Civil Engineering (CE) Exam > Civil Engineering (CE) Videos > Crash Course: Civil Engineering (CE) > 3 # Geometric Design | Friction | Highway Engineering | GATE | ESE | Vishal Sir
3 # Geometric Design | Friction | Highway Engineering | GATE | ESE | Vishal Sir Video Lecture | Crash Course: Civil Engineering (CE)
FAQs on 3 # Geometric Design - Friction - Highway Engineering - GATE - ESE - Vishal Sir Video Lecture - Crash Course: Civil Engineering (CE)
| 1. What is geometric design in highway engineering? |  |
Ans. Geometric design in highway engineering refers to the process of creating and designing the physical layout and dimensions of a roadway, including its alignment, cross-section, horizontal and vertical curves, and other geometric features. It involves determining the appropriate design parameters to ensure safe and efficient movement of vehicles on the highway.
| 2. What is the role of friction in highway engineering? | |
Ans. Friction plays a crucial role in highway engineering as it affects the safety and performance of vehicles on the road. Friction between the tires of a vehicle and the road surface provides the necessary traction for braking, accelerating, and cornering. It helps in maintaining control and stability, especially during adverse weather conditions, such as rain or snow, when the road surface becomes slippery.
| 3. How does geometric design impact highway safety? | |
Ans. Geometric design directly impacts highway safety by establishing the layout and features of the roadway. A well-designed geometric layout, including appropriate lane widths, curves, and slopes, can enhance driver visibility, reduce the risk of accidents, and improve traffic flow. On the other hand, poor geometric design can lead to sharp curves, inadequate sight distances, or narrow lanes, increasing the likelihood of accidents.
| 4. What are the common components of geometric design in highway engineering? | |
Ans. Geometric design in highway engineering comprises various components, including alignment, cross-section, grade, and super-elevation. Alignment refers to the horizontal and vertical positioning of the roadway, including straight sections, curves, and grades. Cross-section defines the shape and dimensions of the roadway, including the number of lanes, shoulders, and medians. Grade refers to the slope or incline of the road, while super-elevation is the banking of curves to counteract centrifugal forces.
| 5. How does geometric design affect highway capacity and traffic flow? | |
Ans. Geometric design significantly influences highway capacity and traffic flow. Well-designed geometric features, such as wider lanes, gentle curves, and appropriate sight distances, can increase the capacity of a roadway by allowing for smoother and faster traffic movement. On the other hand, poor geometric design can lead to congestion, reduced speed, and decreased capacity, impacting the overall traffic flow and causing delays.
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Dec 23, 2024 Last updated |
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