FUNCTION EVALUATION BASED UPON THE FIELD TEST RESULTS AND VERSATILE IMPLEMENTATION FOR THE ACTUAL APPLICATION OF THE TRACK MAINTENANCE SCHEDULING MODEL

Abstract

 Railway track irregularity needs to be kept within satisfactory range through appropriate maintenance scheduling work. We propose an all-integer type linear programming model for obtaining an optimal railway track maintenance schedule. In order to evaluate the functions of the scheduling model for the actual application of the optimization model results we apply both simulation methods and field tests. Also for the versatile implementation of the optimization model results we propose constraint relation methods for avoiding infeasibility as our "unusual" model results. Finally we discuss the future problems and possibilities for our model to contribute not only for our domestic use but also for international standardization area.