In this project, a research synthesis was carried out to determine exactly what the current state of knowledge on random transverse mid-panel cracking of Portland cement concrete pavements. This was accomplished by means of a comprehensive literature review of published works and through a survey of other DOT's. In addition, preliminary analyses we
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Portland cement concrete slabs are a common form of highway pavements in Indiana. As a result of their widespread use, the economic impact of their maintenance and life span is therefore tremendous. In Indiana, these types of pavements have been experiencing premature random transverse mid-panel cracking. This phenomenon has been observed under a v
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The Indiana Department of Transportation (INDOT) has used the Design-Build contract delivery method on a few projects and received mixed responses from those involved in the process. Because of these differing reactions, INDOT felt that an evaluation of its Design-Build program was appropriate to determine its future use in Indiana. This project th
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Design-Build has been an effective contracting method in the private and public arenas. Departments of Transportation have used this contracting method on various projects for a variety of reasons. The Indiana Department of Transportation (INDOT) has used this contract delivery method on a few projects with mixed responses from those involved in th
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Existing precast concrete railroad crossings in the state of Indiana are experiencing too short a life expectancy. This study proposes methods that can be used to produce durable concrete railroad crossings with satisfactory rideability, durability, and longevity. Thirty-two precast concrete railroad crossings were visited in central and northern I
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This report is the second of a two-part, three volume final report presenting the findings of the research work that was undertaken to evaluate the behavior of Indiana highway bridges with diaphragm members welded directly to the web of the primary beams and girders. Fatigue cracks have been observed at several bridges that utilize the welded diaph
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This project studied and analyzed Hyperfix. What made it work, what the impacts were, what was learned, and what could be improved; answers to these and other questions were formed. Collectively, these answers are the Hyperfix analysis results.
In 2003 the Indiana Department of Transportation executed an ambitious interstate reconstruction project in Indianapolis, named Hyperfix. This project completely closed the I-65/70 section during reconstruction, on which approximately 250,000 vehicles travel daily. Due to the scope and risk involved, an extensive amount of planning, coordination, a
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This project supported the Traffic Safety Culture Transportation Pooled Fund (TSC-TPF) by developing outreach materials and a communication plan to improve the dissemination and use of research findings. Using the Improving Pedestrian Safety project as a pilot, the project team created a concise project summary, audience-specific speaking points, a
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This study investigated the complicated friction phenomenon during the process of tire-pavement interaction using 3-D FEM simulation. This study also investigated the primary frictional variations such as system variations, seasonal variations, spatial variations, and temporal variations. Based on the results, this study has finalized test frequenc
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This study investigated many important issues associate with pavement surface friction testing, in particular using the smooth tire. This study utilized 3-D FEM program to investigate the fundamental friction phenomenon in light of energy dissipation during friction process. It was demonstrated that the pavement friction depends on many factors suc
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This project was requested with the objectives of reviewing available seismic hazard assessments, analyzing the seismic hazard on a county-by-county basis, analyzing the recent seismicity and its implications for seismic hazard in the state, and making recommendations for seismic hazard monitoring. The study also includes an intercomparison of meth
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Current USGS probabilistic seismic hazard estimates (Frankel et al., 2002) show a higher seismic hazard in southwestern Indiana than for the rest of the state. This is expected based on past work documenting large pre-historic events in the Wabash Valley and also based on isoseismal levels of shaking from the New Madrid 1811-1812 earthquakes. When
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A commonality among state Departments of Transportation is the inability to complete projects on time and within budget. This is a chronic problem for the Indiana Department of Transportation (INDOT) as well. Time delays, cost overruns and change orders are generally due to factors such as design errors, unexpected site conditions, increases in pro
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A commonality among state Departments of Transportation is the inability to complete projects on time and within budget. This project assessed the extent of the problem of cost overruns, time delays, and change orders associated with Indiana Department of Transportation (INDOT) construction projects, identified the reasons for such problems, and fi
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The objective of this project is to use validated intelligent compaction (VIC) technology to map 1/4 to 1/3 of the unpaved gravel road network across the state of Iowa. This work will be done over 2 summer seasons to be completed in the 3-year time frame set forth in the AID Grant NOFO. The mapping will gather Modulus Values; Road Geometry (x,y,z);
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The objective of this to create a new application, similar to those already in use at the Service Bureau (SB) that the county engineers are accustomed to using. That application would be developed by the current SB programmers. Once completed all data collected across the State of Iowa by the mapping process including modulus values would be proces
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Chloride-based brine deicers are widely used to maintain winter roadway safety, but their performance drops in extreme cold as meltwater dilutes the brine, and their runoff accelerates concrete deterioration, rebar corrosion, and ecological harm. This report investigates sustainable, high-performance deicing formulations that enhance low-temperatur
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The objective of this research was to investigate the applicability of this shear model and simplified design method developed for reinforced concrete members to prestressed concrete members. The primary goal was to develop a simple design method which can be used for the calculation of shear strength for both non-prestressed and prestressed sectio
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Design methods for the shear resistance of reinforced and prestressed concrete beams are based on empirical evidence. Due to different approaches in their development different equations are used to calculate the shear strength of reinforced and prestressed concrete. Recent research conducted by Tureyen has proposed a simplified shear model for rei
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United States Department of Transportation
Noureldin, Samy