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Public Roads, January/February 2009,
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| SITE NUMBER | ROUTE | BEGIN MILEPOST | END MILEPOST | BEFORE PERIOD | AFTER PERIOD | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AADT | Head-on + Sideswipe Opposite | All Other | TOTAL | AADT | Head-on + Sideswipe Opposite | All Other | TOTAL | |||||
| CENTERLINE RUMBLE STRIP INSTALLED | 1 | SR64 | 267.97 | 270.27 | 2,600 | 0 | 2,900 | 0 | ||||
| 2 | SR64 | 270.27 | 276.16 | 2,600 | 0 | 2,900 | 2 | 2 | ||||
| 3 | SR64 | 268.40 | 295.83 | 2,600 | 1 | 1 | 2,900 | 1 | 1 | 2 | ||
| 4 | US89 | 441.88 | 458.00 | 14,000 | 6 | 5 | 11 | 15,400 | 1 | 6 | 7 | |
| 5 | US89 | 528.10 | 531.20 | 3,000 | 1 | 1 | 3,100 | 1 | 1 | |||
| 6 | US89 | 531.20 | 546.80 | 3,000 | 5 | 3 | 8 | 3,100 | 2 | 4 | 6 | |
| 7 | US89 | 551.20 | 557.00 | 4,400 | 2 | 2 | 3,800 | 1 | 1 | |||
| 8 | US389 | 27.00 | 32.04 | 1,200 | 1 | 1 | 2,500 | 1 | 1 | |||
| 9 | US89 | 458.00 | 470.80 | 6,900 | 2 | 9 | 11 | 8,100 | 2 | 2 | ||
| 10 | US89 | 495.00 | 503.80 | 3,900 | 1 | 1 | 4,300 | 1 | 1 | 2 | ||
| 11 | US89 | 503.80 | 524.80 | 3,900 | 5 | 5 | 4,300 | 1 | 5 | 6 | ||
| 12 | US160 | 322.70 | 331.00 | 3,300 | 1 | 4,000 | 0 | |||||
| 13 | US160 | 331.00 | 341.00 | 3,300 | 1 | 1 | 1 | 4,000 | 0 | |||
| 14 | SR389 | 0.00 | 27.00 | 800 | 1 | 6 | 7 | 2,600 | 2 | 2 | ||
At the 14 study sites, the centerline crossover crashes accounted for 36 percent of the total fatal and serious injury crashes occurring during the before period and 22 percent in the after period. Source: ADOT |
