Data mining for traffic signals or signs along road curves and enabling precautionary actions in a vehicle

A database stored on a computer-readable medium, wherein the database includes non-transitory data that represents a road network in a geographic region, wherein the database comprises:

• data records that represent road segments that make up the road network;
• data that indicates curvature of the road segments;
• and
• precautionary action data that indicates precautionary action locations throughout the road network in the geographic region, wherein each precautionary action location is associated with a location along the road network where at which at least two conditions exist at a same location, wherein the two conditions include (i) presence of a traffic light or stop sign and (ii) a curved section of a road.

A vehicle system comprising:

• a database that contains data representing a geographic region in which a vehicle is being operated, wherein the data includes data that represents a road network located in the geographic region and precautionary action data that indicates precautionary action locations associated with locations throughout the road network in thegeographic region where at least two conditions exist at a same location, wherein the two conditions include (i) presence of a stop light or traffic light and (ii) presence of a curved section of road;
• a positioning system that determines a current location of the vehicle relative to the data representing a geographic region;
• and
• a precautionary action application responsive to the positioning system and the database that provides a precautionary action when the positioning system determines that the current location of the vehicle is approaching a traffic light or stop sign located along a curved section of road.

A method for providing precautionary actions in a vehicle comprising:

• determining a current position of the vehicle;
• accessing a database that represents a road network to obtain data representations of a part of the road network around the current position of the vehicle;
• and
• upon determining that the data representations of the part of the road network around the current position of the vehicle include precautionary action data, taking a precautionary action, wherein precautionary action data indicates locations along the road network at which at least two conditions exist a same location, wherein the two conditions include (i) presence of a traffic light or stop sign and (ii) presence of a curved section of road.