What exactly are the two Trainz track superelevation parameters P1 & P2? P1 = Superelevation Degrees and P2 = Superelevation Limit. Any one have a definitive answer from N3V?

I have been doing a research about superelevation. Its a straight forward calculation based on speed, radius, and technically track rail center line width where forces act, not the track guage. Consistency of units of measure do make a big difference so does the rail width and track gauge, i.e., track width = guage + 1 railhead width. US Customary units are typically measured as ft, mph and angles are measured in degrees. But sometimes meters are used instead of feet. Railroads in the US use the chord definition of a circular curve and superelevation is measured in inches. In Europe and Australia, International System (SI) units are meters, kph and angles are measured in radians, and superelevation is measured in mm.

Before posting this, I reviewed the N3V How To Guide on Superelevation. https://online.ts2009.com/mediaWiki/index.php/HowTo/Use_Superelevation and down loaded its spreadsheet and looked at the formulas. I have also searched the forum for superelevation posts and found other's spreadsheets on calculating superelevation and P1 and P2. P1 = Superelevation Degrees seems obvious but what units is N3V using in game for degrees? Radians or angle? P2= Superelevation Limit is not so obvious. What is it? There is no literature on superelevation limit in any railroad track design in Europe or US that I can find, so it must be a game parameter.

Just looked at the in Trains Plus. The Superelevation Limit now has a degrees symbol and its value can range from 0 to 100°. The Superelevation Degrees is entered as a decimal and can range from 0.0 to unlimited. This makes absolutely no sense.

What do you know about these to parameters? What's been your experience applying them and the result of various combinations of p1 & p2? Is it only for show? Does superelevation make a difference if derailment is set to realistic?

I have been doing a research about superelevation. Its a straight forward calculation based on speed, radius, and technically track rail center line width where forces act, not the track guage. Consistency of units of measure do make a big difference so does the rail width and track gauge, i.e., track width = guage + 1 railhead width. US Customary units are typically measured as ft, mph and angles are measured in degrees. But sometimes meters are used instead of feet. Railroads in the US use the chord definition of a circular curve and superelevation is measured in inches. In Europe and Australia, International System (SI) units are meters, kph and angles are measured in radians, and superelevation is measured in mm.

Before posting this, I reviewed the N3V How To Guide on Superelevation. https://online.ts2009.com/mediaWiki/index.php/HowTo/Use_Superelevation and down loaded its spreadsheet and looked at the formulas. I have also searched the forum for superelevation posts and found other's spreadsheets on calculating superelevation and P1 and P2. P1 = Superelevation Degrees seems obvious but what units is N3V using in game for degrees? Radians or angle? P2= Superelevation Limit is not so obvious. What is it? There is no literature on superelevation limit in any railroad track design in Europe or US that I can find, so it must be a game parameter.

Just looked at the in Trains Plus. The Superelevation Limit now has a degrees symbol and its value can range from 0 to 100°. The Superelevation Degrees is entered as a decimal and can range from 0.0 to unlimited. This makes absolutely no sense.

What do you know about these to parameters? What's been your experience applying them and the result of various combinations of p1 & p2? Is it only for show? Does superelevation make a difference if derailment is set to realistic?

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