17.5 - Problems
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
Define a summit curve.
💡 Hint: Focus on the meeting of gradients.
What does SSD stand for in road design?
💡 Hint: Think about the distance needed to stop safely.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary purpose of a summit curve in road design?
💡 Hint: Think about what helps drivers in difficult situations.
True or False: SSD is not necessary in road design.
💡 Hint: Consider the safety aspects of road design.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a summit curve where n = +6.0% and n = -2.0% with a specified speed of 50 km/h and SSD that must be at least 100m.
💡 Hint: Use your knowledge of gradients and stopping distances.
If site constraints limit a summit curve length to 300m, analyze how it affects safety with an increasing gradient of +8.0% and a speed of 65 km/h.
💡 Hint: Consider the effects of shorter designs on safety.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.