Jvgdata Circular curve

A circular curve in the railway network is characterised by a constant radius. The curves start and end in tangent points marked with cant signs on the inside of the foot of the outer rail with a maximum longitudinal deviation of 0.5 m. Circular curve is included as a trace element in the description of track geometry and is part of the plane geometry, which also includes straightlines, cants and transition curves. The track geometry represents the projected geometry and refers to the track center. The data product contains the radius and length of the circular curve as well as the method used for the data capture. Since the geometry has the attribute Origin = Geodetic, data is co-ordinated. The data product then has a high quality and can be used for all types of applications. At Origin = Pile height measurement data is interpreted from machine measurement and only suitable for applications where low quality can be accepted. The data product has stretch distribution and connects to the network with reference to the nearest previous node and nearest previous kilometre board with distance in meters to both the start and end positions of the circular curve (=key points) in the direction of the track link.