Mark wroteA few rounds of one juta Rp fines will whip the local driving public into shape soon enough.
Seemingly a good idea, and works in other countries, and is still being applied in Jakarta where it doesn't work. Most people, mainly motor cyclists, don't have that kind of money.
An idea I posit is to have a huge secure compound, and expropriate those bikes from errant drivers, give them a receipt and tell them to recover their bikes a week later. Any bikes not recovered within a certain timescale can be sold-off to pay for the scheme.