
TYVM means Thank You Very Much.
By the way, our track width is typically 4 foot 8-1/2 inches. It does get wider on curves and like many things, exactly written standards exist.
Our Washington DC Metro Subway uses 4 foot 8 inches instead of the above standard. Little known info. It allowed them to make slightly tighter curves in an already built and busy city. Yes, 1/2 inch made a difference!
John,
Thank You Very Much!
I will next time