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Review of Emerging Technologies and Issues in Rail and Track Inspection for Local Lines in the United States
Publisher: ASCE
Abstract: Deteriorated track infrastructure can lead to significant consequences, such as derailment incidents, loss of revenue-service hours, reduced train operation speed, and even failure of the business. The Federal Railroad ...
Methodology for Accurate AASHTO PP67-10–Based Cracking Quantification Using 1-mm 3D Pavement Images
Publisher: American Society of Civil Engineers
Abstract: Quantification of cracking is crucial to assessing overall cracking condition, monitoring cracking propagation, and other pavement design and managerial decision-making purposes. For a majority of the highway agencies, the ...
Toward PM2.5 Distribution Patterns Inside Symmetric and Asymmetric Street Canyons: Experimental Study
Publisher: ASCE
Abstract: Distribution patterns of particulate matter 2.5 (PM2.5) inside urban street canyons varies according to the street canyon enclosure ratio (SCER) and traffic flow states, and therefore they affect people in different positions ...
Railway-Fastener Point Cloud Segmentation and Damage Quantification Based on Deep Learning and Synthetic Data Augmentation
Publisher: American Society of Civil Engineers
Abstract: Accurate detection and quantification of damage to railway fasteners are crucial for ensuring railway safety. The spatial damage defects caused by the complex shape of fasteners and the problem of data imbalance in actual ...
Multimodal Fusion Network for Crack Segmentation with Modified U-Net and Transfer Learning–Based MobileNetV2
Publisher: American Society of Civil Engineers
Abstract: This study introduces a state-of-the-art methodology for addressing crack segmentation challenges in structure health monitoring, a crucial concern in infrastructure maintenance. The main objective is to enhance real-time ...
A Data-Driven Method for Comprehensive Pavement-Condition Ranking
Publisher: American Society of Civil Engineers
Abstract: State highway agencies need pavement-condition data to select candidates for pavement maintenance and rehabilitation. However, it is a challenge for pavement engineers to simultaneously assess a number of attributes that ...
Impacts of Nighttime-Only Truck Traffic Regulation on Pavement Performance
Publisher: American Society of Civil Engineers
Abstract: With the increasing congestion and pollution in metropolitan areas, various types of regulations have been applied to control truck traffic. Restricting truck traffic to off-hours is one commonly used policy and its ...
Reducing the Effect of Inaccurate Lane Identification on PP69-10-Based Rut Characterization
Publisher: American Society of Civil Engineers
Cracking Classification Using Minimum Rectangular Cover–Based Support Vector Machine
Publisher: American Society of Civil Engineers
Abstract: Cracking characterization is one of the most important tasks in automated pavement data analysis. Although cracking detection and segmentation algorithms have become more reliable in recent years, accurate cracking ...
Experimental Research on Effects of Combustion Air Humidification on Energy and Environment Performance of a Gas Boiler
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To increase the waste heat recovery (WHR) efficiency of gas boiler and decrease NOx emissions, a flue gas total heat recovery (FGTHR) system integrating direct contact heat exchanger (DCHE) and combustion air humidification ...