@inproceedings{paperid:102198, author = {Ayati, Esmaeel}, title = {Drowsiness and Fatigue, The Most Frequent Causes of Sever Accidents Among Heavy Vehicle Drivers in Iran}, booktitle = {3rd International Conference on Traffic and Transport Psychology}, year = {2004}, location = {Nottingham}, keywords = {fatigue; driver; road; accident; heavy vehicle; Iran.}, }