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Users Manual for Program TRC_QNUMB_MAUZ  



Table of Contents

   Introduction
   Calculation procedure
   Input data commands
   Example


Introduction

Program TRC_QNUMB_MAUZ calculates the track alignment quality of a track written in mauz-format. The alignment quality is measured in a so called Q-number defined by Banverket, Sweden. The definition of the Q-number is defined in BVF 541.60 written by Banverket, Sweden. A short description of the Q-number is given in this manual under Calculation procedure.


Calculation procedure

  1. Read the Mauzin-registration written in *.mauz-format.
  2. Calculate the Q-number according to:

    2.1 Vertical errors:
    2.1.1 High pass filter column #1 and #2 in a FIR-filter according to fig. 10.6 in BVF 541.60 written by Banverket. 2.1.2 Calculate the average value of column #1 and #2. 2.1.3 Calculate the standard deviation of the average value, the standard deviation sigmaH.
    2.2 Lateral errors:
    2.2.1 High pass filter column #5 and #6 in a FIR-filter according to fig. 10.8 in BVF 541.60 written by Banverket. 2.2.2 Calculate the standard deviation of the lateral irregularities. The lateral track irregularity signal is the best column of #5 and #6
    2.3 Cant errors:
    2.3.1 High pass filter column #3 in a FIR-filter according to fig. 10.7 in BVF 541.60 written by Banverket. 2.3.2 Calculate the standard deviation of the cant errors:
    2.4 Samverkan errors.
    2.4.1 Add the two signals in phase, lateral errors and cant errors. 2.4.2 Calculate the standard deviation of the sum, the sum is denoted sigmaS (samverkan).
    2.5 Calculate the Q-number per kilometer according to the following formula:
    Where:
    sigmaH and sigmaS = Average standard deviation for sigmaH och sigmaS.
    sigmaHgr and sigmaSgr = Comfort limits for the track alignment in actual class.

    Quality-
    class    		 sth
    Train with locomotive     		sth
    High speed trans
    sigmaHgr
    sigmaSgr
    K0 145- 185- 0.9 2.4
    K1 125-140 160-180 1.1 3.0
    K2 105-120 135-155 1.3 3.6
    K3 75-100 95-130 1.7 4.5
    K4 40- 70 60- 90 2.2 6.0
    K5 - 40   2.7 7.5

Input data commands

Input data is read in free format, valid separators between the input values are <space>, <comma>, <tab>, <equal sign> or <carriage return>. The commands can be written both in lower and upper case letters. The operation of the program is controlled by the commands described below; some of the commands also need arguments.

INFIL
Track data file written in trac- or trax- format.
Declared = Character*132    Default = Blank

L_INTERVAL
Length of track sections for which evaluation of standard deviation and Q-numbers will take place.
Declared = Integer*4    Default = 200

Example of an input data file

Following example: Master.trc_qnumb_mauzf can be used as a master file: 

                                               
 ##                                            
 ##      Input data for program Trc_qnumb_mauz 
 ##                                            
                                               
   INFIL= track_irr1.mauz                      
                                               
   L_INTERVAL= 200