A vertical curve is required for a 1st class 3x3 highway section with entering and exiting grades of +5.10% and -6.40%, respectively. The point of intersection of the tangents is at station 20+44.00, with an elevation of 620 m. The perception-reaction time is assumed to be 1.5 seconds, the friction factor is 0.35, and the design speed is 100 km/h. a) Identify and specify the type of vertical curve. Provide a clear figure showing the PVI, PVC, PVT, and the midpoint of the vertical curve. b) Calculate the length of the vertical curve. c) Assess whether the calculated vertical curve length meets the minimum conditions. d) Find the elevation and stationing of the points of vertical curvature (PVC and PVT) and the midpoint of the vertical curve.

A vertical curve is required for a 1st class 3x3 highway section with entering and exiting grades of +5.10% and -6.40%, respectively. The point of intersection of the tangents is at station 20+44.00, with an elevation of 620 m. The perception-reaction time is assumed to be 1.5 seconds, the friction factor is 0.35, and the design speed is 100 km/h. a) Identify and specify the type of vertical curve. Provide a clear figure showing the PVI, PVC, PVT, and the midpoint of the vertical curve. b) Calculate the length of the vertical curve. c) Assess whether the calculated vertical curve length meets the minimum conditions. d) Find the elevation and stationing of the points of vertical curvature (PVC and PVT) and the midpoint of the vertical curve.

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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