Half the children born now will be, sooner or later, injured in a road accident. One in 50 will be killed. For more than half a century the car has brought not only pleasure but also injury, death and untold suffering to millions. We are involved in a world epidemic of slaughter on the roads that every years kills 150,000 and maims five million people. The prevention of this carnage has become one of the major problems of our time. But short of making it a crime to own or drive a car, is there anything which can be done dramatically to reduce death and destruction on our roads?