The stopping sight distance (SSD) on a highway depends primarily on:
ADesign speed, perception-reaction time, and coefficient of friction
BCamber of road only
CVehicle width and wheel gauge
DPavement thickness
Explanation
Stopping Sight Distance (SSD) is the minimum distance required for a driver traveling at design speed to safely stop before hitting a stationary object. It depends on design speed, driver perception-reaction time (typically 2.5s), braking efficiency, and road friction coefficient.

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