Engineering Commons^™

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 …

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 …

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.

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.

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 …

Stress Measurements On The I 65 Bridge Over The Ohio River At Louisville, Theodore Hopwood Ii, Christopher M. Oberst

Kentucky Transportation Center Research Report

Kentucky Transportation Center personnel conducted measurements of live stresses on structural members of the I 65 (John F. Kennedy Memorial) Bridge over the Ohio River. That work was performed in conjunction with an extensive flaw evaluation of the bridge by Hazelet & Erdal Consulting Engineers.

The measurements were performed by placing strain gages on the upper chord (an H-beam) and a vertical post and transverse strut that were framed into the upper chord at PP63 on the West truss. Measurements were performed using battery-powered data logging instruments that were capable of unattended strain measurement. The units were used to monitor …

Evaluating The Design And Effectiveness Of Subsurface Drainage Layers, Bobby W. Meade, David Q. Hunsucker

Kentucky Transportation Center Research Report

In recent years, the subject of open-graded drainage layers, often referred to as "drainage blankets", has been utilized increasingly for pavement drainage. This study addresses the use of drainage blankets in Kentucky. Study efforts have focused on construction, performance, materials, and design considerations of drainage blankets.

Study findings are that the Number 57 gradation provides the optimum drainage and structural stability of the standard gradations evaluated. Asphalt treated aggregate provides greater stability and a better working platform than untreated aggregate. Maintenance of collector system outlets is very poor. Daylighting of drainage blankets appears to be feasible. Drainage blankets can be …

Evaluation Of Kentucky’S Policy On Tourist Information Signs, Jerry G. Pigman

Kentucky Transportation Center Research Report

As a result of recommendations made by the Governor's Task Force on Signage and Tourism, the Transportation Cabinet requested that an evaluation be made of Kentucky's policy on tourist information signs. Among the tasks undertaken were a review of the formula tor Parks, Historic, and Recreation Area signs, a survey of interstates and parkways to determine the extent of the constraints imposed by the limitation of one supplemental sign tor each interchange approach, and an investigation of the potential for application of Tourist Oriented Directional signs (TODS).

The opportunity tor increased tourism through improvements in signing and accessibility was evaluated. …

Summary Of Stress Evaluations Of Welded Steel Bridges On Coal-Haul Routes, Theodore Hopwood Ii, Keith J. Hogan, Christopher M. Oberst

Kentucky Transportation Center Research Report

Stress analyses were performed on continuous girder welded steel bridges on extended weights coal-haul routes. The tests were intended to determine whether extended weight coal trucks pose fatigue problems to those bridges. Measurements were performed by strain gaging selected bridges subject to high coal transport tonnages. Stress measurements were conducted on fatigue-prone weld details or test sites where high tensile stresses were anticipated. Test sites on the bridges were instrumented with strain gages. Strains induced by routine traffic including coal trucks were monitored for periods of one to two weeks. Unattended monitoring of the variable amplitude strain data was performed …

Cost Estimating And Forecasting For Highway Work In Kentucky, James D. Stevens

Kentucky Transportation Center Research Report

There is a need for a better cost estimating and forecasting for highway work in the Commonwealth of Kentucky. KRS45.245 grants the Interim Joint Committee on Transportation oversight of the biennial highway plan, including a review of all authorized highway project phases that exceed their estimates by 15%. In recent years, the Kentucky Transportation Cabinet has suffered the loss of many resources necessary to produce good cost estimated.

Estimates developed using current methods are not sufficiently accurate to preclude cost overruns in excess of 15%. During the biennium 134 overruns, totaling over $69 million, have been submitted to the Committee. …

Follow-Up Inspection Of Premature Cracking On The National Turnpike, Jefferson County, L. John Fleckenstein, David L. Allen

Kentucky Transportation Center Research Report

This report discusses the investigation of the premature cracking that has been occurring on the National Turnpike, Jefferson County since 1989. A report was issued in 1990, KTC-90-5. This report documents performance to date. A detailed distress survey was performed evaluating each slab throughout the project site.

The distress survey indicates that substantial pavement cracking has occurred since the last visual inspection in 1990.

An intense maintenance program is recommended.

Barge Impact Loads For The Maysville Bridge, Michael W. Whitney, Issam E. Harik, James J. Griffin, David L. Allen

Kentucky Transportation Center Research Report

This report provides the barge equivalent static load distribution data needed to apply method II of vessel impact design for the Maysville, Kentucky bridge over the Ohio River. The information provided in this report is in accordance with the AASHTO Guide Specification and Commentary for Vessel Collision Design of Highway Bridges.

A computer program was written to process the database and calculate the probability based length, width., and capacity for each barge category. Additionally, a second computer program was written to calculate the probability based number of barges in a flotilla column and row, and subsequently categorize that flotilla based …

Construction And Interim Performance Of A Shrinkage Compensating (Class S) Bridge Deck Concrete, Michael D. Stone, David Q. Hunsucker

Kentucky Transportation Center Research Report

Shrinkage Compensating Concrete (Class S) is made with an expansive cement in which the expansion, if restrained, induces compressive stresses that approximately offset tensile stresses induced during drying shrinkage, thereby eliminating or significantly reducing the occurrence of shrinkage cracking in concrete. The objectives of this study were to evaluate the construction and performance of the Shrinkage Compensating Concrete (Class S) and to compare these characteristics to previous Class S concrete data and to conventional Class AA bridge deck concrete. This report summarizes the construction activities and interim performance of experimental decks and barrier walls constructed of shrinkage compensating concrete.

Development And Evaluation Of A Nfweav Simulation Model For Weaving Areas Under Non-Freeway Condition, Wen-Min Pan

Theses

The development of a microscopic digital computer simulation model representing vehicle interaction at a weaving area under non-freeway condition is presented. Weaving areas are classified into two categories: 1. Weaving caused by merging and diverging of a ramp with an arterial, 2. On/off ramps connecting an arterial with a highway. The principal characteristics of the simulation model are the following: 1) a car following and lane changing model were used to represent vehicle movements; 2) an anti-collision check algorithm was developed for all vehicle movements; 3) driver merging urgency and follower courtesy model were developed for weaving vehicles. The simulation …

Concrete Beam Design Optimization With Genetic Algorithms, Siripong Malasri, D. A. Halijan, M. L. Keough

Journal of the Arkansas Academy of Science

This paper demonstrates an application of the natural selection process to the design of structural members. Reinforced concrete beam design is used as the example to show how various chromosomes representing a design solution can be formulated. Fitter chromosomes (or better solutions) have a better chance of being selected for cross over; this in turn creates better generations. Random mutation is used to enhance the diversity of the population. The evolution progresses through several generations, and the best solution is then used in the design. The method gives reasonable results, but sometimes a local (as opposed to the global) optimized …

Kentucky Traffic Accident Facts 1994 Report, Kentucky Transportation Center, Kentucky State Police

Kentucky Transportation Center Research Report

KENTUCKY'S TRAFFIC ACCIDENT FACTS report for 1994 is based on accident reports submitted to the Accident Unit housed in the Kentucky State Police Information Services Branch, Records Section. As required by Kentucky Revised statutes 189.635, "every law enforcement agency whose officers investigate a vehicle accident of which a report must be made ... shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau." The stated purpose of this requirement is to utilize date on traffic accidents" for such purposes as will improve the traffic safety program in the Commonwealth." Data …