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RISIn Situ Change Analysis and Monitoring through Terrestrial Laser Scanning
Publisher: American Society of Civil Engineers
Abstract: In addition to inherent degradation with time, geologic hazards such as coastal erosion, landslides, and seismic activity constantly threaten public infrastructure. Repeat surveys using terrestrial laser scanning [TLS, ...
Linking Surveying, Engineering, GIS, and Computer Science into Geomatics through a Digital Terrain Modeling Course
Publisher: American Society of Civil Engineers
To Level or Not to Level: Laser Scanner Inclination Sensor Stability and Application
Publisher: American Society of Civil Engineers
Abstract: Many modern terrestrial laser scanners (TLSs) are equipped with inclination/tilt sensors—also referred to as level compensators—that can correct out-of-level imperfections in an instrument setup. Some users elect to disable ...
Virtual ADA Compliance Assessment: Mimicking Digital Inclinometers to Measure Slopes within Point Clouds
Publisher: American Society of Civil Engineers
Abstract: The Americans with Disabilities Act (ADA) requires that the design, construction, and maintenance of curb ramps provide accessibility to persons with disabilities. Light detection and ranging (lidar) can efficiently collect ...
Risk of Entrapment at Low-Head Dams
Publisher: American Society of Civil Engineers
Abstract: This study examines the dangerous countercurrent that can form at the downstream face of a low-head dam for certain flow conditions, utilizing computational fluid dynamics software and laboratory observations. The objective ...
A Parameter Investigation Into the Thompson Constant-Velocity Coupling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Thompson coupling is a relatively recent design of constant-velocity coupling, that is, principally based on the double Cardan mechanism. An extra mechanism comprising a spherical pantograph ...
Alternative Information Signs: Evaluation of Driver Comprehension and Visual Attention
Publisher: American Society of Civil Engineers
Abstract: The effectiveness of a traffic sign is collectively influenced by the sign’s understandability, legibility distance, glance legibility, and learnability; however, understandability has been repeatedly identified as one of ...
Alternative Information Signs: Evaluation of Driver Comprehension and Visual Attention
Publisher: American Society of Civil Engineers
Abstract: The effectiveness of a traffic sign is collectively influenced by the sign’s understandability, legibility distance, glance legibility, and learnability; however, understandability has been repeatedly identified as one of ...
Low-Head Dam Reverse Roller Remediation Options
Publisher: American Society of Civil Engineers
Abstract: The writers examine possible remediation options to mitigate the dangers found at low-head dams, using computational fluid dynamics and physical model tests. The objective was to identify an option that could be relatively ...
Multihazard Damage and Loss Assessment of Bridges in a Highway Network Subjected to Earthquake and Tsunami Hazards
Publisher: ASCE
Abstract: The objective of this study is to examine and compare the vulnerabilities of highway bridges to the combined effects of earthquake shaking, ground failure, and tsunami loading. Earthquake-induced ground shaking, ground ...