7 executive summary in preparation for the transport environment and health session of who ministerial conference on to be held london june 1999 a tri lateral project was carried out by austria france switzerland this assessed costs road traffic related air pollution three countries using common methodological framework from french side research has been selected as part co ordinated program predit 1 both steering groups charge ordination field effects externalities monetarisation underlines commitment towards international operation addition its positive impact growth prosperity national economy importance satisfying our individual needs mobility also adverse accidents noise harm crop damage jams etc these are mainly external which means that they not covered polluters motorists but imposed everybody present information about