Method for classifying vehicles, wherein vehicles are measured when driving through a radar cone formed by radar radiation by way of the surfaces of the vehicles onto which radar radiation impinges reflecting the radar radiation and generating measurement signals with frequencies corresponding to the Doppler shift, having the following method steps: a) arranging an angle-resolving radar device which provides measurement signals with frequencies corresponding to the Doppler shift from which radial distances, object angles (γ) and radial velocities are derivable at a vertical placement height (vAH) with respect to the road surface of a road and at a horizontal acute placement angle (α) with respect to a road edge of the road, b) emitting radar radiation, which forms a radar cone, using the radar device and capturing the measurement signals, from at least one vehicle driving through the radar cone, at a plurality of measurement time points within a measurement time (t), c) storing the frequencies of the captured measurement signals of measured vehicles as functions over the measurement time (t) and creating a spectrogram per vehicle in the form of a time profile of the Doppler frequencies of the captured measurement signals of measured vehicles, d) checking the spectrograms for in each case one assessment range having maximum bandwidth of the frequency and defining at least one measurement time point as the assessment time point (t B) in the respective assessment range, e) comparing said assessment ranges to assessment ranges of stored spectrograms for different vehicle classes and assigning them to the one that is most alike in order to thereby classify the vehicles driving through, and f) deriving object angles (γ) from the measurement signals at the at least one assessment time point (t B) within the assessment ranges having maximum bandwidth, wherein the respectively derived object angles (γ) are stored for the relevant assessment time point (t B) in each case as a function over the frequency, and the profile of the function is compared to comparison models stored for different vehicle classes to verify the classification of the vehicles. a) arranging an angle-resolving radar device which provides measurement signals with frequencies corresponding to the Doppler shift from which radial distances, object angles (γ) and radial velocities are derivable at a vertical placement height (vAH) with respect to the road surface of a road and at a horizontal acute placement angle (α) with respect to a road edge of the road, b) emitting radar radiation, which forms a radar cone, using the radar device and capturing the measurement signals, from at least one vehicle driving through the radar cone, at a plurality of measurement time points within a measurement time (t), c) storing the frequencies of the captured measurement signals of measured vehicles as functions over the measurement time (t) and creating a spectrogram per vehicle in the form of a time profile of the Doppler frequencies of the captured measurement signals of measured vehicles, d) checking the spectrograms for in each case one assessment range having maximum bandwidth of the frequency and defining at least one measurement time point as the assessment time point (t B) in the respective assessment range, e) comparing said assessment ranges to assessment ranges of stored spectrograms for different vehicle classes and assigning them to the one that is most alike in order to thereby classify the vehicles driving through, and f) deriving object angles (γ) from the measurement signals at the at least one assessment time point (t B) within the assessment ranges having maximum bandwidth, wherein the respectively derived object angles (γ) are stored for the relevant assessment time point (t B) in each case as a function over the frequency, and the profile of the function is compared to comparison models stored for different vehicle classes to verify the classification of the vehicles.