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Research and Development (R&D) Project Sites

Project Information
Project ID:   FHWA-PROJ-08-0027
Project Name:   Creating Smart Pavements that Monitor and Report on Pavement Condition
Project Status:   Completed
Start Date:  September 9, 2008
End Date:  August 7, 2012
Contact Information
Last Name:  Faridazar
First Name:  Fred
Telephone:  202-493-3076
E-mail:  fred.faridazar@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Infrastructure Analysis and Construction Team [HRDI-20]
Program:   Exploratory Advanced Research
Project detail
Roadmap/Focus area(s):   Safety Planning
Project Description:   Fiscal year 2008 funds were used to initiate this research study, which is split into two phases. Fiscal year 2008 funds only cover phase I, which has focused on identifying and evaluating available technologies that can be embedded in a pavement and survive the harsh paving construction operation. The proposed phase II study consists of two parts: the focus of part 1 is to demonstrate a sensor system that is embedded in a pavement and capable of continuously monitoring the physical properties of asphalt and/or concrete pavements, at an early age as well as long term. It is envisioned that more than one type of sensor may be needed to assess adequately the monitoring of a pavement. The system integrates wireless communications, data acquisition, and various sensors capable of monitoring parameters that indicate potential pavement problems. Such parameters may include stress and strain within the pavement, cracking, temperature, and moisture. Although the objective of this phase is the development of the data collection system, the data will be collected and fed into existing pavement management systems to assist with predicting pavement performance and to help in the development of more effective maintenance plans. After completion of part 1, depending on fund availability, Federal Highway Administration may enter part 2 of the study to conduct more widespread field trials by taking into consideration the┬ádetermination of how many of these sensing devices must be installed with a given volume/area or per 1 km of pavement for reliability; determination of the optimal location for the device(s); assessing the ability of the sensor system to function correctly under the heavy traffic and environments in which the devices have to operate, and the possible effect of the environment on the performance of the sensor system (moisture, steel corrosion, alkali, temperature, etc.); determination of the length of time the sensor system will deliver data; ascertaining the reliability and consistency over time of the information obtained from the embedded devices; and refining the sensor system based on field evaluation. The proposed phase II research study addresses the objectives of Concrete Roadmap Project 40.1, Stress Sensing Concrete Pavement, Project 40.2, Self Inspecting Smart Concrete Pavements, and from the Asphalt Roadmap, Project 2.11 Remaining Service Life of In-Place Asphalt Pavements.
Goals:   Existing pavement condition assessment.
Product Type:   Research report
Test Methodology:   Yes
Expected Benefits:   To satisfy the gap identified in the objective of assessing existing pavements, development of advanced real-time nondestructive tools for health monitoring of pavement is necessary. The sensor system can be developed to be installed at the site of interest in pavements to obtain information on certain key parameters affecting the early age as well as the long-term behavior of pavements including: moisture and temperature; physical deformation; mechanical loading, such as stress and strain; cracking; and inplace strength and shrinkage stresses in concrete. The potential benefits of the use of sensor systems to the highway agencies are condition or health monitoring, damage assessment, integrity assessment, improved system reliability, longevity and enhanced system performance, and a reduction in life-cycle cost in operating and managing the infrastructure.
Deliverables: Name: Final report along with a sensor system.
Product Type(s): Research report
Description: The deliverable is a final report containing concise statements covering the activities relative to the work performed.
FHWA Topics:   Research/Technologies--Turner-Fairbank Highway Research Center (TFHRC)
TRT Terms:   Sensors
FHWA Disciplines:   Pavement and Materials
Subject Areas:   Data and Information Technology
Maintenance and Preservation


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