Practice Mechanical Widening (15.4.1) - Horizontal Alignment II - Transportation Engineering

Practise this section

9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is mechanical widening?
Show hintHide hint
Think about the curvature of a road and vehicle paths.
Question 2.
Why do vehicles off-track?
Show hintHide hint
Consider the geometry of a turning vehicle.
3Question 3.
What is mechanical widening primarily concerned with?
- Clearance for emergency vehicles
- The vehicle off-tracking phenomenon
- Improving aesthetic appeal
Show hintHide hint
Recall what happens when vehicles navigate a curve.
4Question 4.
True or False: Off-tracking only affects large trucks.
- True
- False
Show hintHide hint
Consider the dynamics of different vehicle types.
Question 5.
Given a highway curve with R = 300m for a vehicle with a wheelbase of 15m and two lanes, calculate the extra width needed.
Show hintHide hint
Consider the formula with the lane count in mind.
Question 6.
Explain how mixed traffic conditions influence mechanical widening requirements on a curve.
Show hintHide hint
Think about how different vehicles curve differently.

5 more questions in this section. Enroll free to practise them all.