A method for enabling an interoperable vehicle safety network using wireless communication makes use of multiple traffic-monitoring devices that wirelessly communicate with each other. Each traffic-monitoring device records time-dependent inertial (TDI) data to determine a current trajectory. The TDI data includes current location, current velocity, and current orientation information. This information is used to monitor the current trajectory of each traffic-monitoring device and to predict the future position of each traffic-monitoring device. The trajectory of traffic-monitoring devices that are nearby to each other are analyzed to determine if there is a possibility of the devices colliding. If there is a possibility of the traffic-monitoring devices colliding, an alert is generated to prevent the collision. Additionally, the traffic-monitoring device sends out an emergency message if an accident actually occurs.