Vertices

The vertices.csv input file contains 3 fields: NODE, X, and Y. The first field is a vertex id label, followed by the X and Y coordinates of the vertex on the map in the map units. Vertices represent landings or access points on to the road network, and are always located as the end points of line segments. See Table 18, “Vertices file format description” for a detailed description of the segment file format.

Table 18. Vertices file format description

Field nameData typeDescription
NODEStringA unique, arbitrary alphanumeric label that is used to identify the node for matching purposes. The label should not contain special characters or spaces.
XFloatThe X coordinate value that is used for node matching purposes, and for display of the road network if a spatial file is not provided.
YFloatThe Y coordinate value that is used for node matching purposes, and for display of the road network if a spatial file is not provided.

[Note]Note

The values in this file represent nodes at the end points of the road segments. The term 'vertices' is a historical misnomer.

[Note]Note

The X and Y values are used for map display if the spatial road network file is not provided.

The following example illustrates a number of vertices.csv records.

  NODE,X,Y
  1,430000.0,1410200.0
  2,430600.0,1410200.0
  3,431200.0,1410200.0
  4,434200.0,1410200.0
  5,434800.0,1410200.0
  6,435400.0,1410200.0
  ...