This issue of the Bulletin deals with road safety, which has become an urgent worldwide problem. Given the fact that road accidents are increasing, that they affect the planet's most vulnerable population (namely the lowest income groups in developing countries) and that this is becoming a genuine public health crisis, the United Nations has decided that it is urgent to address the matter. The World Health Organization (WHO) has therefore dedicated the World Health Day 2004 to road safety.Given the urgent need for action, the Chiefs of Transport of the five Regional Economic Commissions of the United Nations held a meeting in Geneva (September 2004), where they agreed to reinforce the studies and projects carried out in this area.Below is a summary of various information sources and initiatives adopted to assess and tackle this modern epidemic and offers a pessimistic outlook for 2020, when road traffic crashes will constitute the third cause of death unless serious action is taken from today.