How to stop people from crossing railway tracks in Mumbai?

Well the obvious way is to "TRY" and educate them...but that seems to be very difficult. Another solution can be to use a system where in you have a small current flowing in the tracks, and once a person trips on the railway track the circuit is broken and that triggers the emergency brake of the train, the monitoring of the track could be done to about 300feet in front of the train, so that the triggering of the brakes is localized and not universal, this can save power too as the whole track need not be electrified. I am not sure how the complete circuit will look, but i feel its possible. At least i am trying rite?. oh! and instead of a small current that is harmless, we could use a bit more DC current (DC is less harmful than AC) to shock the people a little bit :), and remind them that what they are doing is wrong.