An evaluation index calculation section (12) calculates an evaluation index using a measured vibration acceleration for each of plural measurement times. A multivariate analysis section (14) derives a category score for each of the plural measurement times by performing multivariate analysis employing a relationship equation in which the evaluation index is a target variable, travel speed is a quantitative explanatory variable, and measurement time is a qualitative explanatory variable. A change-in-condition evaluation section (16) evaluates a change in condition at a predetermined location on a track based on a change in the derived category scores for the plural measurement times. Track condition is thereby evaluated simply and at low cost without influence from variation in the travel speed of a railroad car.


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    Title :

    TRACK STATE EVALUATION METHOD, DEVICE, AND PROGRAM


    Additional title:

    VERFAHREN, VORRICHTUNG UND PROGRAMM ZUR AUSWERTUNG DES GLEISZUSTANDS
    PROCÉDÉ, DISPOSITIF ET PROGRAMME D'ÉVALUATION D'ÉTAT DE LA VOIE FERRÉE


    Contributors:

    Publication date :

    2022-09-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen



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