Safe and Sustainable Transport: A Matter of Quality Assurance The idea of organising a seminar came from a presentation by a Swedish representative of the Vision Zero programme. The basic idea of Vision Zero is that no person should be killed or seriously and permanently impaired in a road traffic accident. At the invitation of the Czech authorities the seminar was held in March 2002 in Prague. Many governmental and non governmental organisations responsible for road safety policies and work participated in the event.