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Project Details
STATUS

In-Progress

START DATE

09/28/16

END DATE

12/28/18

RESEARCH CENTERS InTrans
SPONSORS

Georgia Department of Transportation

PARTNERS

University of Georgia

Researchers
Co-Principal Investigator
Bora Cetin

About the research

The Mechanistic-Empirical Pavement Design Guide (MEPDG) represents a major improvement over its predecessors, particularly in its comprehensive coverage of environmental impacts such as climate and groundwater on pavement performance. However, accurate and reliable model boundary conditions (a.k.a. input data) must first be collected to take advantage of such improvements in the modeled pavement design. This project concludes to improve the quality of the climate data available to the Georgia Department of Transportation (GDOT) for use with the MEPDG.

Hourly climate data are the most important environmental inputs to the MEPDG. The MEPDG software itself contains hourly time series for only 17 ground-based weather station locations in Georgia (GA). There are some other sources of ground-based weather station data available for GA, but most are deficient in important ways. Instead, the project team will use an exciting new source for high-quality weather data: the Modem-Era Retrospective Analysis for Research and Applications (MERRA) product from the National Aeronautics and Space Administration (NASA).

Project Details
STATUS

Completed

START DATE

02/01/03

END DATE

12/01/07

RESEARCH CENTERS InTrans, CP Tech Center, CTRE
SPONSORS

American Concrete Pavement Association
Concrete paving industry
Federal Highway Administration
Georgia Department of Transportation
Indiana Department of Transportation
Iowa Department of Transportation
Kansas Department of Transportation
Lousiana Department of Transportation
Michigan Department of Transportation
Minnesota Department of Transportation
Nebraska Department of Roads
New York State Department of Transportation
North Carolina Department of Transportation
North Dakota Department of Transportation
Ohio Department of Transportation
Oklahoma Department of Transportation
South Dakota Department of Transportation
Texas Department of Transportation
Wisconsin Department of Transportation

Researchers
Principal Investigator
Jim Grove

PCC Engineer

Co-Principal Investigator
Tom Cackler
Student Researcher(s)
Fatih Bektas

About the research

The objectives of this five-year Transportation Pooled Fund study are to evaluate conventional and new technologies and procedures for testing concrete and concrete materials to prevent material and construction problems that could lead to premature concrete pavement distress, and to develop a suite of tests that provides a comprehensive method of ensuring long-term pavement performance. A preliminary suite of tests to ensure long-term pavement performance has been developed. Shadow construction projects are being conducted to evaluate the preliminary suite of tests. A mobile concrete testing laboratory has been designed and equipped to facilitate the shadow projects. The results of the project are being compiled in a user-friendly field manual, which will be available by summer 2006.

Project Details
STATUS

Completed

START DATE

08/01/98

END DATE

07/31/05

RESEARCH CENTERS InTrans, CTRE
SPONSORS

Delaware State Police
Florida State University
Georgia Department of Transportation
Iowa Department of Transportation
New York State Police
North Dakota Department of Transportation
South Dakota Department of Transportation

Researchers
Principal Investigator
Reginald Souleyrette

About the research

The ILT is a Map Objects/Visual Basic application for locate incidents such as crashes and traffic violations using a digital map. The ILT is an integrated component of an electronic forms management application called Traffic and Criminal Software (TraCS) developed by Iowa Department of Transportation. TraCS is currently a multi-state, collaborative effort involving law enforcement and transportation agencies from 23 States and a Canadian Province.

The ILT is designed for ease of use by users lacking prior technical exposure to GIS or GPS applications. The geographic data supporting the ILT serve as the basis for a multitude of programs and systems within Iowa, in contrast to the obsolete node-based referencing scheme previously used solely for the location of crashes. The ILT allowed the Iowa DOT to end the maintenance and production of nodes for crash location referencing purposes, and simultaneously, yield greater return on investment in geographic information system data developed and maintained for other purposes. The ILT has been customized for and deployed in several states (see the list of sponsors).

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