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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
This magazine is an archived publication and may contain dated technical, contact, and link information.
|Publication Number: Date: Summer 1995|
Issue No: Vol. 59 No. 1
Date: Summer 1995
The following new research studies reported by the Federal Highway Administration's (FHWA) Office of Research and Development are sponsored in whole or in part with federal highway funds. For further details on a particular study, please contact Bob Bryant, editor of Public Roads, (202) 493-3468.
A.3: Highway Safety Information Management
Title: Research on Evaluation of Emerging Technologies for Accident Data Collection
Objectives: These are four cooperative agreements to collect crash data using advanced technologies and then to evaluate the data collected under field tests to determine the costs and benefits associated with such applications.
Contractor #1:Wisconsin Dept. of Transportation Expected Completion Date: January 1996 Estimated Cost: $100,000
Contractor #2: Washington State Patrol Expected Completion Date: January 1996 Estimated Cost: $115,000
Contractor #3: New Jersey Dept. of Law and Public Safety Expected Completion Date:January 1996 Estimated Cost: $45,500
Contractor #4: Iowa DOT Expected Completion Date: January 1996Estimated Cost: $146,940
C.1: Evaluation of Rigid Pavements
Title: Early and Long-Term Effects of Curling and Warping on Jointed Concrete Pavement '94
Objectives: To determine stress and strain development through the life of jointed concrete pavement; to determine the effects of temperature, moisture, and critical combinations with loading; to determine the effects of current construction practices on pavement condition; and to develop recommendations for revisions to design and construction guidelines for jointed concrete pavements.
Contractor: University of Washington
Expected Completion Date: December 1996
Estimated Cost: $820,806
C.6: Long-Term Pavement Performance Evaluation
Title: Model Development for Prediction of Distress and Roughness in PCC Pavements
Objectives: For each portland cement concrete (PCC) pavement type jointed portland concrete pavement, jointed reinforced concrete pavement, and continuously reinforced concrete pavement using the latest time sequence, long-term pavement performance (LTPP) data tables to: develop statistical models to predict faulting, cracking, spalling, punchouts, and international roughness index (IRI), using advanced modern regression techniques; evaluate and calibrate existing state-of-the-art mechanistic and mechanistic-empirical models for predicting the primary distress manifestations (cracking, faulting, spalling, and punchouts); develop new models to predict IRI as a function of the calibrated cracking, faulting, spalling, and punchout models; and develop a set of guidelines for improving these models as more LTPP data becomes available. The guidelines will also have examples of some of the potential problems that arise in the modeling effort and pitfalls to avoid in defining variables for respective mechanistic and statistical models.
Contractor: Transtec Inc.
Expected Completion Date: July 1996
Estimated Cost: $333,000