The invention discloses a regional scale
axle load spectrum determination method and
system based on multistage check classification. The method comprises the following steps: acquiring
axle load data and
intermodulation data of a plurality of stations; performing
data integrity,
axle load parameter logicality and cross-site consistency
verification on the acquired data, and screening out site combinations meeting
spectrogram calculation conditions; on the basis, main vehicle models in the area are identified, effective data are extracted, a direction coefficient, a lane coefficient, a vehicle model distribution coefficient and an axle
load distribution coefficient are calculated, and an axle load
spectrogram is drawn; furthermore, on the basis of historical measurement data and traffic operation characteristics, the axle
load spectrum change trend of the next period is predicted. According to the method, the defects of low classification precision, strong subjectivity and the like caused by
fuzzy classification depending on graphical representation in the prior art are effectively avoided, the problem that single-port data are easily influenced by equipment errors and environmental interference to generate deviation is effectively avoided, the reliability and accuracy of the axle
load spectrum are improved, and the method is suitable for popularization and application. The method is suitable for various
engineering scenes such as road
structure analysis and load
simulation.