17.2.3.4 - Critical length of the grade
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
What is the critical length?
💡 Hint: Think about how speed impacts gradients.
Why is 25 km/h often used for operational speed?
💡 Hint: Consider why speed matters for vehicles.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the critical length for loaded trucks?
💡 Hint: Think about what affects speed in gradients.
True or False: The critical length is always the same for every truck.
💡 Hint: Consider how load and power alter performance.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
Design a gradient with a maximum length of 300 meters for a truck weighing 20 tons. How would you calculate its critical length?
💡 Hint: Think about how weight and power impact speed.
Analyze the effects of critical length on a new road design for trucks versus buses. What specific considerations apply?
💡 Hint: Consider speed and operational requirements for different vehicles.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.