US Patent 10386195 Route guidance system with emergency state indications

A system receives an indication from a first vehicle that the first vehicle is traveling on a drive associated with an emergency to a destination that is associable with the emergency, updates map data to include a representation of the emergency at the location of the first vehicle, and provides the updated map data to a plurality of vehicles executing a navigation application providing route guidance to the plurality of vehicles to respective destinations, so that the instances of the application running for the plurality of vehicles each includes a representation, such as an icon, that represents the indicated emergency at a map location corresponding to the real space location of the first vehicle.