1. Accidents at blackspots: Estimating the effectiveness of remedial treatment, with special reference to the “regression-to-the-mean” effect;Abbess;Traffic Eng. Control,1981
2. Investigation of accident data for railroad highway grade crossings;Coleman;Transp. Res. Rec.,1976
3. The California driver record study;Coppin,1965
4. Some difficulties in defining populations of “entities” for estimating the expected number of accidents;Elvik;Accid. Anal. Prev.,1988
5. Accidents at four-arm single carriageway urban traffic signals;Hall,1986