Optimizing my commute III

[asterroc]

I was reminded by mathsex people that (1) if I assume gas mileage and speed are equally important, that I could just average the optimal speed for both and I get around 65mph for the ideal driving speed, or (2) a potential way of giving a more realistic value to my time as compared to the gas mileage is to put a dollar value on my time - according to my salary that's around $20/hr. More math to come...

Comments

[gemini6ice.livejournal.com]

oh, wait , +D.

http://auto.howstuffworks.com/question477.htm

[zandperl.livejournal.com]

That formula is for POWER, not fuel efficiency. We need a quadratic (or at least an even power function) b/c we need an absolute maximum. A cubic equation implies that as you drive infinitely faster, you can get infinite fuel efficiency.