1. Another look at traffic signals and accidents;Andreassend,1970
2. Accident risks and capacity of single level intersections;Babkov;Tenth International Study Week in Traffic and Safety Engineering, Rotterdam, September 1970,1970
3. The Highway Risk Problem—Policy Issues on Highway Safety;Baker,1971
4. The measure of exposure to motor-vehicle accidents;Battey;Traffic Safety Res. Rev.,1959
5. Effect of average speed and volume on motor vehicle accidents on two-lane tangents;Belmont;HRB Proc.,1953