Method for estimating the height of a reflector of a vehicle , wherein the method comprises the following steps: reading in at least one reflection signal from the reflector of the vehicle at a point in time, wherein a signal-emitting transmitting device previously sends a transmission signal , the reflection of which forms the at least one reflection signal , wherein the at least one reflection signal represents at least one piece of information relating to a relative speed (v r ) of the vehicle and wherein a further reflection signal from a further reflector of the vehicle is read in, wherein the at least one further reflection signal represents a piece of information relating to a relative speed (v r ) of the vehicle ; specifying a speed estimation value of the vehicle ; and determining a height estimation value of the reflector using the relative speed (v r ) of the vehicle and the speed estimation value of the vehicle and using the relative distance of the vehicle from the signal-emitting transmitting device and wherein a further height estimation value of the further reflector is determined from the further reflection signal using the information relating to the relative speed (v r ) of the vehicle and with a checking step, wherein, in the checking step , it is checked whether the height estimation value or the further height estimation value is within a tolerance range, wherein the specifying step and determining step are carried out repeatedly if the height estimation value and/or the further height estimation value are outside the tolerance range, wherein, in the repeated specifying step , a re-estimated speed estimation value is specified for the speed of the vehicle , and so the speed of the vehicle can be found. reading in at least one reflection signal from the reflector of the vehicle at a point in time, wherein a signal-emitting transmitting device previously sends a transmission signal , the reflection of which forms the at least one reflection signal , wherein the at least one reflection signal represents at least one piece of information relating to a relative speed (v r ) of the vehicle and wherein a further reflection signal from a further reflector of the vehicle is read in, wherein the at least one further reflection signal represents a piece of information relating to a relative speed (v r ) of the vehicle ; specifying a speed estimation value of the vehicle ; and determining a height estimation value of the reflector using the relative speed (v r ) of the vehicle and the speed estimation value of the vehicle and using the relative distance of the vehicle from the signal-emitting transmitting device and wherein a further height estimation value of the further reflector is determined from the further reflection signal using the information relating to the relative speed (v r ) of the vehicle and with a checking step, wherein, in the checking step , it is checked whether the height estimation value or the further height estimation value is within a tolerance range, wherein the specifying step and determining step are carried out repeatedly if the height estimation value and/or the further height estimation value are outside the tolerance range, wherein, in the repeated specifying step , a re-estimated speed estimation value is specified for the speed of the vehicle , and so the speed of the vehicle can be found. <EOS>