Table 1

Monthly average for collisions and arrests for the experimental and control periods

 2001–7 Period Control period Experimental period Percentage change Arrests for traffic violations 3344.39 3978.78 1532.48 −61.48 Collisions with injuries for Quebec City 146.65 145.25 150.67 +3.73 Collisions with material damages only for Quebec City 612.68 601.73 643.95 +7.02 Collisions with injuries for the rest of the province 2845.14 2833.65 2877.95 +1.56