APPENDIX 1 - Statistics on the Minnesota Populations
Percentage of Accidents versus Accident and Vehicle Variables
for Three-legged and Four-legged Intersections and Segments
(Minnesota two-lane rural roads, 1985-1989)



949 three-legged intersections and 1,440 accidents
1,156 four-legged intersections and 2,028 accidents
3,308 segments and 8,083 accidents



*3,308 segments with 8,083 non-intersection accidents were studied, but the constraint that shoulder type remain the same from left to right and throughout the time period 1985-1989 reduces these to 3,203 segments. Of these two had no shoulders, yielding the numbers shown above.