QUESTION 7 hat is the braking distance (ft) when the design speed is 65 mph, assuming the AASHTO reco te and perception-reaction time.

What distance will a vehicle travel before coming to a complete stop from a speed of 70 mph, (a) When the vehicle is traveling on a level roadway with no grade, (b-1) When the vehicle is traveling uphill on a roadway of constant grade = 0.10, (b-2) If the roadway grade is not constant but starts at 0.10 uphill and decreases to 0 at a continuous rate, would the braking distance be equal to, greater than, or less than that in the case of a constant 0.10 uphill grade (briefly explain why) (c) When the vehicle is traveling downhill on a roadway of constant grade = 0.10. Assume a perception-reaction time of 2.5 seconds, and an a/g value equal to 0.35.

What is the SSD of a driver/vehicle traveling at 75 mph along a 4% downhill? Assume general braking Select one: a. 470 ft. O b. 1243 ft. C. 760 ft. O d. 885 ft.