Engineering Commons^™

Development Of Guidelines And Performance For Asphalt Concrete Containing Recycled Rubber, Kamyar C. Mahboub, Donn E. Hancher

Kentucky Transportation Center Research Report

The primary objective of this study was to investigate the feasibility of implementation of the crumb rubber technology in Kentucky. The impetus for this study was provided by the Intermodal Surface Transportation Efficiency Act of 1991 (lSTEA).

This study included an overview of existing literature on the subject from an implementation point of view for Kentucky's conditions. Upon completion of this phase of the study, guidelines were developed by the KTC research team and were submitted to the Transportation Cabinet for field implementation of the crumb rubber modifier (CRM) technology in Kentucky. From the ease of implementation point of view, …

Evaluation Of Change Interval Treatments For Traffic Signals At High-Speed Intersections, Kenneth R. Agent, Jerry G. Pigman

Kentucky Transportation Center Research Report

A large number of traffic accidents at signalized intersections on high-speed roadways occur during or just after the change interval. The green extension system (GES) has been used extensively in Kentucky as a method of alleviating the problem related to the dilemma zone. An alternate method of handling this problem involves warning drivers that the signal indication is about to change from green to red using advance warning flashers (AWF). The objectives of this study were: 1) to evaluate the alternative methods (GES or AWF) which can be used to lessen the problem associated with the dilemma zone which occurs …

Examination Of Concrete Cores From Lowe’S Store In Bowling Green, David L. Allen, L. John Fleckenstein

Kentucky Transportation Center Research Report

The Kentucky Transportation Center was requested by Mr. Tom Brock, Vice President of McWhorter and Company, Inc., to examine cores obtained from a PCC floor slab of a Lowe's store in Bowling Green, Kentucky. From a telephone conversation with Mr. Brock, is was our understanding that a large portion of the surface of the floor slab was scaling and becoming detached. This apparently involved approximately the top 118 inch of the slab.

Nine cores were delivered to our laboratories. They were obtained at the locations shown in the floor map included in Appendix A. Those nine cores are shown in …

Use Of Flowable Fill (Clsm) For Trench Backfill, Bobby W. Meade, David Q. Hunsucker, Michael D. Stone

Kentucky Transportation Center Research Report

Controlled Low Strength Material (CLSM), commonly referred to as flowable fill, has been used for years as a trench backfill for utility repairs in Kentucky, and is now being used by the Kentucky Department of Highways (KDOH) on a limited basis. Flowable fill, when used as trench backfill, typically consists of natural sand, fly ash, cement, and water with a design compressive strength of 50 to 100 psi at 28 days. Flowable fill was used on two KDOH projects in 1991. One project was new construction in the widening and realignment of Breckinridge Lane in Louisville and the other was …

Analytical And Simulation Models Of Weaving Area Operations Under Non-Freeway Conditions, Muhammad Shahid Iqbal

Dissertations

The Highway Capacity Manual covers adequately the operation of weaving areas on freeways. Weaving on non-freeway facilities, however, has not been addressed as yet. This research effort presents a state-of-the-art procedural analytical approach and simulation models for the analysis of the level of service and operation of non-freeway weaving areas. Weaving under non-freeway conditions is classified into two broad categories; basic weave and ramp weave. The analytical models for these two weaving categories are calibrated and validated based on data obtained from several sites selected in the states of New Jersey and New York. New level of service criteria are …

A Gis Based Multi-Modal Multiple Optimal Path Transit Advanced Traveler Information System, Nicholas A. Koncz

Theses

A method for the design and use of a Transit Advanced Traveler Information System (TATIS) using an off-the-shelf Geographic Information System (GIS) is developed in this thesis. The research design included: 1) representing multi-modal transit networks in a digital form with schedule databases; 2) development of a multiple "optimal" path algorithm that takes into account walking transfers using published time schedules; 3) incorporating user preferences and penalties in the algorithm; 4) development of a user-interface with suitable output capabilities; 5) using the prototype for sample inquiries giving performance measures.

This prototype was developed using the Arc/Info GIS developed by ESRI, …

Analysis Of Motor Vehicle-Deer Accidents In Kentucky, Kenneth R. Agent

Kentucky Transportation Center Research Report

An analysis of motor vehicle-deer (deer) accidents for the five-year period of 1989 through 1993 was conducted. There was an average of about 2,800 deer accidents per year. This type of accident was generally not severe with almost 96 percent property-damage-only accidents. Trends were noted in time and date of the accidents. The highest percentage of deer accidents occurred between 6 and 10 pm and in November and December. The percentage of this type of accident was highest in western and northern Kentucky and lowest in southeastern and central Kentucky. The accident rate for this type of accident was highest …

1994 Safety Belt Usage Survey And Evaluation Of Effectiveness In Kentucky, Kenneth R. Agent

Kentucky Transportation Center Research Report

The objective of this study was to establish 1994 safety belt and child safety seat usage rates in Kentucky. The 1994 survey documents the results from enacting a statewide mandatory safety belt law. 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.

The data show that enactment of the statewide law had a dramatic effect on usage rates. The usage rate for drivers increased from …

Evaluation Of Pavement Edge Drains And The Effect On Pavement Performance, L. John Fleckenstein, David L. Allen, Jack A. Harison

Kentucky Transportation Center Research Report

This report documents the performance of highway edge drains in Kentucky. Approximately eighteen high edge drain installations were inspected. The report also documents the laboratory testing, construction, short-term and long-term performance of these systems. Construction inspection and maintenance are addressed.

It is apparent that the panels are distressed more under the old method of installation using excavated trench material and dynamic type compaction. It is apparent that using the sand slurry reduces the chances of installation damage. Proper density needs to be achieved during installation of the sand backfill or damage will occur due to trench settlement. In most cases, …

Evaluation Of Edge Drains Headwalls And Outlets On Western Kentucky Parkway And Pennyrile Parkway, L. John Fleckenstein, David L. Allen

Kentucky Transportation Center Research Report

On May 10, 1994, the Kentucky Transportation Center conducted a routine edge drain and outlet inspection on the Pennyrile Parkway in the vicinity of Milepost 23. The edge drains had been in service since 1992. Two edge drain outlets were inspected with a "Cues" pipeline inspection camera. One of the outlets was 85 percent blocked by rock and debris. District 2, operations personnel concerned with the findings requested that the Kentucky Transportation Center evaluate all 364 outlets on the project plus an additional 49 edge drain outlets that were being installed on the Western Kentucky Parkway.

This report documents the …

Analysis Of Traffic Accident Data In Kentucky (1989-1993), Kenneth R. Agent, Jerry G. Pigman

Kentucky Transportation Center Research Report

This report includes an analysis of traffic accident data in Kentucky for the years of 1989-1993. A primary objective of this study was to determine average accident statistics for Kentucky highways. Average and critical numbers 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 …

Summary Of Results Of 1993 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 1993 field and laboratory evaluations of pavement marking materials for the SASHTO Regional Test Facility. The report is divided into two volumes. The first volume presents the field evaluations while the laboratory tests results are given in the second volume. 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 …

Evaluation Of Advanced Surveying Technology For Accident Investigation, Kenneth R. Agent, John A. Deacon, Jerry G. Pigman, Nikiforos Stamatiadis

Kentucky Transportation Center Research Report

The objective of this study was to evaluate the use of advanced surveying technology tor the investigation of traffic accidents.

The analysis shows that the investigation of traffic accidents using total station (survey) equipment provides a substantial improvement over the traditional coordinate procedure. The number of measurements obtained at an accident scene increased (by a factor of about two) when the total station equipment was used while the time required to collect the measurements decreased by about 33 percent with the man hours decreased by about one-halt. The increase in the number of measurements results in a more accurate and …

Appendix: List Of Participants [1994], Kentucky Transportation Center

Kentucky's Annual Forum on Transportation

No abstract provided.

Weather Forecasting, Cindy Preszler

Kentucky's Annual Forum on Transportation

No abstract provided.

Work Session Reports: Findings And Suggestions, William R. Monhollon

Kentucky's Annual Forum on Transportation

No abstract provided.

Working With The Media--How It's Done In Milwaukee, David J. Lorbeske

Kentucky's Annual Forum on Transportation

No abstract provided.

Plowing-Spreading--Start To Finish, Robert A. Yeager

Kentucky's Annual Forum on Transportation

No abstract provided.

Privatization, William M. Cress

Kentucky's Annual Forum on Transportation

No abstract provided.

Chemicals--What's New, Tried & True Applications, Carl Wells

Kentucky's Annual Forum on Transportation

No abstract provided.

Resources--Money, Equipment, Manpower, Donald W. Lucas

Kentucky's Annual Forum on Transportation

No abstract provided.

Finding Your Own Lake Wobegon, Michael R. Nichols

Kentucky's Annual Forum on Transportation

No abstract provided.

Winning The Big Battle--Dealing With Heavy Snowfall, David J. Lorbeske

Kentucky's Annual Forum on Transportation

No abstract provided.

Economic Impact To Industry, Douglas R. Kuelpman

Kentucky's Annual Forum on Transportation

No abstract provided.

A Kentucky Perspective And Comparison With Milwaukee's Experience, Dale R. Hettinger

Kentucky's Annual Forum on Transportation

No abstract provided.

"The Big One"--A Report On The Cold War Of 1994, J. M. Yowell

Kentucky's Annual Forum on Transportation

No abstract provided.

Welcome And Remarks [1994], Thomas W. Lester

Kentucky's Annual Forum on Transportation

No abstract provided.

Kentucky Transportation Hall Of Fame [1994], Kentucky Transportation Center

Kentucky's Annual Forum on Transportation

No abstract provided.

Barge Traffic On Kentucky Rivers, Michael W. Whitney, Issam E. Harik, James J. Griffin, David L. Allen

Kentucky Transportation Center Research Report

Kentucky currently has the second longest navigable inland waterway system in the United States. Prior to the design of a bridge at a specific location on a river, a thorough investigation of barge traffic at that location ust be conducted. This report investigates the barge traffic on all navigable waterways in Kentucky. This report provides the data necessary to develop the risk assessment procedures for Kentucky vessel impact design problems in accordance with the AASHTO Guide Specification and Commentary for Vessel Collision Design of Highway Bridges design Method II. Method II is more rigorous to apply than Method I, but …

Forecasting And Backcasting Equivalent Single Axleloads (Volume 2- Appendix C), Jack A. Harison, David L. Allen, Jerry G. Pigman

Kentucky Transportation Center Research Report

No abstract provided.