A system for providing an emergency vehicle alert, comprising: a first device installed as a part of an emergency vehicle (EV) or attached to the EV , comprising: one or more sensors configured to collect EV-related data including a velocity of the EV and a type of the EV from the EV ; a first processor configured to generate a data signal including the EV-related data ; and a first transmitter configured to transmit the data signal to a management server ; and the management server in communication with the EV , comprising: a receiver configured to receive the data signal from the EV ; a second processor configured to determine a geofence for the EV based on the received EV-related data of the data signal and generate a safety warning signal including geofence information associated with the geofence, a size of the geofence increasing when the velocity of the EV increases and the size of the geofence is varied depending on the type of the EV ; and a second transmitter configured to transmit the safety warning signal to a second device installed as a part of another vehicle (30a-d) near the EV or attached to the another vehicle (30a-d). a first device installed as a part of an emergency vehicle (EV) or attached to the EV , comprising: one or more sensors configured to collect EV-related data including a velocity of the EV and a type of the EV from the EV ; a first processor configured to generate a data signal including the EV-related data ; and a first transmitter configured to transmit the data signal to a management server ; and the management server in communication with the EV , comprising: a receiver configured to receive the data signal from the EV ; a second processor configured to determine a geofence for the EV based on the received EV-related data of the data signal and generate a safety warning signal including geofence information associated with the geofence, a size of the geofence increasing when the velocity of the EV increases and the size of the geofence is varied depending on the type of the EV ; and a second transmitter configured to transmit the safety warning signal to a second device installed as a part of another vehicle (30a-d) near the EV or attached to the another vehicle (30a-d). one or more sensors configured to collect EV-related data including a velocity of the EV and a type of the EV from the EV ; a first processor configured to generate a data signal including the EV-related data ; and a first transmitter configured to transmit the data signal to a management server ; and the management server in communication with the EV , comprising: a receiver configured to receive the data signal from the EV ; a second processor configured to determine a geofence for the EV based on the received EV-related data of the data signal and generate a safety warning signal including geofence information associated with the geofence, a size of the geofence increasing when the velocity of the EV increases and the size of the geofence is varied depending on the type of the EV ; and a second transmitter configured to transmit the safety warning signal to a second device installed as a part of another vehicle (30a-d) near the EV or attached to the another vehicle (30a-d). a receiver configured to receive the data signal from the EV ; a second processor configured to determine a geofence for the EV based on the received EV-related data of the data signal and generate a safety warning signal including geofence information associated with the geofence, a size of the geofence increasing when the velocity of the EV increases and the size of the geofence is varied depending on the type of the EV ; and a second transmitter configured to transmit the safety warning signal to a second device installed as a part of another vehicle (30a-d) near the EV or attached to the another vehicle (30a-d). <EOS>