I never try to beat the train myself, although as I'm sitting waiting I see many people do it. I never thought it was worth it, but I never realized its true mathamaticly.

Sorry for the 2nd post, but after looking through your entry again I realized I could add this to my website WebCalc. So you can now easily calculate it at http://www.webcalc.net/calc/0493.php and I linked to your article from the help page.

Although the type of person that runs them probably will not bother trying to equate the value, I hope it will help somebody though.