Question: Consider a vertical curve where a + 4 % grade intersects with a - 3 % grade with a design speed of 5 5 m

Consider a vertical curve where a +4% grade intersects with a -3% grade with a design speed of 55mih. Determine the minimum length of vertical curve using the SSD criteria. Perception-reaction time is 2.5 seconds. Deceleration rate is 11.2ftsec2
Consider a vertical curve where a + 4 % grade

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