Where is Centreline Rail to Centreline Rail Distance used within OpenRail?

Question

I understand that the "Inside Rail to Inside Rail Distance" (gauge) is used in cant calculations but I do not know where the "Centreline Rail to Centreline Rail Distance" is used within the software? The help file is not very helpful in this regard (see below).

Grzegorz Cwiek · Accepted Answer

Hi Rick 
 These settings are used when placing rail tracks with the "Create rails" command. 
 That command previously included "Left rail" / "Right rail" sections for setting rail offset from the centerline etc. - now this is being set in the rail settings you've mentioned

Babulal Sahu · Answer

Superelevation, Cant deficiency and Cant excess - (1) Superelevation/cant (a) The equilibrium superelevation/cant necessary for any speed is calculated from the formula 
 
 Where C is cant/superelevation in mm. G is the gauge of track + width of rail head in mm. R is the radius of the curve in metres. 
 Here G is called Dynamic Gauge , is used in calculation of Cant 
 G is considrered as Rail Center to Rail center Distance, For Standard Gauge (gauge width of 1435mm) it is considrered as 1510, but it varies on the Rail Head width used. 
 it is dynamic gauge (G)used in calculation of cant in the above Formula 
 The above formula for cant calculation is based on India Standards. 
 indianrailways.gov.in/.../PermanentWayManualCh4_data.htm 
 
 But some country standards use Gauge width (w) instead of dynamic Gauge (G) in the Empirical Formula for calculation of Cant. 
 
 Regards 
 Babulal

Where is Centreline Rail to Centreline Rail Distance used within OpenRail?

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