A network technique is described for the nonambiguous designation of a vehicle at an exact position within a system of roads as well as a selected route by which a vehicle may proceed to any other point in the system.
Based on the nodes of the highway system, this code is developed for eight branches connecting to one node. The number of possible branches connecting to a node is limited by available space in a highway network.
A suggested technique for coding includes nodes named in a manner to provide maximum information, branches designated by the most significant cardinal compass heading from each node, and a position description by adding measured distance to a given point from an adjoining node.