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4. Find the minimum safe radius for the following situations: a. 4 lane arterial with a 10 median. Design speed 40 mph ; emax 0.03 b. 8 lane freeway with a 60 median. Design speed 85 mph ; emax 0.08 c. 2 lane local street with no parking permitted. Design speed 30 mph ; emax 0.02

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