The concept of sustainable traffic safety is used in the Netherlands and

usually it includes the following: 1) an infrastructure whose design is

adapted to the limitations of human capabilities; 2) vehicles equipped to

facilitate human tasks and constructed so as to optimally protect people,

vulnerable as they are; and 3) traffic participants who are adequately

educated, informed and, where necessary, monitored. The paper details the

concept especially when it comes to the categorisation of the road network

using different criteria.