Transportation Engineering Commons^™

Remarks From Senator Helen Garrett, Helen Garrett

Kentucky's Annual Forum on Transportation

No abstract provided.

Construction Management And Engineering Work Session, Garey White, Paul Faulkner, R. R. Dawson Jr., Robert A. Walsburger

Kentucky's Annual Forum on Transportation

No abstract provided.

Traffic Management Work Session, Bruce Siria, Mike Hailperin, William Sampson, George A. Yates, Anthony J. Barry

Kentucky's Annual Forum on Transportation

No abstract provided.

Local Roads Management Work Session, Otto Ingram, Freddie Goble, Donald K. Bryant

Kentucky's Annual Forum on Transportation

No abstract provided.

Outstanding Road Programs, C. Leslie Dawson

Kentucky's Annual Forum on Transportation

No abstract provided.

Remarks: Lt. General E. R. Heiberg, Iii, E. R. Heiberg Iii

Kentucky's Annual Forum on Transportation

No abstract provided.

State And Local Government Reactions, Larry Hayes, Charles F. Haywood, Edwin L. Griffin, Prentice Harvey

Kentucky's Annual Forum on Transportation

No abstract provided.

Remarks: Frank Shafroth, Frank Shafroth

Kentucky's Annual Forum on Transportation

The conference date of this session should be March 19, 1987 instead of March 21, 1987.

Welcome [1987], Art Gallaher Jr., C. Leslie Dawson

Kentucky's Annual Forum on Transportation

No abstract provided.

From The Director... [1987], Calvin G. Grayson

Kentucky's Annual Forum on Transportation

No abstract provided.

Letter From Dr. Otis A. Singletary, Otis A. Singletary

Kentucky's Annual Forum on Transportation

No abstract provided.

Letter From C. Leslie Dawson, C. Leslie Dawson

Kentucky's Annual Forum on Transportation

No abstract provided.

Summary Of Experimental Bridge Features, Theodore Hopwood Ii, James H. Havens, Edgar E. Courtney

Kentucky Transportation Center Research Report

Experimental bridge features and service problems investigated during this study are reviewed. Those were epoxy-coated reinforcing steel, stay-in-place forms, experimental deck features (rotary compaction and broomed deck finishing), precast segmental bridges, steel-corrosion control methods (weathering steel and hot-dipped galvanizing), microsilica concrete, failures of masonry coatings, and failures of aluminum guardrail-retaining nuts.

Several features including latex and low-slump overlays, epoxycoated reinforcing steel, and broomed deck finishes (for state-built bridges), are now in common use. Most of the other experimental bridge features were performing satisfactorily. A corrosion problem was observed on one weathering steel bridge. Analyses of failures of masonry coatings and …

Acoustic Emission Monitoring Of Bascule Bridge Components, Theodore Hopwood Ii

Kentucky Transportation Center Research Report

During September 4-16, 1986, Kentucky Transportation Research Program (KTRP) personnel conducted a two-week inspection of welding operations on bascule bridge components for the Wisconsin Department of Transportation (WisDOT). Welding was performed by the Phoenix Steel Company at Eau Clair, Wisconsin. The inspection was conducted using acoustic emission (AE) monitoring on in-process welds.

KTRP investigative experience with AE weld monitoring and testing of bridges began in 1973. Since that date, KTRP has performed nine series of laboratory and fabrication shop weld monitoring tests and conducted 20 field tests of bridges using a series of increasingly sophisticated AE devices. Over the past …

Design And Performance Of Highway Shoulders, David Q. Hunsucker, Gary W. Sharpe, Robert C. Deen

Kentucky Transportation Center Research Report

This report summarizes finding of a long-term evaluation of the construction and performance of asphaltic concrete and portland cement concrete shoulders. Performance was used as the basis for the development of empirical criteria that permit the use of existing pavement thickness design procedures for the structural design of shoulders. Minimum thicknesses were determined on the basis of performance and review of literature.

Traffic Control And Accidents At Rural, High-Speed Intersections, Kenneth R. Agent

Kentucky Transportation Center Research Report

The site characteristics, traffic control used, and accidents occurring at 65 rural, high-speed intersections were summarized. The differences resulting when the right of way is controlled by stop signs versus a traffic signal are discussed. The factors contributing to the accidents as well as the characteristics of the accidents were analyzed. The data obtained at each intersection were summarized and recommendations, which could be used as a guide for implementing changes at other similar intersections, were made for the study locations. The accident analysis shows that providing the driver adequate warning of the intersection is of primary importance for this …

Civil Engineering Applications Of Acoustic Emission, Theodore Hopwood Ii

Kentucky Transportation Center Research Report

In 1939, a suspension bridge at Portsmouth, Ohio, experienced stress-corrosion cracking of the main-cable wires at anchorage points located at each end of the bridge. Watchmen were placed in the anchor chambers where the fractures had been detected. Subsequently, they reported hearing the sounds of further wire breakage on quiet nights. When this was reported, a decision was made to recable the bridge (1). That was one of the earliest documented instances of the use of the acoustic emission phenomena in a structural application.

Also, in the late 1930's, L. Obert and W. I. Duval at the U. S. Bureau …

Bridge Decks And Overlays, James H. Havens, Theodore Hopwood Ii, Edgar E. Courtney

Kentucky Transportation Center Research Report

The report presents a historical perspective of the Transportation Cabinet's bridge deck construction and maintenance efforts directed toward increasing bridge deck durability.

Bridge decks crack in specific patterns that primarily depend upon bridge designs. Normal deck cracking is due to load-induced and thermal effects. Each type of cracking has a distinct pattern.

One-hundred and nineteen experimental bridge deck overlays were inspected. Included were 9 membrane bridges, 87 latex concrete overlays and 23 low-slump overlays. The overlays had been placed originally on both new and existing bridge decks on various routes throughout the state. Most of the overlays were rated in …

Automated Data Acquisition For Low-Volume Road Inventory And Management, Theodore Hopwood Ii, Gary W. Sharpe, John W. Hutchinson, Robert C. Deen

Kentucky Transportation Center Research Report

Local governments need suitable inventories and condition surveys to accurately determine and prioritize their funding needs. An efficient method of performing an inventory of the roads and subsequently determining the condition of major system components is to use an automated data-acquisition system to measure and record essential data. The data may be collected and processed by a central inventory management group. The inventory should include pavement characteristics, roadway geometries, and roadside features. Pavement condition may include structural integrity, road roughness, and skid resistance. Roadway geometries include horizontal curvature, length, width, superelevation, and grade. Roadside features include signing, intersections, guardrails, and …

Evaluation Of 1985 Aashto Flexible Pavement Design Equations And Nomographs, Herbert F. Southgate, Gary W. Sharpe, Robert C. Deen

Kentucky Transportation Center Research Report

The 1985 AASHTO nomograph and equations for flexible pavements were reviewed and analyzed to determine requirements for input data, sensitivity of designs based on the additional variables for percent reliability, standard deviation, and resilient modulus of subgrade material. Design thicknesses using the 1985 AASHTO Guide were compared to thicknesses using the 1981 Kentucky thickness design method for flexible pavements.