Which of the following is the stopping sight distance (most nearly) for a speed of 70 miles per hour (mph) on a flat grade roadway?

Question

Quizplus · Accepted Answer

The stopping sight distance (SSD) for a speed of 70 mph on a flat grade roadway is most nearly 730 feet. Solution: Use the SSD equation for flat grade (US Customary units) d = 1.47Vt + 1.075 V² /a Where, t = 2.5 seconds a = 11.2 feet/second² V = 70 mph d = 1.47 (70) (2.5) + 1.075 (70)²/ (11.2) = 257.3 + 470.3 = 727.6 feet -->round to 730 feet

Which of the Following Is the Stopping Sight Distance (Most