Data processing for connected and autonomous vehicles

1. A method to prioritize and analyze data exchanged in a connected vehicle transit network, the method comprising:

receiving, at a roadside unit, vehicle data from a plurality of connected vehicles;

determining a level of urgency for each connected vehicle of the plurality of connected vehicles based on whether or not the vehicle data associated with each of the connected vehicles indicates an event critical to safety according to event-based data involving each of the connected vehicles;

prioritizing a particular connected vehicle of the plurality of connected vehicles based on the level of urgency, a network latency or available computing resources;

in response to priority of the particular prioritized connected vehicle, determining to actuate a traffic signal at an intersection after a specified amount of time has passed;

changing signal phase and timing information of the intersection to actuate the traffic signal after the specified amount of time, wherein the changing the signal phase and timing involves changing when a future state of the traffic signal will change; and

sending, to the particular prioritized connected vehicle, signal phase and timing information indicating when the future state of the traffic signal will change.

2. The method of claim 1 , further comprising transmitting a message to other vehicles in the area of the particular prioritized connected vehicle in response to determining that the vehicle data indicates the event is critical to safety.

3. The method of claim 1 , further comprising transmitting a message to a localized server or a remote server in response to determining that the vehicle data indicates the event is not critical to safety.

4. The method of claim 1 , wherein the prioritizing comprises determining whether the vehicle data should be processed at the roadside unit, a localized server, or a remote server based on the level of urgency, the network latency or the available computing resources.

5. The method of claim 1 , further comprising:

transmitting the vehicle data from the roadside unit to a server; and

collecting, aggregating, and processing the vehicle data received from the roadside unit at the server.

6. The method of claim 1 , wherein the vehicle data is exchanged between the connected vehicle and the roadside unit using dedicated short-range communication (DSRC), and the vehicle data comprises: speed, acceleration, engine performance, trajectory, intended destination, an indicator of an accident, or a combination thereof.

7. A method to prioritize and analyze data exchanged in a connected vehicle transit network, the method comprising:

receiving, at a roadside unit, vehicle data from a plurality of connected vehicles;

determining a level of urgency for each connected vehicle of the plurality of connected vehicles based on whether or not the vehicle data associated with each of the connected vehicles indicates an event critical to safety according to event-based data involving each of the connected vehicles;

prioritizing a particular connected vehicle of the plurality of connected vehicles based on the level of urgency, a network latency or available computing resources;

in response to priority of the particular prioritized connected vehicle, determining to actuate a traffic signal at an intersection after a specified amount of time has passed;

sending signal phase and timing data to the particular prioritized connected vehicle from the roadside unit indicating when a future state of the traffic signal will change to

change the behavior of the particular connected.

8. The method of claim 7 , further comprising transmitting a message to other vehicles in the area of the particular prioritized connected vehicle in response to determining that the vehicle data indicates the event is critical to safety.

9. The method of claim 7 , further comprising transmitting a message to a localized server or a remote server in response to determining that the vehicle data indicates the event is not critical to safety.

10. The method of claim 7 , wherein the prioritizing comprises determining whether the vehicle data should be processed at the roadside unit, a localized server, or a remote server based on the level of urgency, the network latency or the available computing resources.

11. The method of claim 7 , further comprising:

transmitting the vehicle data from the roadside unit to a server; and

collecting, aggregating, and processing the vehicle data received from the roadside unit at the server.

12. The method of claim 7 , wherein the vehicle data is exchanged between the connected vehicle and the roadside unit using dedicated short-range communication (DSRC), and the vehicle data comprises: speed, acceleration, engine performance, trajectory, intended destination, an indicator of an accident, or a combination thereof.

13. A method of actuating a traffic signal to improve traffic flow, the method comprising:

receiving a signal preemption request at a roadside unit from a connected vehicle;

determining a priority of the signal preemption request, wherein the priority of the signal preemption request is determined based on a level of urgency associated with the signal preemption request, the level of urgency being based on whether or not the vehicle data associated with the connected vehicle indicates an event critical to safety according to event-based data involving each of the connected vehicles;

determining to actuate the traffic signal after a specified amount of time has passed based on the priority of the signal preemption request; and

sending, to the connected vehicle, signal phase and timing information indicating when a future state of the traffic signal will change.

14. The method of claim 13 , wherein the level of urgency is further determined based on a type of the connected vehicle associated with the signal preemption request.

15. The method of claim 13 , wherein the connected vehicle is a snow plow, and the actuation of the traffic signal is in response to there being snow accumulation on a roadway associated with the snow plow.

16. The method of claim 13 , wherein the connected vehicle is a mass transit vehicle, and the actuation of the traffic signal is in response to a level of capacity of the mass transit vehicle or a level that the mass transit vehicle is behind schedule.

17. The method of claim 13 , wherein the traffic signal is actuated in response to low cross-traffic volume associated with the connected vehicle.

18. The method of claim 13 , wherein the signal preemption request is exchanged between the connected vehicle and the roadside unit using dedicated short-range communication (DSRC).