Subject: Genration of electricity using transports

I'm doing a project on how to solve global warming and this is my idea.
1.A car equipped with a magnet drives over the coil embedded in the road.
2.The direction of the magnet’s motion is always perpendicular to the vertical
component of the magnetic field.
3.When a wire moves at right angles to a magnetic field, a current is induced in
the wire. The voltage of this current is determined by the formula  where
V=voltage, B=the strength of the magnetic field, s= the speed of the wire, and 
=the length of the wire.
4.The current is then run through the rectifier-battery-inverter complex to
convert it to smooth ac.
Is this a feasible idea? How much impact will it make in solving global warming?
Is a calculation on how much electricity it will generate possible at this point
when it's just a prototype? Does a similar technology exist?

Re: Genration of electricity using transports