System and method for measuring road evenness through analyzing octave band of oscillation on pavement

The present invention can reduce the cost of surveying the flatness of the pavement road by replacing the existing expensive equipment by using a relatively low-cost vibration sensor and noise measuring means, it is possible to immediately investigate the road flatness when necessary without time limit. This has the effect of providing flexibility in surveying and repairing pavements. To this end, in particular, the vibration sensor 100 mounted on the vehicle 10 traveling on the road to convert the vibration of the vehicle 10 into a vibration signal; Noise measuring means (200) connected to the vibration sensor (100) for receiving a vibration signal and generating octave band information corresponding to the vibration signal; And frequency analysis means (300) for selecting predetermined frequency bands for road surface flatness on the pavement based on the octave band information and outputting road surface flatness information corresponding to the selected frequency band. Disclosed is a road surface flatness measurement system using band characteristics.