— Stopping Sight Distance (AASHTO)
Stopping sight distance on grade, SSD = 0.278·V·t + V²/[254·(a/9.81 ± G)], with the brake-reaction and braking components reported separately (AASHTO default t = 2.5 s, a = 3.4 m/s²).
Open data for a field built on precision
— Stopping Sight Distance (AASHTO)
Stopping sight distance on grade, SSD = 0.278·V·t + V²/[254·(a/9.81 ± G)], with the brake-reaction and braking components reported separately (AASHTO default t = 2.5 s, a = 3.4 m/s²).