Branch data is used to represent linear futures such as rivers, streams and canals. Each branch has an unique identifier , a name, a start and end-chainage field, a link to an upper node and a link to a downstream node. A series of X, Y points defines the actual branch, the first point being the upstream node, the last point the downstream node. Each branch element has a number of required elements These are: -BranchID -BranchName -StartChainage -EndChainage -UpNode -DownNode This definition is modified from the EUROTAS format Each branch element has a number of required elements These are: -BranchID -BranchName -StartChainage -EndChainage -UpNode -DownNode This definition is modified from the EUROTAS format Name of the branch Chainage at the start of the branch Chainage at the end of the branch Upstream node id (string) Downstream node ID (string) Each branch must hold at least two pt (point/node) elements. The maximum number of points is not limited. Each pt element has two required attributes, X and Y that point to a geographical location. use this field as a notebook to add comments, suggestions description of data entered etc. Each branch must hold at least two pt (point/node) elements. The maximum number of points is not limited. Each pt element has two required attributes, X and Y that point to a geographical location.