Situation 3: For the next three questions, consider the following: A driver traveling at 50 mph is 80 m from a wall ahead the driver applies the brake immediately at a brake reaction time of 2 seconds and begins slowing the vehicle at 10 m/s. 48. Determine the braking time or time during deceleration. a. 2.23 s b. 1.55 s c. 5.41 s d. 2.76 s 49. Assume that the brake efficiency of the vehicle is 70%, find the average skid resistance of the pavement. a. 1.456 b. 1.550 c. 1.100 d. 2.761 50. Compute the thickness of a rigid pavement with a wheel load capacity of 54 kN, if the allowable tensile stress of concrete is 1.6 MPa. Neglect the effects of dowels. a. 318 mm b. 381 mm c. 183 mm d. 138 mm

Situation 3: For the next three questions, consider the following: A driver traveling at 50 mph is 80 m from a wall ahead the driver applies the brake immediately at a brake reaction time of 2 seconds and begins slowing the vehicle at 10 m/s. 48. Determine the braking time or time during deceleration. a. 2.23 s b. 1.55 s c. 5.41 s d. 2.76 s 49. Assume that the brake efficiency of the vehicle is 70%, find the average skid resistance of the pavement. a. 1.456 b. 1.550 c. 1.100 d. 2.761 50. Compute the thickness of a rigid pavement with a wheel load capacity of 54 kN, if the allowable tensile stress of concrete is 1.6 MPa. Neglect the effects of dowels. a. 318 mm b. 381 mm c. 183 mm d. 138 mm

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter3: Characteristics Of The Driver, The Pedestrian, The Bicyclist, The Vehicle, and The Road

Section: Chapter Questions

Problem 10P

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