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RISAn Automated Sound Barrier Inventory Method Using Mobile LiDAR
Publisher: ASCE
Abstract: A sound barrier, also called a noise barrier, plays an irreplaceable role in traffic noise abatement. The Federal Highway Administration’s (FHWA) highway noise regulation requires each state highway agency to maintain a ...
Network-Level Guardrail Extraction Based on 3D Local Features from Mobile LiDAR Sensor
Publisher: ASCE
Abstract: Guardrails are critical boundary infrastructures protecting against road departures and traffic collisions. The presence and condition information of in-service guardrails are essential for transportation agencies to perform ...
Geometry Preserving Active Polygon-Incorporated Sign Detection Algorithm
Publisher: American Society of Civil Engineers
Hybrid Active Contour–Incorporated Sign Detection Algorithm
Publisher: American Society of Civil Engineers
Abstract: Traffic signs are one of the important roadway assets. Transportation agencies are required to inventory sign assets, but current manual traffic sign inventory methods are labor-intensive and time-consuming. A generalized ...
Automatic Horizontal Curve Identification and Measurement Method Using GPS Data
Publisher: American Society of Civil Engineers
Abstract: Horizontal curves play a critical role in roadway safety by providing a smooth transition between tangent sections. Because radii of horizontal curves are one of the most fundamental elements in roadway geometry design, ...
Critical Assessment of an Enhanced Traffic Sign Detection Method Using Mobile LiDAR and INS Technologies
Publisher: American Society of Civil Engineers
Abstract: Traffic signs are important roadway assets that provide critical guidance, including regulations and safety-related information, to road users. Traffic signs need to be inventoried by transportation agencies. However, the ...
An Automated Pavement Marking Retroreflectivity Condition Assessment Method Using Mobile LiDAR and Video Log Images
Publisher: American Society of Civil Engineers
Abstract: Pavement markings are a key transportation asset and traffic control device that facilitate safe and predictable driving. The effectiveness of pavement markings is dependent on their condition, particularly during nighttime ...
Advanced Deep Learning–Based Hybrid Rail Extraction Algorithm Leveraging LiDAR Technology
Publisher: American Society of Civil Engineers
Abstract: In the United States, around 1/3 of the rail network is operated by short lines. These railroads play an important role in the nation’s transportation system by serving as the feeder and distributor for the rail network, ...
Critical Assessment of Measuring Concrete Joint Faulting Using 3D Continuous Pavement Profile Data
Publisher: American Society of Civil Engineers
Abstract: Faulting has traditionally been collected by using manual methods, which are labor intensive, time-consuming, and hazardous to workers and drivers. Therefore, alternative methods for effectively and safely collecting ...
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 ...