Abstract: A distributed computing system for determining road surface traction capacity for roadways located in a common spatio-temporal zone includes a plurality of vehicles that each include a plurality of sensors and systems that collect and analyze a plurality of parameters related to road surface conditions in the common spatio-temporal zone. The distributed computing system also includes one or more central computers in wireless communication with each of the plurality of vehicles. The one or more central computers execute instructions to determine a road surface traction capacity value for the common spatio-temporal zone.

Abstract: A distributed computing system for determining road surface traction capacity for roadways located in a common spatio-temporal zone includes a plurality of vehicles that each include a plurality of sensors and systems that collect and analyze a plurality of parameters related to road surface conditions in the common spatio-temporal zone. The distributed computing system also includes one or more central computers in wireless communication with each of the plurality of vehicles. The one or more central computers execute instructions to determine a road surface traction capacity value for the common spatio-temporal zone.

Abstract: A system and method of performing vehicle navigation services in coordination with a handheld wireless device that involves determining a vehicle location at a vehicle using a vehicle telematics unit of the vehicle; identifying a plurality of points-of-interest (POIs) within a predetermined range of the vehicle location; detecting a vehicle occupant has exited the vehicle; sending an instruction from the vehicle that directs a handheld wireless device associated with the vehicle occupant or the vehicle to begin generating location data; and receiving the location data from the handheld wireless device.

Abstract: A system and method of performing vehicle navigation services in coordination with a handheld wireless device that involves determining a vehicle location at a vehicle using a vehicle telematics unit of the vehicle; identifying a plurality of points-of-interest (POIs) within a predetermined range of the vehicle location; detecting a vehicle occupant has exited the vehicle; sending an instruction from the vehicle that directs a handheld wireless device associated with the vehicle occupant or the vehicle to begin generating location data; and receiving the location data from the handheld wireless device.