Speed cameras are universally hated, and most drivers think they are just a money-making scam. To ask for them to be removed is unrealistic. This is a simple alternative which is widely used in Spain, and it works. If you speed and cause a whole stream of traffic to stop, you will be very unpopular, so speeding would become socially unacceptable, which is the real objective.
Speed cameras should be linked to traffic lights further down the road. These lights would normally be permanently set to green. Anyone speeding would be stopped by red lights. Anyone jumping the red lights would be guilty of dangerous driving.