DS EN 13803-2:2007 Railway Applications - Track - Track Alignment Design Parameters - Track Gauges 1435 Mm And Wider - Part 2: Switches And Crossings And Comparable Alignment Design Situations With Abrupt Changes Of Curvature Defines the rules and values for the track alignment design parameters used to determine the maximum operating speeds over tracks with abrupt changes in curvature and, consequently, abrupt changes of