Can children take on drivers who speed?
Drivers caught speeding in a 20 mph zone in London are being given a choice...
Pay a fine or confront a group of children who go to school on the road they were speeding down.
Most drivers have chosen to speak to the children, but they've been in for a big surprise when they do.
See what these students had to say in this piece for the BBC's Crossing Divides season.