TTE4804_Test_1_Spring11

# TTE4804_Test_1_Spring11 - Course Date Task TTE 4804Highway...

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1 Course: TTE 4804—Highway Geometric Design Date : Thursday, January 27, 2011 Task: 1 st Hourly Test Instructions This is a 75-minutes closed-book, closed-notes examination. Please solve Problem #1 any other three (3) problems for a total of four (4) problems. Please start a new problem on a separate piece of paper and show your work neatly and legibly. PROBLEM 1 Answer the following questions very precisely using brief explanation. 1.1 What is “degree-of-curve”? 1.2 Explain what is meant by the term “functional classification” of highways. 1.3 Explain what is meant by the term “design speed.” 1.4 Explain what is meant by the term “design driver.” 1.5 Explain what is meant by the term “design vehicle” and mention four classes of design vehicles according to AASHTO. 1.6 Explain what is meant by perception-reaction time and why is it important in geometric design of highways. 1.7 What is driver expectancy? 1.8 Explain the difference between “design speed” and “speed limit”. Mention two factors that affect the selection of design speed and speed limit.

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