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Users Manual for Program group TRACK




Introduction
Plot programs
Programs translating track irregularities in MAUZ-format
Programs translating track irregularities in PLAS-format
Programs translating track irregularities in PSD-format
Programs translating track irregularities in FOUR-format
Programs translating track irregularities in STRIX-format
Programs translating track irregularities in CSV-format
Programs translating track irregularities in TRAC-, TRAX- or TRAX_WDESIGN-format
Programs operating on ASCII files
All track programs in alphabetical order




Introduction

In program group TRACK can programs operating on track data files be found. Track files used in simulations can be stored in the following formats:
TRAC Old format designed in 1973
TRAX New format introduced in 1994, because the old TRAC-format could not handle long tracks.
TRAX_WDESIGN New format introduced in 2002. The format added the designed track geometry to the file.


Measurement files which can be understood by the programs in TRACK:

MAUZ Track measurements made with a recording car having a symmetric axle arrangement
PLAS Track measurements made with a recording car having a non-symmetric axle arrangement
SPL Track measurements made with accelerometers and laser beams
PSD Power Spectral Density
FOUR Fourier Spectra

The translating programs in TRACK communicate with each other in the following way:


  ----------------------------------------------------------------------------------
  |                       TRAC-, TRAX or TRAX_WDESIGN-format                       |
  |                                                                                |
  ----------------------------------------------------------------------------------
     |                |                |                  |                |
     v trc_mauz       v trc_plas       |                  v psd, psd_four  v trc_fourpl 
     |                |                |                  |                |
     ^ trc_imauz      ^ trc_iplas2     ^ trc_strix_track2 ^ trc_ipsd       |
     |                |                |                  |                |
   ----------       ----------       ----------         ----------       ----------
   | MAUZ-  |       | PLAS-  |       | SPL-   |         | PSD-   |       | FOUR-  |
   | format |       | format |       | format |         | format |       | format |
   ----------       ----------       ----------         ----------       ----------

Format FOUR and STAT are marked with dashed lines because these formats are not stored permanently on file. They are only temporarily calculated for plotting the results directly on the screen.



Plot programs

The following programs generate plots of track stored in different formats:
trc_trac_plot   Plotting of track written in TRAC-, TRAX- or TRAX_WDESIGN- format
trc_mauzpl   Plotting of track written in MAUZ- or PLAS- format
trc_psdpl   Plots the PSD-spectra of a track written in TRAC-, TRAX- or TRAX_WDESIGN- format
trc_fourpl   Plots the Fourier spectra of a track written in TRAC-, TRAX- or TRAX_WDESIGN- format



Programs translating track irregularities in MAUZ-format.

track/Mauzin_side_view_606x224.png

The Mauzin track recording car is a French design. The vehicle have three axles for measuring the lateral track alignment, and 8 axles for measuring the vertical level.
The following programs are designed for handling track irregularities recorded by the Mauzin track measuring car:
Trc_mauz Create a MAUZ-formatted file from a TRACK-file
Trc_mauzcur Remove or add designed curves to a Mauzin registration
Trc_mauzmod Translate and scale the signals in a Mauzin registration
Trc_mauzpl Plot a Mauzin registration
Trc_imauz Translate a Mauzin registration into a TRACK-file
Trc_qnumb_mauz Calculate the quality number of a Mauzin registration



Programs translating track irregularities in PLAS-format.

track/Plasser_EM80_side_view.png

The PLAS-format is similar to the MAUZ-format above. In the PLAS-format track irregularities are also measured by comparing the position of the axles under the vehicle, but in the PLAS-format the measuring axles are not necessary equally spaced. The advantage of not having the axles equally spaced, is that it is possible to reduce the number of zeros in the measuring vehicle transfer function.
The number of measuring axles in the vehicle generating a track file in PLAS-format must be equal to 3.

The following programs are designed for handling track irregularities written in PLAS-format:
Trc_plas Create a PLAS-formatted file from a TRACK-file
Trc_plascur Remove or add designed curves to a track in PLAS-format
Trc_mauzmod Translate and scale the signals in a PLAS-formatted track
Trc_mauzpl Plot a PLAS-formatted track
Trc_iplas Translate a Matisa MD584 registration into a TRACK-file
Trc_iplas2 Translate a Plasser&Theurer EM80 registration into a TRACK-file


Programs translating track irregularities in PSD-format.

The following programs are designed for generating track irregularities from a Power Spectra Density:
Trc_psdpl Create and plot a PSD-spectra
Trc_ipsd Create a TRACK-file from a PSD-spectra



Programs translating track irregularities in FOUR-format.

The following program is designed for generating track irregularities from a Fourier Spectra:
Trc_fourpl. Create and plot a Fourier spectra



Programs translating track irregularities in STRIX-format.

The STRIX measuring car have laser beams measuring the vertical and lateral distance between the rails and the car body. In the car body two accelerometers are located measuring the vertical and lateral position of the carbody. The transfer function of STRIX is very flat, from short to long waves in the track alignment. The main job done in the translating files Trc_strix_track and Trc_strix_track2, is to separate the track irregularities from the designed track alignment.
The following programs are designed for handling track irregularities recorded by the STRIX track-measuring car:
Trc_strix_test Program trc_strix_test writes a table showing the coordinates for all sections of the sra-file which can be used for later calculations in program trc_qnum_strix or trc_strix_track.
Trc_strix_track Translate a STRIX registration into a TRAX-file. Designed curvature are written to the files 1R_track, fi_track and z_track.
Trc_strix_track2 Translate a STRIX registration into a TRAX_WDESIGN-file.
Trc_qnumb_strix Calculation of the Swedish Banverkets Q-number of the STRIX recording according to BVF 587.02.



Programs translating track irregularities from CSV-file.

Track recording vehicles writing their measurements in a CSV-file can be translated by using the following program:
Trc_csv_track Translate a CSV track recording into a TRAX_WDESIGN-file.



Programs translating track irregularities in TRAC-format.

The following programs are designed for handling track irregularities stored in the TRAC-, TRAX- or TRAX_WDESIGN- format:
Trc_mean Calculates the average gauge of a TRACK-file
Trc_qnumb_track Calculate the quality number of a TRACK-file
Trc_traccur Remove or add designed curves to a TRACK-file
Trc_tracmod Translate and scale the signals in a TRACK-file
Trc_trac_plot Plot a TRACK-file
Trc_updown Turns the orientation of a file, starting with the last line and ending with the first line. Also changes the sign of lateral and cant errors.



Programs operating on ASCII files.

The following program is designed for handling ASCII files:
Trc_number Create or change the X-column in an ASCII text file.



List of track programs in alphabetical order.


Trc_csv_track
Program trc_csv_track translates a CSV-file, into a TRAX_WDESIGN-formatted file.

Trc_concat
Writes separate ASCII-files into a file in TRAC-, TRAX-, TRAX_WDESIGN-, MAUZ- or PLAS-format.

Trc_fourpl
Calculates the Fourier series for the different track irregularities. The user can choose between three different types of spectra: real, imaginary and complex absolute value.

Trc_imauz
Program trc_imauz translates a MAUZ-formatted file into a TRAX-formatted file.

Trc_iplas
Program trc_iplas translates a PLAS-formatted file into a TRAX-formatted file.

Trc_iplas2
Program trc_iplas2 translates a PLAS-formatted file into a TRAX_WDESIGN-formatted file.

Trc_ipsd
Program trc_ipsd applies a PSD-spectra to a TRAX- or TRAX_WDESIGN-formatted file.

Trc_istat
Program trc_istat translates a STAT-formatted file into a TRAX-formatted file, with a modified statistical distribution.

Trc_mauz
Program trc_mauz translates a TRAC- or TRAX-formatted file into a MAUZ-formatted file.

Trc_mauzcur
Program trc_mauzcur removes or adds designed track curves in a MAUZ-formatted file.

Trc_mauzmod
Program trc_mauzmod scales and translates data in a MAUZ-formatted file.

Trc_mauzpl
Plots a file written in MAUZ-format.

Trc_mean
Calculates the mean gauge of a TRAC- or TRAX-formatted file.

Trc_number
Program trc_number adds a column with line numbers to a file, or renumbers the first column in the file.

Trc_plas
Program trc_plas translates a TRAC- or TRAX-formatted file into a PLAS-formatted file.

Trc_plascur
Program trc_plascur removes or adds curves in a PLAS-formatted file.

Trc_psdpl
Plots the PSD-spectra of a file written in TRAC-, TRAX- or TRAX_WDESIGN-format.

Trc_qnumb_mauz
Calculation of the Banverkets Q-number of a track written in MAUZ-format.

Trc_qnumb_strix
Calculation of the Banverkets Q-number of a track written in STRIX-format.

Trc_qnumb_track
Calculation of the Banverkets Q-number of a track written in TRAC-, TRAX- or TRAX_WDESIGN- format.

Trc_statpl
Plots the STAT-spectra of a file written in MAUZ- or PLAS-format.

Trc_strix_test
Program trc_strix_test tests which sections of a STRIX-file that can be used for further evaluation in program trc_strix_track and trc_qnumb_strix.

Trc_strix_track
Program trc_strix_track translates a STRIX-formatted file into a TRAX-formatted file.

Trc_strix_track2
Program trc_strix_track2 translates a STRIX file formatted in the new SPL-format, into a TRAX_WDESIGN-formatted file.

Trc_traccur
Program trc_traccur removes or adds designed track curves in a TRAC- or TRAX-formatted file.

Trc_tracmod
Program trc_tracmod scales and translates data in a TRAC- or TRAX-formatted files.

Trc_trac_plot
Plots tracks written in TRAC-, TRAX- or TRAX_WDESIGN-formatted files.

Trc_updown
Program trc_updown changes the direction of a track so the first point will be written last in the file and vice versa.


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