Abstract
The Bureau of Public Roads and Philco Corporation have cooperated in developing a machine adaptable technique for the non-ambiguous designation of a vehicles exact position within a system of roads as well as a selected route to proceed to any other point in the system. To demonstrate this technique, a manual visual example for route following was developed. It uses a simulated route code developed for the pentagon network, and a matrix to direct a vehicle to its destination by a selected route. The matrix may be used to direct the driver of a vehicle to any selected destination within the matrix by a route selected according to minimum distance and safety of required manoeuvres. /author/.