Acceleration, deceleration, and stopping sight distance (SSD) criteria are necessary considerations for determining geometric design requirements of roadways. Acceleration and deceleration are influenced by many factors, including grade, vehicle type, and maneuver type. Stopping sight distance is influenced by factors such as brake reaction time, object height, and driver’s eye height. NCHRP Research Report 1081: Acceleration, Deceleration, and Stopping Sight Distance Criteria for Geometric Design of Hig…
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