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Highway engineering saved lives during 193-car pile-up - Fox17

Highway engineering saved lives during 193-car pile-up
Fox17
KALAMAZOO COUNTY, Mich.— When we drive down the highway most people can see guard rails, cables, sloped medians, and ditches. However, most people don't know what the purpose for those things is, and why highways are designed that way.

Admin 12.01.2015 0 62
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12.01.2015 (3773日前)
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