The design speed on a highway is 60kmph; calculate the super elevation if radius of curve is 150m and coefficient of friction is 0.15.
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- A road is being designed for a speed of 110 km/hron a horizontal curve with a super elevation of 8%.If the coefficient of side friction is 0.10, theminimum radius of the curve (in m) required forsafe vehicular movement is..The maximum allowable speed of a car that could travel a circular curve is 74 kph. If the impact factor is 0.17, determine the degree of the circular curve. Round off to two decimal places.Show complete solutionThe rated speed of a highway curve of 60-m radius is 45kph. If fk between the tires and the road surface is 0.5, find the maximum speed (in kph) at which a car can round the curve without skidding.
- The maximum allowable speed of a car that could travel a circular curve is 88 kph. If the impact factor is 0.17, determine the degree of the circular curve.A curving roadway has a curve with a radius of 580 m. The superelevation has been set at 0.05, angle of 65o and the coefficient of side friction is found to be 0.20. In addition, the traffic engineer has designed the speed as 100 km/hr.i. Explain whether this designed speed will provide a safe vehicle operation or not?ii. Find middle ordinate M,A roadway is being designed for a speed of 60 mi/h. At one horizontal curve, it is known that the superelevation is 7.0% and the coefficient of side friction is 0.10. Determine the minimum radius of curve (measured up to the traveled path) that will provide for safe vehicle operation. Use g = 32.2 ft/sec2
- A vehicle transverses a superelevated curve at 52 kph. If the radius of the curve is 64 meters, and the coefficient of friction is equal to 0.3, calculate the angle of superelevation as measured from the horizontal.A vehicle traverses a superelevated curve at 64 kph. If the radius of the curve is 52 meters, and the coefficient of friction is equal to 0.4, calculate the angle of superelevation (θ) as measured from the horizontal.Determine the total stopping distance (m) for a road with speed limit of 53kph and grade of 4.4%.
- Compute the minimum radius of a circular curve for a highway designed for 80 km/h. Because snow and ice are present, the maximum superelevation rate is 8%.The maximum allowable speed of a car that could travel a circular curve is 85kph. If the impact factor is 0.23, determine the degree of the circular curve.A vehicle traveling at a speed of 80kph accelerates at 3.41 m/s^2. The perception reaction time for the driver is 2.5sec. if the maximum grade of a road is -4% hint: use the acceleration for solving friction note: V1 = V2 1.) Compute the minimum sight distance 2.) Compute the length of the curve with a backward tangent of 6%