LTBP
Bridge Deck Condition Rating Forecast—Machine Learning Models
Heng Liu, Ph.D.; Jean A. Nehme, Ph.D., P.E.; and Ping Lu, Ph.D., P.E.
1. Background Information
Machine learning models are developed to forecast bridge conditions using deep learning algorithms. Current model development focuses on bridge decks. In...
Bridge Deck Condition Rating Forecast—Survival-Based Models
Raka Goyal, Ph.D., P.E.
Introduction
The survival-based models on Federal Highway Administration (FHWA) InfoBridgeTM (FHWA, 2020) are probabilistic bridge deterioration models based on a methodology that combines...
Bridge Deck Condition Rating Forecast—Base Models
Base models are deterministic statistical models that are easy to understand and implement. With base models, historical time duration for each deck condition rating of selected types of bridges is calculated from training subsets of the National Bridge Inventory (NBI) (Federal Highway...
RABIT™ Bridge Deck Assessment Tool

In the United States, the stewardship and management of approximately...
Long-Term Bridge Performance (LTBP) Program Publications
| Publication Date | Publication Number | Title... |
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Overall Program Presentation 2
Program Objectives
Over the next five years, LTBP will inspect, document, evaluate, and periodically monitor a representative sample of bridges nationwide, taking advantage of advanced condition monitoring technologies in addition to detailed visual inspections.The high-quality...Overall Program Presentation 1
FHWA Long-Term Bridge Performance Program
Designated in the "SAFETEA-LU" surface transportation authorization legislation as a 20-year research effort to improve our knowledge of bridge performance
Funding is currently only authorized through FY-2009
...
Power Point Presentation II
Primary Tasks and Responsibilities
Matrix Diagram. Development and Pilot Tasks and Responsibilities. The diagram depicts a matrix with the two sub matrices; one representing the development phase and the other representing the pilot program. Both sub matrices have common...