Railway rails, Rails, Railway track, Railway fixed equipment, Steels, Dimensions, Tolerances (measurement), Chemical composition, Hardness, Hardness measurement, Flatness measurement, Tensile testing, Laboratory testing, Inspection, Approval testing, Production planning Railway applications

GNSS is often inaccurate and satellite signals are not always available, which results in ambiguous situations. In order to reduce their negative effects on train-borne localization, this work proposes an approach for the detection of tracks, turnouts, and branching directions solely from 2d lidar sensor measurements. The experimental evaluation shows highly correct and complete results. In summary, these detections are sufficient to reduce ambiguity problems in train-borne localization.

Railway engineering, Railway rails, Rails, Railway track, Railway fixed equipment, Manganese steels, Heat-treatable steels, Hardness measurement, Flatness measurement, Tolerances (measurement), Fracture toughness, Fatigue testing, Stress analysis, Tensile testing, Laboratory testing, Visual inspection (testing), Railway applications

Railway rails, Rails, Railway track, Railway fixed equipment, Turnouts, Point work, Steels, Dimensions, Tolerances (measurement), Chemical composition, Hardness, Approval testing, Hardness measurement, Flatness measurement, Tensile testing, Laboratory testing, Inspection, Quality control, Railway applications