Design & Construction Specifications - Town of Kernersville
Design & Construction Specifications - Town of Kernersville
Design & Construction Specifications - Town of Kernersville
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60 650Source: AASHTO Green Book, 1990.<strong>Design</strong>Speed(MPH)Table 3.4Adjustment Factors for Stopping Sight Distance on GradesIncrease for DowngradesCorrection in StoppingSight Distance (Feet)Decrease for Upgrades *Correction in StoppingSight Distance (Feet)3% 6% 9% 3% 6% 9%20 0 5 10 0 5 525 5 15 20 0 5 1030 10 20 30 5 10 2035 15 30 50 5 15 2540 20 40 70 10 20 3045 25 55 95 15 25 3550 30 70 120 20 30 4055 40 90 N/A 25 40 N/A