What is the main objective of geometric design of highways?
A Road width
B Aesthetic appeal
C Traffic flow
D Cost reduction
The geometric design of highways focuses on optimizing traffic flow by determining appropriate road alignments, gradients, and cross sections. This ensures safe, efficient, and smooth movement of vehicles.
What is the primary purpose of road markings?
A Traffic control
B Guidance
C Decoration
D Safety
Road markings guide drivers by indicating lanes, intersections, pedestrian crossings, and other traffic features. They ensure road safety by helping drivers maintain proper lane discipline and avoid accidents.
What is the role of highway drainage systems?
A Improve road quality
B Increase road width
C Reduce traffic
D Prevent flooding
Highway drainage systems are designed to prevent flooding by directing water away from the road surface. This reduces damage to the pavement, maintains road stability, and improves driving conditions during heavy rainfall.
What is highway capacity?
A Intersection flow
B Speed limits
C Traffic volume
D Road length
Highway capacity refers to the maximum volume of traffic a highway can handle efficiently. It is affected by factors such as lane width, traffic signals, road conditions, and vehicle types.
What factor influences the selection of pavement material?
A Construction speed
B Traffic load
C Road width
D Aesthetic value
The selection of pavement material is primarily based on the traffic load. Heavier traffic demands more durable and resilient materials, such as concrete or asphalt, to prevent quick degradation of the road.
What is the main purpose of safety audits in highway design?
A Road aesthetics
B Cost estimation
C Traffic speed control
D Hazard identification
Safety audits are conducted to identify potential hazards on highways, such as dangerous curves, poor visibility, and other factors that could compromise driver and pedestrian safety.
Which factor is crucial in the geometric design of highways?
A Environmental impact
B Soil type
C Traffic volume
D Aesthetic appeal
In geometric highway design, traffic volume is crucial as it determines the lane width, road curves, and shoulder space needed to accommodate safe and efficient traffic flow.
What does the term ‘road widening’ refer to?
A Adding lanes
B Installing barriers
C Raising road height
D Adding signage
Road widening refers to increasing the width of a road, typically by adding lanes, to accommodate higher traffic volumes. This helps improve traffic flow, reduce congestion, and prevent accidents.
What is the significance of road signs?
A Environmental protection
B Traffic regulation
C Aesthetic value
D Road width
Road signs regulate traffic by providing important information about speed limits, directions, hazards, and rules of the road, thus ensuring the safe movement of vehicles and pedestrians.
Which of the following is essential for pavement performance?
A Width
B Smoothness
C Strength
D Color
Pavement strength is essential for its performance, as it needs to support traffic loads and withstand environmental stress. Strong pavements prevent cracking, deformation, and premature failure.
What is the main objective of drainage design in highways?
A Traffic management
B Reducing noise
C Aesthetic enhancement
D Water removal
The primary objective of drainage design is to efficiently remove water from the road surface and substructure, preventing waterlogging, erosion, and damage to the road, thus ensuring long lasting pavement stability.
What does the term ‘bituminous materials’ refer to in road construction?
A Plastic composites
B Concrete mixtures
C Asphalt and tar
D Steel components
Bituminous materials, such as asphalt and tar, are commonly used in road construction due to their adhesive properties and flexibility. They form durable, water resistant surfaces that withstand high traffic loads and weather conditions.
What does ‘pavement evaluation’ involve?
A Surface inspection
B Material testing
C Road repair
D Traffic flow
Pavement evaluation involves inspecting the road surface for cracks, wear, rutting, and other forms of damage. This helps in planning necessary repairs or rehabilitation to maintain road safety and functionality.
What is the purpose of noise barriers along highways?
A Block sound
B Control speed
C Increase traffic
D Prevent accidents
Noise barriers are used to reduce noise pollution caused by highway traffic. These barriers absorb or deflect sound, improving the quality of life for people living near busy roads.
Which of the following is a factor in highway geometric design?
A Weather conditions
B Pavement color
C Traffic volume
D Environmental aesthetics
Highway geometric design factors in traffic volume to determine appropriate lane widths, shoulder design, turning radii, and road curves. This ensures the highway can accommodate expected traffic loads safely.