One general aspect of the present disclosure includes a method for warning of collision avoidance. The method may include receiving, with at least one server, position and movement information from a remote client, forming a motion model of the client including a predicted position of the client at a future time, and determining whether an object will be in a proximity of the position of the client at the time. If the object will be in the proximity of the position of the client at the time, the method may include determining a probability of a collision between the client and the object at the time. If the probability meets a threshold, the method may include transmitting a collision avoidance signal to at least one of the client and the object.