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What is the primary purpose of superelevation in highway design?
Practice Questions
Q1
What is the primary purpose of superelevation in highway design?
To increase the friction between tires and pavement
To counteract the lateral acceleration on vehicles
To improve drainage on the roadway
To reduce the cost of construction
Questions & Step-by-Step Solutions
What is the primary purpose of superelevation in highway design?
Steps
Concepts
Step 1: Understand that when vehicles go around a curve, they experience a force pushing them outward.
Step 2: Realize that this outward force can make it hard for vehicles to stay on the road, especially at high speeds.
Step 3: Learn that superelevation is the banking of the road at a curve, which means the road is tilted to help counteract that outward force.
Step 4: Know that by tilting the road, superelevation helps vehicles stay on their path and reduces the risk of accidents.
Step 5: Conclude that the primary purpose of superelevation is to enhance safety by making it easier for vehicles to navigate curves.
No concepts available.
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