Some major cities are doing the same. In New York City, Mayor Bill de Blasio has adopted “Vision Zero”, stating that “no level of fatality on city streets is inevitable or acceptable” and hence the City of New York would “no longer regard traffic crashes as mere ‘accidents’, but rather as preventable incidents that can be systematically addressed”.10 Private-sector companies are also using their own versions of a Safe System, for example, applying it to fleet management policies, or, in the case of car manufacturers, as their design philosophy. Similarly, the new international standard for road traffic safety management systems, the International Organization for Standardization’s ISO 39001 standard, uses Safe System principles to guide organisational safety objectives, targets and the planning requirements.