A gate safety system for preventing collisions between a vehicle and a gate, having a) a gate module, comprising a1) a gate antenna unit having at least one first gate antenna implemented for mounting in a specified spatial relationship to a gate frame of the gate, and for generating a first three-dimensional electromagnetic field, a2) a gate processing unit connected to the gate antenna unit and adapted for defining at least one first gate warning zone for the gate, the first gate warning zone representing a sub-region of the first electromagnetic field, the gate processing unit being adapted for determining by means of the gate antenna unit whether a vehicle module matched to the gate antenna unit is present within the first gate warning zone,and a3) a gate interface for connecting the gate module to a controller of the gate; and having b) the vehicle module, comprising b1) a vehicle antenna unit having at least one first vehicle antenna implemented for mounting in a specified spatial relationship on the vehicle, and for generating a second three-dimensional electromagnetic field (16, 18, 20), b2) a vehicle processing unit connected to the vehicle antenna unit and adapted for defining at least one first vehicle warning zone for the vehicle, representing a sub-region of the second electromagnetic field (16, 18, 20), the vehicle processing unit being adapted for determining by means of the vehicle antenna unit whether the gate module matched to the vehicle antenna unit is present within the first vehicle warning zone, wherein the gate processing unit is configured to transmit a configuration of the first gate warning zone to the vehicle module. a) a gate module, comprising a1) a gate antenna unit having at least one first gate antenna implemented for mounting in a specified spatial relationship to a gate frame of the gate, and for generating a first three-dimensional electromagnetic field, a2) a gate processing unit connected to the gate antenna unit and adapted for defining at least one first gate warning zone for the gate, the first gate warning zone representing a sub-region of the first electromagnetic field, the gate processing unit being adapted for determining by means of the gate antenna unit whether a vehicle module matched to the gate antenna unit is present within the first gate warning zone,and a3) a gate interface for connecting the gate module to a controller of the gate; and having b) the vehicle module, comprising b1) a vehicle antenna unit having at least one first vehicle antenna implemented for mounting in a specified spatial relationship on the vehicle, and for generating a second three-dimensional electromagnetic field (16, 18, 20), b2) a vehicle processing unit connected to the vehicle antenna unit and adapted for defining at least one first vehicle warning zone for the vehicle, representing a sub-region of the second electromagnetic field (16, 18, 20), the vehicle processing unit being adapted for determining by means of the vehicle antenna unit whether the gate module matched to the vehicle antenna unit is present within the first vehicle warning zone, wherein the gate processing unit is configured to transmit a configuration of the first gate warning zone to the vehicle module.