2 2 0   tr uck s . ▁Ex act ▁time , ▁date , ▁location , ▁weight ▁and ▁ax le ▁data ▁were ▁logged ▁as ▁a ▁tr uck ▁approached ▁an ▁equ ipped ▁station . ▁Following ▁initial ▁tests , ▁MAC S ▁was ▁deployed ▁at ▁every ▁ins pection ▁station ▁along ▁I - 7 5 ▁from ▁Miami ▁to ▁Detroit , ▁and ▁along ▁Highway   4 0 1 ▁from ▁W inds or ▁to ▁Belle ville ▁in ▁ 1 9 9 4 . ▁The ▁project ▁demonstrated ▁the ▁effect iveness ▁of ▁electronic ▁systems ▁in ▁enfor cing ▁fre ight ▁restrictions ▁without ▁delay ing ▁vehicles , ▁while ▁alle vi ating ▁security ▁fear s ▁such ▁systems ▁could ▁be ▁comprom ised . ▁The ▁concept ▁has ▁since ▁been ▁applied ▁to ▁many ▁parts ▁of ▁Canada , ▁including ▁Highway   4 0 7 ' s ▁electronic ▁to ll ing ▁system . ▁ ▁" C arn age ▁Al ley " ▁▁ ▁The ▁section ▁of ▁Highway   4 0 1 ▁between ▁W inds or ▁and ▁London ▁has ▁often ▁been ▁referred ▁to ▁as ▁Car n age ▁Al ley , ▁in ▁reference ▁to ▁the ▁numerous ▁crashes ▁that ▁have ▁occurred ▁throughout ▁its ▁history . ▁The ▁term ▁became ▁more ▁common place ▁following ▁several ▁dead ly ▁p ile ups ▁during ▁the ▁ 1 9 9 0 s . ▁The ▁narrow ▁and ▁open ▁grass ▁median ▁was ▁an ▁in effect ive ▁obst acle ▁in ▁prevent ing ▁cross - med ian ▁coll isions . ▁The ▁soft ▁shoulders ▁consisted ▁of ▁gra vel , ▁with ▁sharp ▁s lop es ▁which ▁were ▁bl amed ▁for ▁facil it ating ▁vehicle ▁rol