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QUESTION: 1

The design of horizontal and vertical alignments, super elevation, gradient is worst affected by

Solution:

All the geometric design features are worst affected by velocity of the vehicle only.

QUESTION: 2

The most raised portion of the pavement is called

Solution:

The most elevated or the highest portion of a pavement is called as a crown, whereas camber is the portion that is raised for drainage purposes.

QUESTION: 3

The extra width of pavement is provided on

Solution:

Extra width of pavement is provided on horizontal curve to avoid the skidding, if the vehicle negotiates the curve then the centrifugal force will act towards outside and there is a chance of skidding, to avoid this extra width is provided.

QUESTION: 4

Transition curve is introduced in

Solution:

A transition curve is introduced between horizontal curve and circular curve, the transition curve slowly introduces the centrifugal acceleration to avoid the danger of skidding.

QUESTION: 5

The most important factor that is required for road geometrics is

Solution:

The road user characteristics, traffic and vehicular characteristics mostly influence the road geometric design but the most important factor is speed of vehicle.

QUESTION: 6

The design speed of NH on a cross slope of up to 10% is

Solution:

The ruling speed up to a cross slope of 10% is 100kmph; it decreases with increase in increase of cross slope.

QUESTION: 7

A part of pavement raised with respect to one side keeping the other side constant is called

Solution:

The super elevation is a portion of pavement raised on outer edge with respect to inner edge or both edges raised with respect to centre.

QUESTION: 8

The main purpose of providing camber is

Solution:

During rainy season the roads are usually flooded with water so to keep the pavement dry they have to be drained off so the road is provided with a camber.

QUESTION: 9

The legal axle load of the design vehicle used in India is

Solution:

The legal axle load used for design of pavements is 8.2 tonnes; usually they are expressed in MSA (million standard axles).

QUESTION: 10

In India the type of traffic assumed to design pavements is

Solution:

In India generally there is always a mixed traffic flow except during midnight hours and early morning hours, so the designer has to assume mixed traffic flow only.

### Geometric Design of Highways

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### PPT: Highway Geometric Design

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- Test: Geometric Design of Highways
Test | 10 questions | 20 min

- Test: Highway Geometric Design -1
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- Test: Highway Geometric Design - 3
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- Test: Highway Geometric Design -2
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- Test: Geometric Progressions
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