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Pages 65-66

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From page 65...
... 65 S E C T I O N 7 The conclusions of the research are as follows: 1. Median encroachments are initiated both from loss of control by drivers of single vehicles and by vehicle–vehicle interactions that result in one or more vehicles leaving the roadway and entering the median.
From page 66...
... 66 •• Sharp horizontal curves (particularly curves with radii of less than 3,000 feet) ; •• Steep grades (particularly grades of 4 percent or more, including both upgrades and downgrades)

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