A 490 ft equal-tangent sag curve is currently designed for 50 mph. A CE 321 student thinks that traveling at 55 mph on the curve is safe for a van since the van will have a higher headlight height. If the all other design inputs are standard, what must the driver's eye height be (in the van) for the student's claim to be valid?

A 490 ft equal-tangent sag curve is currently designed for 50 mph. A CE 321 student thinks that traveling at 55 mph on the curve is safe for a van since the van will have a higher headlight height. If the all other design inputs are standard, what must the driver's eye height be (in the van) for the student's claim to be valid?

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter15: Geometric Design Of Highway Facilities

Section: Chapter Questions

Problem 8P

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