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railroad track at a speed of eed of 60 mph. Assume

railroad track at a speed of eed of 60 mph. Assume

Structural Analysis
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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highway engineering

 

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13. A vehicle is approaching a railroad track at a speed of 45 mph. The train approaches at a speed of 60 mph. Assume AASHTO recommended design values for perception-reaction time. The stop line is located 15 ft from the near side rail, and the driver is located 5 ft back from the front bumper of the vehicle. a. What is the required sight triangle distance (m) along the railroad track for the vehicle to stop if the length of the vehicle 27.5 ft? b. What is the required sight triangle distance (ft) along the highway for a vehicle to stop at the stop line for an approaching train?
Transcribed Image Text:13. A vehicle is approaching a railroad track at a speed of 45 mph. The train approaches at a speed of 60 mph. Assume AASHTO recommended design values for perception-reaction time. The stop line is located 15 ft from the near side rail, and the driver is located 5 ft back from the front bumper of the vehicle. a. What is the required sight triangle distance (m) along the railroad track for the vehicle to stop if the length of the vehicle 27.5 ft? b. What is the required sight triangle distance (ft) along the highway for a vehicle to stop at the stop line for an approaching train?
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