I've been sitting on this for a while but...

[CrazyEwok]

Possible your idear is. Plausible it is not. The amount of required investment for such an undertaking (along with many others) far out weighs the INDERVIDUAL gains. There is no way you can recoupe the costs and provide profit from such an exercise. Other small problems and possible clarifacations...
1. Abuse - A single train (as i read it as you are suggesting) would work but would be inefficent Multiple trains would work great but too many would ruin it. Your investors would want every cent out of your exploit so you would be running as many trains as you could before problems started to occur.
2. You would need the trains to be magnetic and the tracks to be the recievers as this would make it easier to collect the power generated otherwise the trains will require stators or a for of electrical conductant (you could go the otherway with possible intervals of Tesla coil recievers on the ground and the trains could have the coils discharging to the recievers).
3. Kill the passengers idea - You would need to stop the train to pick up the passengers. Stopping the train means stopping power generation. Also any guesses on how much power would be needed to stop a large heavy train travelling at 1000MPH???
4.Offshore maintenance - As you would need to have alot of the track running over water there would need to be some sort of off shore maintenance scheme. Floating railways, though done, require a hell of alot of maintenace and downtime...

Great idea and would work if we were a utopic society!!! write it down publish it and hope future generations have a chance to build it!!!

[Cap-Z-ro]

Wood that mean the earth could be derailed ?

Regards...

[b0rg13]

seeing how the moon dose not spin around maybe it would be better to use that?....doh never mind we dont live on the moon.

[christo4_99]

A single train (as i read it as you are suggesting) would work but would be inefficent Multiple trains would work great but too many would ruin it

i was thinking more along the lines of a continuous "train" with a continuous line of "sails/uprights" every so often.also,the passanger problem could be solved by building a siderail and car and "shuttling" the passangers up to speed.

[sushimoto]

For such an idea to work, this would slow down earths rotation. Try and get a permit for that. lol

You're better trying to harvest methane from termites.

LOOOL. this one was supergood.

tanx, made my day.