XIth World Road Congress - Rio de Janeiro 1959 - Reports by Technical Committees

Report by Slipperiness Committee

Report by Committee on tests for road making materials

Report by Committee on Airfield Runways

Report by Committee on Low Cost Roads

Report by Committee for the study of road characteristics with relation to safety

Report by Committee on Roads Tunnels

Report by Dictionary Committee

Rio de Janeiro 1959

World Road Congress - Rio de Janeiro 1959 - World Road Association