Samenvatting
The themes treated in eighteen national reports are as follows: general theory; financing; specific rural area problems; urban problems; objective criteria for the maintenance of roads; economic study of the private sector. The general report summarizes the different national reports. A review of the sessions on economic questions can be found in the journal "revue generale des routes", no 519, april, 1976. For the covering abstract, see IRRD abstract no 104484.