40.4.1 - Design elements
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Practice Questions
Test your understanding with targeted questions
Define design speed in the context of traffic rotaries.
💡 Hint: Think about safety in vehicle movement.
What is the purpose of the exit radius?
💡 Hint: Consider how vehicles transition out of the rotary.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the typical design speed for urban rotaries?
💡 Hint: Refer to speed limits generally associated with busy areas.
True or False: The exit radius should be equal to or less than the entry radius in a rotary design.
💡 Hint: Think about vehicle transition speeds.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A rotary has an entry radius of 10m. If the exit radius is 1.5 times this entry radius, what should the exit radius be?
💡 Hint: Multiply the entry radius by 1.5.
Discuss the implications of having a very small weaving length at a rotary. How might it affect traffic safety and flow?
💡 Hint: Consider what happens when vehicles are too close together.
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