System and method for connected vehicle-based advanced detection of slow-down events

A system for detecting a traffic event on a roadway, comprising:

• a communication interface for communicating vehicle data from vehicles of interest travelling along the roadway within a communication range;
• and
• a processor operatively connected for computer communication with the communication interface, wherein the processor:
• discretizes the roadway at a cell level into a plurality of cells;
• receives the vehicle data from the vehicles of interest, wherein each of the vehicles of interest are located within a cell of interest from the plurality of cells;
• for each of the cells of interest at each timestep, calculating an average deceleration based on vehicle data transmitted from each of the vehicles of interest associated with the cell of interest;
• and
• detecting a traffic event based on the average deceleration for each cell of interest at each timestep.

A non-transitory computer-readable storage medium including instructions that when executed by a processor, causes the processor to:

• receive vehicle data from a plurality of vehicles travelling along a roadway, wherein the roadway is discretized at a cell level into a plurality of cells;
• identify vehicles of interest that are within a communication range of a host vehicle, wherein each of the vehicles of interest are associated with a cell of interest from the plurality of cells;
• for each cell of interest at each timestep according to a measurement update interval, calculate an average deceleration based on vehicle data transmitted from each of the vehicles of interest associated with the cell of interest;
• and
• detect a traffic event based on the average deceleration for each cell of interest at each timestep.