d) Determine the safe stopping sight distance while traveling at speed of 60 kmph. Assuming perception and brake reaction time is 2.5 sec. and coefficient of friction varying from 0.40 at 20 kmph to 0.35 at 100 kmph. Case: 1. level Ground 2. Upward gradient of 3%

3. A building is located 8.8 m from the centerline of the inside lane of a curved section of highway whose radius is 145 m. the road is level and e is equal to 0.10. Determine the maximum possible design speed. Assume the longitudinal and lateral coefficients of friction are equal to 0.35 and 0.13, respectively. Ensure you check speed for both stopping sight distance and vehicle stability. Assume a standard perception-reaction time of 2.5sec.

Determine the length required for the exit ramp having a downward slope of 2% and with the following information: Expressway Speed = 96 kph Exit sign letter height = 3 in Exit sign is located 80 m. from exit ramp. Motorist can see 1 in. of letter height at 50 ft. Perception-Reaction Time = 2.5 sec Friction = 0.35 %3D

10. The corner of a building is situated next to a horizontal curve with a radius of 40m on a level two-lane single carriageway. The inside lane is 3.2m wide and the inside edge of the road is 1.8m from the corner of the building. Assume: road shoulder width = 1.2m, coefficient of friction = 0.4, reaction time = 2.5 sec. How long is the sight distance?   A.37.77m   B.38.16m   C.37.59m   D 36.54m