Pavement Health Track (PHT) Analysis Tool
The U.S. Department of Transportation (USDOT), state DOTs, and other transportation planners and policy makers are regularly challenged with the task of predicting the future health of a pavement network. This information is critical to implementing preventive action in a timely manner so that maximum pavement life can be realized within budgetary constraints. In particular, transportation planners are challenged by the lack of robust but easy-to-use analysis tools that can process very large sets of pavement management data and provide meaningful guidance for decision making.
Through a series of efforts sponsored by the Federal Highway Administration (FHWA), ARA participated in the development and enhancement of Pavement Health Track (PHT) technology and PHT analysis tool. The purpose of the innovative research effort was to develop and deploy a robust, data-driven methodology for determining the health of a road network in terms of remaining service life (RSL).
The ARA-developed PHT analysis tool uses performance models recently developed by FHWA for the Highway Economic Requirements System (HERS) and the National Pavement Cost Model (NAPCOM). These pavement models are based on concepts included in the American Association of State Highway and Transportation Officials (AASHTO) Mechanistic-Empirical Pavement Design Guide (MEPDG) and associated Pavement ME Design software, which ARA developed.
In addition, the PHT offers state-of-practice maintenance options to estimate the benefits of each pavement section improvement quantified in terms extended service life. The PHT maintenance model is implemented into the PHT graphical user interface as an integrated feature that allows users to measure pavement performance under a maximum benefit/cost ratio or under a constrained funding scenario.
Through ARA’s help in developing the PHT analysis tool, transportation planners and policy makers can determine the health of different pavement types under various conditions, such as rural or urban environments or various climates, as well as a range of applications, including individual projects, highway networks, and corridors within a state or crossing state lines. The tool requires pavement data inputs from the latest Highway Performance Monitoring System (HPMS) database, or a state can input data from its pavement management system.
The PHT analysis tool is available for download at https://www.fhwa.dot.gov/pavement/healthtrack/.
Pavement and asset management, vehicle-based data collection, life cycle cost analysis, and construction and maintenance quality assurance systems... more
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