Of Current Bridge Painting Practices And Related Literature Search, Theodore Hopwood Ii, Christopher M. Oberst

Kentucky Transportation Center Research Report

A survey on current bridge painting practices was conducted. Questionnaires were sent to all 50 state highway agencies concerning their present bridge painting practices, changes in those practices that they anticipate due to environmental regulations, and new or experimental painting practices they are investigating. Forty-three responses were received. Those are collated and presented in the appendices along with comments of the responders.

A literature search was conducted on publications related to painting of steel structures (since 1987). Forty-nine documents were identified as being relevant to the topic. Those documents are listed in bibliographic form in the appendices.

Summary Of Results Of 1991 Field And Laboratory Evaluations Of Pavement Marking Materials, Kentucky Transportation Center

Kentucky Transportation Center Research Report

This report summarizes the results of data collected as part of the 1991 field and laboratory evaluations of pavement marking materials for the SASHTO Regional Test Facility.The purpose of the Regional Test Facility (RTF) is to minimize the amount of field and laboratory research testing of specific types of materials. This is accomplished by combining efforts in an organized manner to reduce the monetary and man-hour requirements of both the states and industry. A RTF for the twelve SASHTO states was approved at the 1988 SASHTO convention. The twelve SASHTO states are Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North …

Laboratory And Field Evaluations And Correlations Of Properties Of Pavement Components, David L. Allen, R. Clark Graves, L. John Fleckenstein

Kentucky Transportation Center Research Report

This report documents the selection and sampling of 21 long-term pavement performance testing sites. Seven of those sites were also chosen to be a part of the LTPP portion of the Strategic Highway Research Program (SHRP). All sites were sampled in accordance with SHRP protocol and procedures.

The report includes three years of visual distress data and pavement deflection data obtained by a Road Rater. There were wide variabilities in backcalculated subgrade moduli and asphaltic concrete moduli within each 500-foot test section.

Laboratory resilient modulus tests were performed on undisturbed samples of the subgrade and asphaltic concrete cores. Again, there …

Review Of Highway Cost Allocation Methodologies, John A. Deacon, Jerry G. Pigman, Nikiforos Stamatiadis

Kentucky Transportation Center Research Report

The objectives of the current cost allocation study, the fifth in a series begun in 1982, include the following: 1) to evaluate current cost allocation methodologies and identify possible changes to Kentucky practices; and 2) to determine the 1991 fiscal year levels of cost responsibility and revenue contribution for each of several classes of highway users. Additional objectives include an evaluation of the equity of tax proposals advanced by the Kentucky Motor Transport Association, a preliminary determination of the revenue and cost implications of the Extended-Weight Coal Haul System, and an evaluation of the efficiency with which certain highway user …

Kentucky Rock Asphalt (Kyrock) Road Surfacing Material: Preliminary Investigation, Jerry G. Rose

Kentucky Transportation Center Research Report

This report documents a preliminary investigation of Kentucky Rock Asphalt (Kyrock) - as a road surfacing material. The indigenous bituminous impregnated sandstone was widely used as a premium quality skid resistant surfacing material during the first half of this century. Redevelopment efforts gained momentum during the 1960's, but for the last twenty years interest has waned.

Laboratory tests were conducted on the Kyrock to determine its applicability in bituminous surface mixes by blending Kyrock with virgin materials in a similar manner as adding recycled asphalt pavement. The findings indicated it was feasible to blend Kyrock and a continuation proposal was …

Recycled Materials In Kentucky Highway Construction, David Q. Hunsucker, Laura Whayne

Kentucky Transportation Center Research Report

The objectives of this study were to identify and list waste materials which should be recycled to reduce solid waste disposal; report current and past efforts of the Kentucky Department of Highways to utilize recycled and waste materials; determine through a thorough literature search and review, the efforts of other local, state, national and international transportation agencies to utilize recycled materials; and, present preliminary recommendations listing areas where additional recycling efforts appear promising, feasible and needed.

Waste materials that were identified which could be recycled to reduce solid waste disposal included demolition waste (building rubble, recycled concrete pavement, recycled asphalt …

Pavement Deflection Evaluations, R. Clark Graves, David L. Allen

Kentucky Transportation Center Research Report

In this study a procedure has been developed to evaluate the structural condition of pavements using Road Rater deflection measurements. These procedures compare actual field deflections with deflections calculated by the Chevron N-Layer linear elastic computer program. The results obtained from these procedures are the layer moduli of the pavement materials. Procedures have been developed for asphaltic concrete pavements and composite pavements, including broken and non-broken concrete layers. This report also contains a comparison of structural overlay determined using the results of the new procedure, with overlays calculated using results from the 2-3 Projected procedure currently used by the Pavement …

Roadway Related Tort Liability And Risk Management: 2nd Edition, Daniel S. Turner, Kenneth R. Agent

Kentucky Transportation Center Research Report

This training material has been prepared to address the tort liability problems faced by the Kentucky Transportation Cabinet and Kentucky local governments. The workbook defines the problem by reviewing the national picture of growing numbers of suits and escalating financial losses from suits against highway agencies.

The workbook also sets out solutions, and reviews actions which can decrease the exposure of highway agencies to these suits. This risk management concept is emphasized throughout the workbook.