“…Possible links between driving hours, fatigue, performance and health for long-distance drivers of heavy vehicles have not been fully explored. Field studies and statistical analyses of truck driver accident data have proliferated recently in the literature (Fuller, 1978(Fuller, , 1984Hamelin, 1987;McDonald, 1981McDonald, , 1984Miller, 1976). Studies of city bus drivers are now also appearing (Evans, Palsane and Carere, 1987;Mulders, Meijman, O'Hanlon and Mulder, 1982;Pokorny, Blom and van Leeuwen, 1987).…”