A single-lane off ramp has a radius of curvature of 1,500 ft. The ramp connects two freeways that are perpendicular (i.e., a total of 90° turn). Brush and other visual obstructions are cleared to 25 ft from the centerline of the off ramp. Assume a driver reaction time of 2.5 seconds. (a) What is the stopping sight distance for this curve? (b) What speed limit should be posted for this ramp? (c) What superelevation is required for this curve to be safe to navigate?

A single-lane off ramp has a radius of curvature of 1,500 ft. The ramp connects two freeways that are perpendicular (i.e., a total of 90° turn). Brush and other visual obstructions are cleared to 25 ft from the centerline of the off ramp. Assume a driver reaction time of 2.5 seconds. (a) What is the stopping sight distance for this curve? (b) What speed limit should be posted for this ramp? (c) What superelevation is required for this curve to be safe to navigate?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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