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Robust Optimization Method for Mountain Railway Alignments Considering Preference Uncertainty for Costs and Seismic Risks
Publisher: ASCE
Abstract: Railways are vital infrastructures whose design is complex and time-consuming. In addition to multiple conflicting objectives and highly-constrained search spaces, their design also faces great uncertainties. The aim of ...
Modeling Earthquake-Induced Landslide Risk for Mountain Railway Alignment Optimization
Publisher: ASCE
Abstract: Construction investment and geological risk of a railway project are significantly influenced by the alignment design. Thus, for railways in earthquake-prone regions, the seismic risks should be addressed at the alignment ...
Parallel Three-Dimensional Distance Transform for Railway Alignment Optimization Using OpenMP
Publisher: ASCE
Abstract: Railway alignment optimization is a large-scale and time-consuming civil engineering problem. To solve it, a three-dimensional distance transform (3D-DT) algorithm, which is a variant of the three-dimensional Euclidean ...
Use of Airborne and Terrestrial Lidar to Detect Ground Displacement Hazards to Water Systems
Publisher: American Society of Civil Engineers
Abstract: We investigate the use of multiepoch airborne and terrestrial lidar to detect and measure ground displacements of sufficient magnitude to damage buried pipelines and other water system facilities that might result, for ...