Vehicle Navigation System and Method

A navigation method comprising:

• determining a route to a destination;
• determining a road classification for each road or a portion of each road comprising the route;
• assigning a tolerance to each road or portion of each road based on the determined classification for that road or road portion;
• using the assigned tolerances, determining points defining the route such that the roads comprising the route are within a bounded area defined by the tolerance in conjunction with a plurality of lines connecting successive points along the route;
• and
• delivering the determined points to a vehicle computing system in communication with a server.

A system comprising:

• a server in wireless communication with a vehicle computing system, configured to:
• determine a destination route;
• divide the route into a plurality of portions;
• determine a road classification for the portions;
• assign a tolerance to each portion based on the classification;
• using the assigned tolerances, determine route points such that the roads comprising the route are within a bounded area;
• and
• deliver the determined points for navigating the vehicle toward the destination.

A computer readable storage medium storing instructions which, when executed by a processor, cause the processor to perform the method comprising:

• determining a route to a destination;
• determining a road classification for each road or a portion of each road comprising the route;
• assigning a tolerance to each road or portion of each road based on the determined classification for that road or road portion;
• using the assigned tolerances, determining points defining the route such that the roads comprising the route are within a bounded area defined by the tolerance in conjunction with a plurality of lines connecting successive points along the route;
• and
• delivering the determined points to a vehicle computing system in communication with a server.