General

Legacy ID

Public Roads Magazine

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Public Roads...

Plan Set Order

Organize plan sheet sections to show a logical progression of the project work. Group plan sheets according to their type and give each section a sequential letter. Follow the section order shown below. On most projects reserve Sections A, B, C, and D for the categories shown. Use the remaining...

Active Project Prefixes

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The following table lists all active projects in WFL. Use the unique project Prefix in filenames as shown in the...

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) InfoBridge^TM (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...